# The 100 largest Design Services companies in the world

Tamtam tracks 1,516 Design Services companies worldwide. This list ranks the 100 largest by number of employees on LinkedIn, led by Arup, nothing and HDR. Their median headcount is 1,485. Half of them were founded in 1992 or later. The most common headquarters are London (10), New York (8) and San Francisco (6).

This selection of design services companies includes large, established firms as well as some younger companies. They offer a broad spectrum of services, from engineering and architecture to brand management and digital solutions. Many focus on sustainable development and innovative approaches in their respective fields. Among the companies listed are Arup, a global collective dedicated to sustainable development; HDR, an employee-owned firm specializing in engineering and architecture; Dar, which provides multidisciplinary engineering and project management; and Tata Consulting Engineers, a global leader in integrated engineering solutions. A notable pattern is the global distribution of headquarters, with significant representation from London, New York, and Mumbai, indicating a worldwide presence of major design service providers.

🌍 World · 100 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Arup](https://www.tamtam.ai/c/arup) (arup.com)<br>A global collective of designers and consultants dedicated to sustainable development, collaborating with clients to shape a better world using technology and imagination | Design Services | 🇬🇧 London | 26,193 | 1946 |
| 2 | [nothing](https://www.tamtam.ai/c/nothing-barrington) (nothing.com)<br>This company offers exceptional and unique services/products that are unmatched by any other competitor in the market | Design Services | 🇦🇺 Barrington | 25,818 |  |
| 3 | [HDR](https://www.tamtam.ai/c/hdr) (hdrinc.com)<br>Employee-owned design firm offering engineering, architecture, environmental, and construction services Top-ranked globally, specializing in healthcare design with a focus on collaboration and career growth | Design Services | 🇺🇸 Omaha | 17,540 | 1917 |
| 4 | [Dar](https://www.tamtam.ai/c/dar-beirut) (dar.com)<br>Provides multidisciplinary engineering, design, planning, sustainability consulting, digital solutions, and project management for infrastructure and urban development worldwide. | Design Services | 🇱🇧 Beirut | 13,528 | 1956 |
| 5 | [Tata Consulting Engineers](https://www.tamtam.ai/c/tata-consulting-engineers) (tataconsultingengineers.com)<br>Global leader in integrated engineering solutions with expertise in infrastructure, power, and resources across various industries, serving both domestic and international markets | Design Services | 🇮🇳 Mumbai | 12,755 | 1962 |
| 6 | [Brand Management Agency](https://www.tamtam.ai/c/brand-management-agency) (brandinglo.com)<br>Empowering businesses to unlock their brand's potential through brand management, asset management, marketing services, and expert guidance for growth and success | Design Services | 🇬🇧 London | 9,080 |  |
| 7 | [ZZP/Zelfstandig Ondernemer](https://www.tamtam.ai/c/zzp-zelfstandig-ondernemer) (zelotes.nl)<br>This company specializes in developing branding, websites, SEO, and internet marketing services for self-employed entrepreneurs and freelancers | Design Services | 🇳🇱 Dokkum | 7,617 |  |
| 8 | [Khatib & Alami](https://www.tamtam.ai/c/khatib-and-alami) (khatibalami.com)<br>A multidisciplinary design consultancy focused on professional excellence, sustainability, and innovation in delivering projects across various regions worldwide | Design Services | 🇸🇬 Downtown | 7,600 | 1964 |
| 9 | [Any Studios](https://www.tamtam.ai/c/any-studios) (anystudios.com)<br>The company specializes in creating brand stories through strategic design and high-quality production services | Design Services | 🇺🇸 New York | 7,103 | 2015 |
| 10 | [RH](https://www.tamtam.ai/c/rh) (careers.rh.com)<br>The company seeks innovative individuals who push boundaries, embrace challenges, and create the extraordinary Explore opportunities to make the impossible possible | Design Services | 🇺🇸 Corte Madera | 6,561 | 1979 |
| 11 | [Working for myself](https://www.tamtam.ai/c/working-for-myself) (emilyannstone.com)<br>The company offers freelance services including consulting, web development, design, user experience, illustration, and photography to clients | Design Services | 🇺🇸 Los Angeles | 5,624 | 2015 |
| 12 | [Buruh Seni Studio](https://www.tamtam.ai/c/buruh-seni-studio)<br>Specializes in developing strategies for building brand image and increasing brand awareness through various creative methods Reach us at admin@buruhsenistudioid | Design Services | 🇮🇩 Tangerang | 4,657 |  |
| 13 | [Bakery](https://www.tamtam.ai/c/bakery-jersey-city) (bkry.org)<br>A company that organizes multi-day workshops for clients and creatives to collaborate on brand and design challenges, with traditional design services available | Design Services | 🇺🇸 Jersey City | 4,526 | 2011 |
| 14 | [Open](https://www.tamtam.ai/c/open) (notclosed.com)<br>"Independent design studio creating impactful experiences through identity systems, campaigns, editorial design, short films, and architectural signage for various clients" | Design Services | 🇺🇸 New York | 3,984 | 1998 |
| 15 | [Pöyry](https://www.tamtam.ai/c/poyry) (poyry.com)<br>Global company with 16,000 experts in engineering, design, and advisory services Committed to shaping the future through innovative solutions | Design Services | 🇫🇮 | 3,966 |  |
| 16 | [GP](https://www.tamtam.ai/c/gp) (media7.net)<br>Specializing in medical website design, our agency creates engaging healthcare websites with comprehensive marketing solutions to assist healthcare providers and medical device companies in succeeding | Design Services | 🇬🇧 London | 3,873 |  |
| 17 | [M.C. Dean, Inc.](https://www.tamtam.ai/c/m-c-dean-inc) (mcdean.com)<br>Designing, building, and maintaining cyber-physical solutions for critical facilities, secure environments, infrastructure, and enterprises; specializing in electrical, security, telecommunications, and control systems | Design Services | 🇺🇸 Tysons | 3,845 |  |
| 18 | [Nada](https://www.tamtam.ai/c/nada-barcelona) (estudionada.com)<br>An interior architecture and design studio based in Barcelona and Valencia, creating honest, pure, and timeless spaces with a focus on sustainability and functionality | Design Services | 🇪🇸 Barcelona | 3,790 | 2017 |
| 19 | [I do not have an official company as of yet](https://www.tamtam.ai/c/i-do-not-have-an-official-company-as-of-yet)<br>This company is currently in the process of being established and its official services or products have not been defined yet | Design Services | 🇺🇸 Detroit | 3,666 |  |
| 20 | [99designs](https://www.tamtam.ai/c/99designs) (99designs.com)<br>A global creative platform connecting freelance designers with clients to collaborate on custom designs they love using the 99designs process | Design Services | 🇦🇺 Richmond | 3,609 | 2008 |
| 21 | [Gerente](https://www.tamtam.ai/c/gerente) (varinhadigital.com.br)<br>The company specializes in branding, graphic design, advertising, communication, web design, and multimedia services | Design Services | 🇧🇷 São Paulo | 3,337 |  |
| 22 | [Figma](https://www.tamtam.ai/c/figma) (figma.com)<br>The company provides a platform for teams to collaborate in designing and constructing projects together | Design Services | 🇺🇸 San Francisco | 3,165 | 2012 |
| 23 | [SANDOW](https://www.tamtam.ai/c/sandow) (sandow.com)<br>Innovative company in design, materials, and luxury industries transforming publishing with a diverse portfolio of design media and services brands | Design Services | 🇺🇸 New York | 2,978 |  |
| 24 | [interior designer](https://www.tamtam.ai/c/interior-designer) (nimatalebloo.com)<br>A women-owned residential custom cabinetry and design firm specializing in kitchen, bath, and interior design services | Design Services | 🇺🇸 Los Angeles | 2,659 |  |
| 25 | [Kolding Kommune](https://www.tamtam.ai/c/kolding-kommune) (kolding.dk)<br>Creating a vibrant community in Kolding Kommune that empowers residents to design their ideal lives through location, nature, culture, and various opportunities | Design Services | 🇩🇰 Kolding | 2,510 |  |
| 26 | [BB](https://www.tamtam.ai/c/bb) (bbeditora.com.br)<br>Dynamic and creative in actions and words. Quickly attends to complex client needs. Constant investment in relationships and technology. Values people, respect, and worth. | Design Services | 🇧🇷 | 2,432 | 1998 |
| 27 | [OWNER METHOD](https://www.tamtam.ai/c/owner-method) (ownermethod.com)<br>A creative agency specializing in brand creation, design, and business solutions, utilizing a bullet-proof method to spread brands effectively | Design Services | 🇲🇽 Miguel Hidalgo | 2,394 | 2014 |
| 28 | [IMEG](https://www.tamtam.ai/c/imeg) (imegcorp.com)<br>IMEG is a national engineering and design consulting company focusing on people-centered engineering, high-performing building systems, infrastructure, and construction services | Design Services | 🇺🇸 Rock Island | 2,268 | 1955 |
| 29 | [California Closets](https://www.tamtam.ai/c/california-closets) (californiaclosets.com)<br>Custom home organization and storage systems through expert design and craftsmanship for closets, living spaces, and offices to enhance daily residential life. | Design Services | 🇺🇸 Richmond | 2,150 | 1978 |
| 30 | [Thornton Tomasetti](https://www.tamtam.ai/c/thornton-tomasetti) (thorntontomasetti.com)<br>The company applies scientific and engineering principles to solve various challenges in industries like building design and construction, with a focus on innovation | Design Services | 🇺🇸 New York | 2,145 | 1949 |
| 31 | [Zutari](https://www.tamtam.ai/c/zutari) (zutari.com)<br>The company is an infrastructure engineering and advisory practice that maximizes the value of water, transport, energy, resources, and built-environment projects | Design Services | 🇿🇦 Tshwane | 2,131 | 2020 |
| 32 | [frog](https://www.tamtam.ai/c/frog) (frog.co)<br>Innovative global consultancy part of Capgemini Invent, crafting transformative human experiences through creativity, strategy, design, and data for business growth | Design Services | 🇺🇸 San Francisco | 2,103 | 1969 |
| 33 | [Architectural Digest](https://www.tamtam.ai/c/architectural-digest) (architecturaldigest.com)<br>A platform offering information on architecture, interior design, art, antiques, and products tailored for the design community, from Architectural Digest Subscribe for updates | Design Services | 🇺🇸 New York | 2,090 |  |
| 34 | [Lollypop Design Studio](https://www.tamtam.ai/c/lollypop-design-studio) (lollypop.design)<br>Harnessing design and technology to create transformative digital experiences, specializing in research-driven design and development across various industries | Design Services | 🇺🇸 San Jose | 2,088 |  |
| 35 | [Freelance Graphic and Web Design](https://www.tamtam.ai/c/freelance-graphic-and-web-design) (aisforandrew.com)<br>A company specializing in freelance website design, user interface design, and logo design services | Design Services | 🇺🇸 Philadelphia | 2,022 | 2008 |
| 36 | [RS&H](https://www.tamtam.ai/c/rs-and-h) (rsandh.com)<br>A leading architecture, engineering, and consulting firm with over 80 years of experience, focused on exceptional work, innovation, and community impact | Design Services | 🇺🇸 Jacksonville | 2,003 | 1941 |
| 37 | [MINE™](https://www.tamtam.ai/c/mine-san-francisco) (minesf.com)<br>A San Francisco design and brand communication firm that creates brands, books, products, packaging, and campaigns for various clients, including notable individuals and organizations | Design Services | 🇺🇸 San Francisco | 1,952 | 2004 |
| 38 | [Gamil Design](https://www.tamtam.ai/c/gamil-design) (gamil.com)<br>Brand and product development firm creating meaningful customer experiences, dynamic connections, impactful design, manufacturing, and organizing large events and creative communities. | Design Services | 🇺🇸 Raleigh | 1,841 | 1995 |
| 39 | [AKQA](https://www.tamtam.ai/c/akqa) (akqa.com)<br>A global design and innovation company with 3,000 professionals in 20 countries, recognized for award-winning work in digital craft and design | Design Services | 🇺🇸 San Francisco | 1,835 |  |
| 40 | [IBI Group](https://www.tamtam.ai/c/ibi-group) (arcadis.com)<br>A global design firm shaping future cities with technology, sustainability, and human-centric design, now part of Arcadis, delivering innovative solutions worldwide | Design Services | 🇳🇱 Amsterdam | 1,818 |  |
| 41 | [Home office](https://www.tamtam.ai/c/home-office) (andregalhardo.com.br)<br>Personal business specializing in freelance work creation | Design Services | 🇧🇷 | 1,698 |  |
| 42 | [Interior Logic Group, Inc.](https://www.tamtam.ai/c/interior-logic-group-inc) (interiorlogicgroup.com)<br>National provider of design and finish solutions offering installation of flooring, cabinets, countertops, and window coverings for homebuilders, commercial, and multifamily customers. | Design Services | 🇺🇸 San Diego | 1,664 |  |
| 43 | [Designit](https://www.tamtam.ai/c/designit) (designit.com)<br>An award-winning experience innovation company helping businesses create change through strategy, design, marketing, and tech solutions for complex problems | Design Services | 🇩🇰 Copenhagen | 1,663 |  |
| 44 | [Monotype](https://www.tamtam.ai/c/monotype) (monotype.com)<br>This company specializes in bringing brands to life through type and technology, offering accessible font solutions for creative professionals globally | Design Services | 🇺🇸 Woburn | 1,661 | 1887 |
| 45 | [Event](https://www.tamtam.ai/c/event-london) (museumstudio.com)<br>A global experience design agency specializing in large-scale exhibitions, spaces, and experiences for museums, institutions, and organizations worldwide Expertise in conceptualization, design, and realization | Design Services | 🇬🇧 London | 1,540 | 1986 |
| 46 | [Haworth Lifestyle](https://www.tamtam.ai/c/haworth-lifestyle) (haworthlifestyle.com)<br>This company is a federation of brands focused on high-end furniture, emphasizing tradition, uniqueness, quality, and passion in a global market | Design Services | 🇮🇹 Milan | 1,523 |  |
| 47 | [Conciencia Diamante](https://www.tamtam.ai/c/conciencia-diamante) (blogspot.com)<br>A multidisciplinary project promoting the development of consciousness through exploration of intuition, perception, intellect, emotion, and spirituality, led by Marcela Ferra Rosales | Design Services | 🇧🇷 México | 1,522 | 2002 |
| 48 | [McNally Bharat Engineering Company limited](https://www.tamtam.ai/c/mcnally-bharat-engineering-company-limited) (mcnallybharat.com)<br>A leading engineering company in India providing turnkey solutions in power, steel, material handling, mineral beneficiation, and more with over 300 constructed plants | Design Services | 🇮🇳 Kolkata | 1,521 | 1943 |
| 49 | [Own organisation interior/furniture design](https://www.tamtam.ai/c/own-organisation-interior-furniture-design) (stephanieerwich.com)<br>Specializing in interior and furniture design, the company creates innovative and personalized spaces tailored to meet the needs of its clients | Design Services | 🇳🇱 | 1,493 |  |
| 50 | [M Moser Associates](https://www.tamtam.ai/c/m-moser-associates) (mmoser.com)<br>It designs and delivers workplace environments focused on health, happiness, and sustainability, enhancing connections between people and their spaces. | Design Services | 🇺🇸 28 Global Locations | 1,485 | 1981 |
| 51 | [Metal](https://www.tamtam.ai/c/metal) (metal.cc)<br>Multidisciplinary branding design firm specializing in print communications, corporate branding, web design, social media marketing, and interactive promotions | Design Services | 🇺🇸 Wilmington | 1,462 | 1987 |
| 52 | [INDUSTRY](https://www.tamtam.ai/c/industry) (industry.global)<br>A global brand consultancy specializing in defining white space, creating authentic storytelling, and bringing ideas to life with strategic creativity | Design Services | 🇺🇸 Portland | 1,457 | 2011 |
| 53 | [Royal College of Art](https://www.tamtam.ai/c/royal-college-of-art) (rca.ac.uk)<br>Specialist postgraduate university offering art, design, architecture, and humanities programs focused on innovation, research, and global challenge solutions. | Design Services | 🇬🇧 London | 1,452 |  |
| 54 | [Interior](https://www.tamtam.ai/c/interior-shanghai) (google.com)<br>Specializing in interior design services, our team transforms spaces with a focus on creating beautifully curated interiors | Design Services | 🇨🇳 Shanghai | 1,446 |  |
| 55 | [IDEO](https://www.tamtam.ai/c/ideo) (ideo.com)<br>This company helps individuals and organizations design innovative products and services to create a more sustainable and equitable future | Design Services | 🇺🇸 San Francisco | 1,443 |  |
| 56 | [GPI / Greenman-Pedersen, Inc.](https://www.tamtam.ai/c/gpi-greenman-pedersen-inc) (gpinet.com)<br>A leading engineering consulting firm specializing in transportation infrastructure and building projects, providing comprehensive design, planning, and construction services | Design Services | 🇺🇸 Melville | 1,429 | 1966 |
| 57 | [Gresham Smith](https://www.tamtam.ai/c/gresham-smith) (greshamsmith.com)<br>A team of designers and planners dedicated to improving communities by creating vital infrastructure and institutions with a focus on collaboration and care | Design Services | 🇺🇸 Nashville | 1,428 | 1967 |
| 58 | [Adobe Premiere Pro - Tips, Tricks, & Tutorials](https://www.tamtam.ai/c/adobe-premiere-pro-tips-tricks-and-tutorials)<br>Providing comprehensive education through multiple learning methodologies to ensure a deep understanding of all subjects | Design Services | 🇺🇸 Sunnyvale | 1,423 |  |
| 59 | [MONKEY OK](https://www.tamtam.ai/c/monkey-ok) (monkeyok.com.my)<br>We specialize in transforming ideas into tangible creations by providing professional solutions and support in bringing concepts to life | Design Services | 🇲🇾 Kuala Lumpur | 1,417 | 2022 |
| 60 | [IDEA](https://www.tamtam.ai/c/idea-sofia) (idea.bg)<br>Specializing in diverse interior design projects across Europe, we create immersive environments by combining technology, craftsmanship, and unique design concepts for various industries | Design Services | 🇧🇬 Sofia | 1,408 | 2004 |
| 61 | [Freepik](https://www.tamtam.ai/c/freepik) (freepik.com)<br>A global tech company offering high-quality graphic and audiovisual resources to help anyone create great designs faster through various digital design projects | Design Services | 🇪🇸 Málaga | 1,359 | 2010 |
| 62 | [IA Interior Architects](https://www.tamtam.ai/c/ia-interior-architects) (interiorarchitects.com)<br>An innovative global architecture firm specializing in interior design, providing strategic planning, architecture, and design services for corporations and institutions worldwide | Design Services | 🇺🇸 San Francisco | 1,321 | 1984 |
| 63 | [BDP](https://www.tamtam.ai/c/bdp) (bdp.com)<br>international interdisciplinary firm combining architecture, design, engineering, and urbanism to create functional, inspiring spaces across diverse sectors worldwide | Design Services | 🇬🇧 Manchester | 1,265 |  |
| 64 | [BakerHicks](https://www.tamtam.ai/c/bakerhicks) (bakerhicks.com)<br>A design, engineering, and project delivery company specializing in infrastructure, process, and built environments across various sectors, using innovative BIM technology | Design Services | 🇬🇧 Warwick | 1,259 | 1957 |
| 65 | [Freelance, self-employed](https://www.tamtam.ai/c/freelance-self-employed-toronto) (jobicy.com)<br>A company dedicated to providing services and solutions for home offices, catering to the needs of remote workers and independent professionals | Design Services | 🇨🇦 Toronto | 1,245 | 2014 |
| 66 | [Freelancing (Hire me!)](https://www.tamtam.ai/c/freelancing-hire-me) (joecahill.com)<br>The company offers services to freshen brands, build apps, and create engaging user experiences to help clients achieve their goals | Design Services | 🇺🇸 New York | 1,245 | 1999 |
| 67 | [Freelance UI/UX Designer](https://www.tamtam.ai/c/freelance-ui-ux-designer) (freelancehubs.com)<br>This company provides freelance services for UI/UX design projects, focusing on creating user-friendly and visually appealing digital interfaces | Design Services | 🇬🇧 London | 1,228 |  |
| 68 | [DIALOG](https://www.tamtam.ai/c/dialog-calgary) (dialogdesign.ca)<br>Architects, urban planners, engineers, and landscape architects collaboratively improve communities and the environment through design and multidisciplinary solutions for urban vibrancy, health, and transportation. | Design Services | 🇨🇦 Calgary | 1,224 | 1960 |
| 69 | [DGS Technical Services Inc.](https://www.tamtam.ai/c/dgs-technical-services-inc) (dgsts.com)<br>Structural steel design, detailing, and mechanical engineering services provider with expertise in various disciplines and offshore delivery capabilities in multiple countries | Design Services | 🇺🇸 Elgin | 1,217 | 2004 |
| 70 | [Null](https://www.tamtam.ai/c/null-saint-joseph)<br>A versatile and innovative organization with a wide range of offerings and expertise in various fields | Design Services | 🇺🇸 Saint Joseph | 1,213 | 2006 |
| 71 | [Central](https://www.tamtam.ai/c/central) (centralstory.com)<br>A research, design strategy, and development firm that partners with organizations to solve complex problems through innovative solutions and product development | Design Services | 🇺🇸 Sausalito | 1,200 | 2002 |
| 72 | [Space Matrix](https://www.tamtam.ai/c/space-matrix) (spacematrix.com)<br>Creating positive work environments that foster employee growth, business development, and environmental sustainability for collective success. | Design Services | 🇸🇬 Singapore | 1,182 | 2001 |
| 73 | [Marks](https://www.tamtam.ai/c/marks) (makemarks.com)<br>Global brand design and experience agency part of a brand impact group, providing expertise in brand needs from intelligence to expression | Design Services | 🇺🇸 Chicago | 1,179 | 2019 |
| 74 | [Merrick & Company](https://www.tamtam.ai/c/merrick-and-company) (merrick.com)<br>Employee-owned professional firm providing engineering, architecture, surveying, and geospatial solutions to clients in energy, national security, life sciences, and infrastructure markets Offering corporate responsibility programs | Design Services | 🇺🇸 Greenwood Village | 1,162 | 1955 |
| 75 | [Cardno](https://www.tamtam.ai/c/cardno) (stantec.com)<br>A company has rebranded to Stantec Follow the Stantec page for updates | Design Services | 🇦🇺 Fortitude Valley | 1,155 |  |
| 76 | [Zealous Services](https://www.tamtam.ai/c/zealous-services) (zealousxr.com)<br>A leading provider of Design Services and International Contact Center services with the largest design studio in India & Philippines | Design Services | 🇮🇳 Chennai | 1,130 | 2007 |
| 77 | [Creative Agency](https://www.tamtam.ai/c/creative-agency) (me.uk)<br>This company specializes in connecting businesses with freelance graphic designers and other experts to meet their specific design needs and timeline | Design Services | 🇬🇧 London | 1,122 |  |
| 78 | [Household](https://www.tamtam.ai/c/household) (household-design.com)<br>A global agency specializing in brand, experience, and retail innovation with a focus on creativity and high ethical standards | Design Services | 🇬🇧 London | 1,119 | 2004 |
| 79 | [Smart Design](https://www.tamtam.ai/c/smart-design) (smartdesignworldwide.com)<br>A strategic design company helping people live better and work smarter by humanizing products, services, and experiences through deep research and design strategies | Design Services | 🇺🇸 Brooklyn | 1,108 | 1980 |
| 80 | [Henderson Engineers](https://www.tamtam.ai/c/henderson-engineers) (hendersonengineers.com)<br>A national building systems design firm offering engineering services in various markets, known for people-first culture, technical excellence, and innovative designs | Design Services | 🇺🇸 Lenexa | 1,107 | 1970 |
| 81 | [GHENOVA](https://www.tamtam.ai/c/ghenova) (ghenova.com)<br>International engineering company offering multidisciplinary services in naval, defense, energy, digital transformation, and infrastructures with over 30 years of experience and 900 employees worldwide | Design Services | 🇪🇸 Seville | 1,072 | 2006 |
| 82 | [Superside](https://www.tamtam.ai/c/superside) (superside.com)<br>A leading Creative-as-a-Service company helping brands obtain design and creative work at scale for marketing, advertising, and branding needs | Design Services | 🇺🇸 Wilmington | 1,017 | 2015 |
| 83 | [NELSON Worldwide](https://www.tamtam.ai/c/nelson-worldwide) (nelsonworldwide.com)<br>An award-winning firm providing architecture, interior design, graphic design, and brand strategy services to transform the human experience and environments globally | Design Services | 🇺🇸 Minneapolis | 1,013 | 1977 |
| 84 | [Ware Malcomb](https://www.tamtam.ai/c/ware-malcomb) (waremalcomb.com)<br>A full-service design firm established in 1972, providing architecture, interior design, civil engineering, and branding services to clients worldwide | Design Services | 🇺🇸 International Design Firm | 1,004 | 1972 |
| 85 | [ACE Consulting Engineers Moharram.Bakhoum](https://www.tamtam.ai/c/ace-consulting-engineers-moharram-bakhoum) (ace-mb.com)<br>A multidisciplinary engineering consultancy with over 70 years of experience, specializing in planning, design, project management, and construction supervision worldwide | Design Services | 🇪🇬 Cairo | 971 | 1950 |
| 86 | [Prothious Engineering Services](https://www.tamtam.ai/c/prothious-engineering-services) (prothious.com)<br>Global provider of engineering, architecture, and construction services with expertise in industrial projects, 3D modeling, project management, and worldwide client base | Design Services | 🇮🇳 Mumbai | 962 |  |
| 87 | [ATÖLYE](https://www.tamtam.ai/c/atolye) (atolye.io)<br>Strategic design and innovation consultancy utilizing a community-powered approach to help organizations address complex challenges and achieve lasting impact | Design Services | 🇦🇪 Dubai | 961 | 2013 |
| 88 | [Waterworks](https://www.tamtam.ai/c/waterworks) (waterworks.com)<br>A company specializing in bath & kitchen products, offering expertise, service, and innovation with a rich heritage since 1925 Join for rewarding opportunities | Design Services | 🇺🇸 Danbury | 935 | 1978 |
| 89 | [Labor](https://www.tamtam.ai/c/labor) (trustlabor.com)<br>Labor is a creative team offering high-value design, strategy, writing, and interactive services to unite brands with customers and larger visions | Design Services | 🇺🇸 Minneapolis | 931 | 2010 |
| 90 | [Tétris](https://www.tamtam.ai/c/tetris) (tetris-db.com)<br>A design and build company passionate about creating vibrant, sustainable spaces that inspire better living and working, offering full service solutions globally | Design Services | 🇫🇷 Paris - La Défense | 924 |  |
| 91 | [dOma](https://www.tamtam.ai/c/doma) (doma.ag)<br>Helping brands identify their purpose and create relevant, desirable, and shareable products that resonate with consumers on various platforms | Design Services | 🇧🇷 Curitiba | 911 | 1996 |
| 92 | [WongDoody](https://www.tamtam.ai/c/wongdoody) (wongdoody.com)<br>Innovative global company creating human experiences, telling big stories, using design to save lives Award-winning culture rooted in Creative Democracy | Design Services | 🇺🇸 New York | 894 |  |
| 93 | [PROGER s.p.a.](https://www.tamtam.ai/c/proger-s-p-a) (proger.it)<br>An international company offering Italian engineering and management expertise in building, infrastructure, energy, oil & gas, sustainability, security with global presence | Design Services | 🇮🇹 Rome | 886 | 1951 |
| 94 | [Freelance Graphic Designer](https://www.tamtam.ai/c/freelance-graphic-designer-london) (freelancehubs.com)<br>The company offers freelance services in logo design, branding consulting, web design (CSS expertise), and graphic design to clients | Design Services | 🇬🇧 London | 883 |  |
| 95 | [Brandinglo](https://www.tamtam.ai/c/brandinglo) (brandinglo.com)<br>The company provides career opportunities in various industries, offering permanent and temporary roles, career advice, training, and placements from support roles to IT Director | Design Services | 🇬🇧 London | 881 |  |
| 96 | [CASA DECOR](https://www.tamtam.ai/c/casa-decor) (casadecor.es)<br>A unique interior design exhibition in Madrid, held annually in a different location, showcasing over 200 professionals and companies in the habitat sector | Design Services | 🇪🇸 Madrid | 873 | 1992 |
| 97 | [GBA](https://www.tamtam.ai/c/gba-lenexa) (gbateam.com)<br>Innovative approach to architectural, engineering, construction, and technology services with affiliate partners, serving various markets and clients nationwide Headquarters in Kansas | Design Services | 🇺🇸 Lenexa | 851 | 1969 |
| 98 | [Syska Hennessy Group](https://www.tamtam.ai/c/syska-hennessy-group) (syska.com)<br>Innovative consulting, engineering, and commissioning solutions for the built environment using cutting-edge technology to create exceptional and high-performance buildings worldwide | Design Services | 🇺🇸 New York | 844 | 1928 |
| 99 | [Smith Seckman Reid, Inc.](https://www.tamtam.ai/c/smith-seckman-reid-inc) (ssr-inc.com)<br>An employee-owned engineering and consulting firm specializing in providing solutions for engineering, commissioning, sustainability, technology, and equipment planning | Design Services | 🇺🇸 Nashville | 842 | 1968 |
| 100 | [Coffman Engineers](https://www.tamtam.ai/c/coffman-engineers) (coffman.com)<br>A multidisciplinary engineering firm offering services in commercial, retail, government, industrial, and project management sectors with a reputation for innovation and teamwork | Design Services | 🇺🇸 Seattle | 842 | 1979 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

## More company lists in the world

- [The largest companies in the world](https://www.tamtam.ai/l/largest-companies-in-the-world) (415,122)
- [Multinational companies in the world](https://www.tamtam.ai/l/multinational-companies-in-the-world) (74,925)
- [Manufacturers in the world](https://www.tamtam.ai/l/manufacturers-in-the-world) (39,579)
- [Retail chains in the world](https://www.tamtam.ai/l/retail-chains-in-the-world) (35,499)
- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Financial services firms in the world](https://www.tamtam.ai/l/financial-services-firms-in-the-world) (26,817)
- [Professional services firms in the world](https://www.tamtam.ai/l/professional-services-firms-in-the-world) (24,737)
- [Education providers in the world](https://www.tamtam.ai/l/education-companies-in-the-world) (23,937)
- [IT Services and IT Consulting companies in the world](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-the-world) (23,571)
- [Critical infrastructure operators in the world](https://www.tamtam.ai/l/critical-infrastructure-operators-in-the-world) (23,312)
- [SaaS companies in the world](https://www.tamtam.ai/l/saas-companies-in-the-world) (22,459)
- [IT services companies in the world](https://www.tamtam.ai/l/it-services-companies-in-the-world) (20,934)
- [Software Development companies in the world](https://www.tamtam.ai/l/software-development-companies-in-the-world) (20,534)
- [Hardware manufacturers in the world](https://www.tamtam.ai/l/hardware-companies-in-the-world) (20,159)
- [Financial Services companies in the world](https://www.tamtam.ai/l/financial-services-companies-in-the-world) (19,958)
- [Companies with a mobile app in the world](https://www.tamtam.ai/l/companies-with-mobile-app-in-the-world) (18,922)
- [Public sector organisations in the world](https://www.tamtam.ai/l/public-sector-organisations-in-the-world) (18,493)
- [Healthcare providers in the world](https://www.tamtam.ai/l/healthcare-providers-in-the-world) (16,037)
- [Consulting firms in the world](https://www.tamtam.ai/l/consulting-firms-in-the-world) (16,009)
- [Family-owned companies in the world](https://www.tamtam.ai/l/family-owned-companies-in-the-world) (14,667)
- [Distributors and wholesalers in the world](https://www.tamtam.ai/l/distributors-and-wholesalers-in-the-world) (13,470)
- [Hospitals and Health Care companies in the world](https://www.tamtam.ai/l/hospitals-and-health-care-companies-in-the-world) (12,916)
- [Corporate groups and holding companies in the world](https://www.tamtam.ai/l/holding-companies-in-the-world) (12,864)
- [E-commerce companies in the world](https://www.tamtam.ai/l/ecommerce-companies-in-the-world) (12,013)

## The same list elsewhere

- [Design Services companies in Europe](https://www.tamtam.ai/l/design-services-companies-in-europe) (830)
- [Design Services companies in the United States](https://www.tamtam.ai/l/design-services-companies-united-states) (486)
- [Design Services companies in France](https://www.tamtam.ai/l/design-services-companies-france) (440)
- [Design Services companies in the United Kingdom](https://www.tamtam.ai/l/design-services-companies-united-kingdom) (175)
- [Design Services companies in Asia](https://www.tamtam.ai/l/design-services-companies-in-asia) (72)
- [Design Services companies in Canada](https://www.tamtam.ai/l/design-services-companies-canada) (41)
- [Design Services companies in India](https://www.tamtam.ai/l/design-services-companies-india) (41)
- [Design Services companies in Spain](https://www.tamtam.ai/l/design-services-companies-spain) (33)
- [Design Services companies in the Netherlands](https://www.tamtam.ai/l/design-services-companies-netherlands) (32)
- [Design Services companies in Italy](https://www.tamtam.ai/l/design-services-companies-italy) (31)
- [Design Services companies in Belgium](https://www.tamtam.ai/l/design-services-companies-belgium) (26)
- [Design Services companies in Latin America](https://www.tamtam.ai/l/design-services-companies-in-latin-america) (26)
- [Design Services companies in Australia](https://www.tamtam.ai/l/design-services-companies-australia) (25)

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Source: https://www.tamtam.ai/l/design-services-companies-in-the-world