This selection features large engineering services companies from various global locations. These firms specialize in providing comprehensive engineering, R&D, and technology solutions across diverse industries, often with a focus on sustainability and digital transformation. The companies listed are generally large groups, many with tens of thousands of employees.
Key companies include AtkinsRéalis, a global professional services organization focused on sustainable infrastructure, and Capgemini Engineering, which offers engineering R&D services. Saipem is a global leader in engineering and construction for energy and infrastructure projects, while ALTEN provides engineering and IT services for technological transformation. Technip Energies focuses on energy engineering and technology for LNG, hydrogen, and CO2 management, and Ramboll delivers sustainable solutions in architecture, engineering, and consultancy.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
AtkinsRéalisatkinsrealis.com
Global professional services organization specializing in sustainable infrastructure solutions, integrating people, data, and technology across the asset lifecycle in key strategic sectors |
48,091 | |||
| 2 |
Capgemini Engineeringcapgemini.com
Engineering R&D services, combining broad industry knowledge and cutting-edge digital and software technologies to accelerate clients' journey towards Intelligent Industry. |
44,836 | |||
| 3 |
L&T Technology Servicesltts.com
Provides engineering and technology services globally, supporting product design, development, and delivery across diverse industries with innovation. |
41,420 | |||
| 4 | 38,710 | ||||
| 5 |
Saipemsaipem.com
Global leader in engineering and construction for energy and infrastructure projects worldwide, offering offshore and onshore services with a focus on sustainability and innovation |
32,000 | |||
| 6 |
Quest Globalquestglobal.com
Provides comprehensive engineering solutions across multiple industries, leveraging global expertise and digital technologies to solve complex challenges. |
21,161 | |||
| 7 |
Cyientcyient.com
This company partners with global innovators to deliver engineering and technology solutions for a digital, autonomous, and sustainable future |
20,539 | |||
| 8 | 19,737 | ||||
| 9 |
Technip Energiesten.com
Leading energy engineering & technology company focused on LNG, hydrogen, ethylene, sustainable chemistry, and CO2 management Committed to accelerating the energy transition globally |
18,645 | |||
| 10 |
Rambollramboll.com
Global company offering sustainable solutions in architecture, engineering, and consultancy across various sectors to create sustainable cities and societies worldwide |
18,506 | |||
| 11 |
Tata Technologiestatatechnologies.com
Global product engineering and digital services company enabling manufacturing businesses to develop safer, cleaner, and better products across multiple industries. |
17,255 | |||
| 12 |
Petrofacpetrofac.com
International energy service provider specializing in designing, building, managing, and maintaining oil, gas, refining, and renewable energy infrastructure for leading energy companies worldwide |
14,616 | |||
| 13 |
Tecnicas Reunidastecnicasreunidas.es
An international general contractor specializing in engineering and construction of industrial facilities in oil & gas, refining, power generation, infrastructures, and energy transition |
12,368 | |||
| 14 |
Black & Veatchbv.com
An employee-owned global leader in building critical human infrastructure in Energy, Water, Telecommunications, and Government Services since 1915 |
11,691 | |||
| 15 |
UGLugllimited.com
Specialist provider of engineering, services, and operations across transport, energy, infrastructure, defence, telecommunications, and technology sectors in Australia. |
11,677 | |||
| 16 |
SEGULA Technologiessegulatechnologies.com
Provides global engineering services across major industrial sectors, committed to innovation, from research to industrialization and production. |
11,442 | |||
| 17 |
Kimley-Hornkimley-horn.com
providing comprehensive planning and design consulting services across multiple disciplines with a client-focused approach and recognized workplace quality |
10,392 | |||
| 18 |
SYSTRAsystra.com
Leading engineering and consultancy group specializing in public transport and mobility solutions, connecting people and regions through transport infrastructure development. |
10,162 | |||
| 19 |
Atkinsatkinsrealis.com
World-class engineering services and nuclear organization connecting people, data, and technology to transform global infrastructure and energy systems through design and management. |
9,798 | |||
| 20 |
Kentkentplc.com
Design, build, maintain energy assets with consulting, commissioning, start-up, maintenance, decommissioning services for innovative, future-ready energy solutions worldwide. |
9,280 | |||
| 21 |
Aureconaurecongroup.com
Design, engineering, and advisory company focusing on creating a better future through innovative solutions across various markets and asset types |
8,800 | |||
| 22 |
EDAG Groupedag.com
Engineering service provider for mobility, defense, industry, and public solutions, developing complex products, systems, and production solutions with an interdisciplinary team. |
8,500 | |||
| 23 | 8,200 | ||||
| 24 |
Bertrandt Groupbertrandt.com
International development service provider specializing in automotive, aerospace, and mechanical engineering Focus on digitalization, e-mobility, and autonomous systems Accelerating technological progress with 14,000 employees globally |
7,532 | |||
| 25 |
SMEC (an SJ Group company)smec.com
Global engineering consultancy specializing in urban development, infrastructure, and management services Providing design leadership and advisory services across various sectors |
7,311 | |||
| 26 |
TRACTEBELtractebel-engie.com
Provides integrated solutions for sustainable energy and built environment projects, offering expertise in nuclear, renewables, power, grids, infrastructure, and water resources. |
7,185 | |||
| 27 |
Descondescon.com
A leading multinational conglomerate in engineering, chemical, and power sectors, offering industrial process equipment, power plant operations, and vocational training programs |
7,023 | |||
| 28 |
IDOM Consulting, Engineering, Architectureidom.com
A multinational consulting, engineering, and architecture firm offering personalized client services, delivering independent, impartial global projects with a diverse, engaged workforce |
5,424 | |||
| 29 |
Sterling and Wilsonsterlingandwilson.com
A multinational EPC solutions provider operating in 30 countries, specializing in Data Centers, Renewable Energy, MEP-IEPC, Transmission & Distribution, and more |
5,241 | |||
| 30 |
Mammoetmammoet.com
Global company offering lifting, transporting, installing, and decommissioning solutions for a wide range of projects with a focus on efficiency and safety |
5,183 | |||
| 31 |
FieldCorefieldcore.com
Global energy company specializing in power, wind, and electrification solutions, supported by advanced research, consulting, and financial services for a lower carbon future |
4,952 | |||
| 32 |
Senergroup.sener
Responds to demanding challenges with innovative, efficient solutions, advancing society across aerospace, defense, energy, mobility, data centers, and digital sectors for 70 years. |
4,878 | |||
| 33 |
JESA S.Ajesagroup.com
Global provider of phosphate technology and engineering solutions, serving mining, industry, energy, water, infrastructure, and urban development sectors. |
4,549 | |||
| 34 |
Prinerpriner.com.br
Specializing in industrial maintenance and infrastructure services, including access, industrial painting, thermal insulation, surface treatment, and structural recovery with innovative solutions and technical excellence |
4,113 | |||
| 35 |
Engemanengeman.net
Established in 1983, specialized in developing solutions for various industry sectors, focusing on maintenance and operation of industrial equipment and components |
4,030 | |||
| 36 |
FERCHAUferchau.com
Leading European platform for top technology services, specializing in developing future-centric solutions across various technical sectors with bright minds |
4,019 | |||
| 37 |
Cocacola Nowyahoo.com
Lorem Ipsum provides standard dummy text for printing and typesetting, surviving for centuries and adapting to electronic and digital publishing |
3,968 | |||
| 38 |
MAIREgroupmaire.com
A technology and engineering group focused on enabling the Energy Transition, offering Sustainable Technology and E&C Solutions in various sectors worldwide |
3,897 | |||
| 39 |
Heerema Marine Contractorsheerema.com
A global marine contractor specializing in offshore energy projects, known for expertise and innovation within the industry |
3,796 | |||
| 40 | 3,633 | ||||
| 41 |
Estruturalestruturalrs.com.br
Specializing in industrial construction, assembly, and maintenance for oil, gas, pulp, and paper industries with extensive experience and credibility in the Brazilian market |
3,583 | |||
| 42 |
دار الرياض | Dar Al Riyadhdaralriyadh.com
Leading engineering consultancy providing advisory, design, construction management, and project management services across diverse Saudi industries. |
3,565 | |||
| 43 | 3,539 | ||||
| 44 |
SPIE Nederlandspie-nl.com
Leading in multi-technical services for energy and communication, guiding clients in design, execution, operation, and maintenance of various systems and installations |
3,475 | |||
| 45 |
POWER Engineerswsp.com
Global engineering firm providing integrated solutions for energy, food and beverage, facilities, communications, environmental, and federal markets with multidiscipline services |
3,392 | |||
| 46 | 3,390 | ||||
| 47 |
PRIME GROUPweareprimegroup.com
A leading international IT consulting and engineering group with 12 companies, 3100 professionals, and offices across Europe, focusing on consultancy, nearshore, and software development |
3,359 | |||
| 48 |
ILF Consulting Engineersilf.com
Engineering and consulting firm providing technical expertise for industrial and infrastructure projects across energy, water, transportation, and sustainable industries worldwide. |
3,272 | |||
| 49 |
Allseasallseas.com
A world-leading contractor in offshore energy, specializing in pipeline installation, heavy lift, deep-ocean polymetallic nodule collection, and river waste collection, pushing boundaries with innovative technology |
3,023 | |||
| 50 |
Bilfinger Engineeringbilfinger.com
Multidisciplinary engineering consultancy offering future-proof and sustainable solutions for industrial projects across various markets with a focus on project management and procurement |
2,973 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 51 |
Dewberrydewberry.com
A market-leading firm providing professional services to public and private sector clients, solving complex challenges, and transforming communities through innovation and expertise |
2,914 | |||
| 52 |
Rejlersrejlers.com
A leading Nordic engineering consultancy firm providing expertise to help organizations meet societal challenges and build a sustainable future through continuous learning and development |
2,910 | |||
| 53 | 2,900 | ||||
| 54 |
Ricardoricardo.com
Global consulting firm providing strategic, environmental, and engineering solutions focused on transport, energy, and climate for sustainability. |
2,888 | |||
| 55 | 2,755 | ||||
| 56 |
Bilfinger UKbilfinger.com
A leading engineering and maintenance provider with 4,000 employees in the UK, part of Europe's largest industrial services group |
2,688 | |||
| 57 |
Scientific Research Corporationscires.com
An engineering company founded in 1988, providing innovative solutions to US Government, private industry, and international markets with focus on information, communications, intelligence, and more |
2,534 | |||
| 58 |
Normatel Engenharianormatelengenharia.com.br
Established in 1977, this engineering firm offers quality and interactive services in various construction sectors, emphasizing ethical and social responsibility |
2,485 | |||
| 59 | 2,436 | ||||
| 60 |
UESteamues.com
A nationwide provider of engineering, environmental, testing, and inspection services, specializing in sustainable infrastructure solutions for public and private clients across various industries |
2,428 | |||
| 61 |
FORCE Technologyforcetechnology.com
Technology consultancy providing testing, calibration, analysis, sensor systems, and training to support sustainable and safe technological advancements for companies. |
2,372 | |||
| 62 |
Kentz - now a part of Kentkentplc.com
Design, build, commission, maintain, and decommission energy infrastructure with integrated services, focusing on innovative and future-ready energy solutions worldwide. |
2,350 | |||
| 63 |
Salas O'Briensalasobrien.com
Employee-owned engineering firm focused on advancing the human experience through the built environment Top-ranked, with a strong emphasis on impact and sustainability |
2,295 | |||
| 64 |
Olssonolsson.com
An employee-owned engineering and design firm focused on improving communities through sustainable, connected, and efficient projects, driven by inspired people and purposeful designs |
2,270 | |||
| 65 |
Ingéropingerop.fr
An independent engineering company with expertise in infrastructure, transportation, water, environment, energy, and industrial facilities in over 70 countries |
2,268 | |||
| 66 |
Hinduja Tech Limitedhindujatech.com
Global engineering solution provider specializing in disruptive mobility, electric and autonomous vehicles, with a focus on automotive product development and digital technologies worldwide |
2,238 | |||
| 67 |
Bowman Consultingbowman.com
A national engineering services provider delivering infrastructure solutions to customers in various regulated end markets, with expertise in planning, engineering, and environmental consulting |
2,221 | |||
| 68 |
TRIPATRAtripatra.com
A leading Indonesian EPC provider offering engineering, procurement, construction, and maintenance services for projects in oil & gas, petrochemical, and renewable energy sectors |
2,213 | |||
| 69 |
Abylsenabylsen.com
A company that values collective intelligence and encourages exploring new possibilities to create infinite value in various directions |
2,163 | |||
| 70 |
Core States Groupcore-states.com
A collaborative team offering architecture, interior design, engineering, program management, and construction solutions nationwide, focused on facilitating a remarkable customer experience |
2,134 | |||
| 71 |
AXISCADESaxiscades.com
Offers technology solutions in embedded systems, digital engineering, and automation for aerospace, defense, and heavy engineering, empowering global OEMs with innovative products. |
2,098 | |||
| 72 | 2,022 | ||||
| 73 |
Neilsoftneilsoft.com
A global engineering services company specializing in enhancing project efficiency, technology adoption, and digital transformation for clients in construction and manufacturing industries worldwide |
2,018 | |||
| 74 |
Englobeenglobecorp.com
A leader in engineering, geosciences, environmental management, and quality services with 50+ years of experience, focused on employee safety and sustainability |
1,980 | |||
| 75 |
Edvanceedvance.fr
Designs and implements nuclear islands and control commands for nuclear reactors under construction, domestically and internationally. |
1,943 | |||
| 76 |
Cavendish Nuclearcavendishnuclear.com
A leading nuclear services provider with international presence, specializing in innovative solutions across the nuclear energy life cycle |
1,908 | |||
| 77 | 1,877 | ||||
| 78 | 1,732 | ||||
| 79 |
Pinnaclepinnaclereliability.com
A company based in Pasadena, focused on helping industrial facilities in oil and gas, chemical, mining, and water industries optimize data for improved performance |
1,701 | |||
| 80 |
MosChip®moschip.com
A fabless semiconductor and system design company with 20 years of experience, specializing in ASICs, Mixed Signal IP, and IoT solutions for various industries |
1,696 | |||
| 81 |
ABLabl-group.com
Global independent energy and marine consultant de-risking and driving energy transition, offering expertise in renewables, maritime, and oil and gas sectors worldwide |
1,687 | |||
| 82 |
TKIL Industries (Formerly known as thyssenkrupp Industries India)tkil.com
Design, manufacture, supply, construct, and maintain industrial plants and systems across mining, cement, energy, green hydrogen, boilers, sugar, and bio-chemical industries. |
1,685 | |||
| 83 |
Audubon Companiesauduboncompanies.com
A leading provider of EPC, consulting, fabrication, and technical services for energy, chemicals, power, infrastructure, and industrial markets with a focus on sustainability |
1,680 | |||
| 84 |
INGETECingetec.com.co
Specialized professionals in various divisions such as water resources, environmental, structural, and transportation providing expertise in hydroelectric projects, transmission lines, and environmental studies |
1,678 | |||
| 85 |
BW Design Groupbwdesigngroup.com
This company is a fully integrated engineering, architecture, construction, and consulting firm serving leading companies with customized solutions |
1,676 | |||
| 86 |
ASM Technologies Ltdasmltd.com
A leading provider of engineering and technological services, specializing in product development across various industries with a focus on global standards and collaborative solutions |
1,676 | |||
| 87 |
Qualusqualuscorp.com
Innovative power services firm specializing in grid modernization, resiliency, sustainability, and software solutions for utilities, commercial, industrial, and government clients |
1,668 | |||
| 88 |
Westwood Professional Serviceswestwoodps.com
A dedicated team with over 50 years of experience creating a better world through energy grid transformation, resilient infrastructure design, and community development |
1,660 | |||
| 89 |
SSOE Groupssoe.com
Internationally recognized architecture and engineering firm specializing in providing high-quality project solutions for various industries with global reach |
1,634 | |||
| 90 |
Fichtnerfichtner.de
The company is an independent engineering and consultancy firm specializing in energy, infrastructure, renewable energies, environmental protection, water resources, and IT consultancy worldwide |
1,612 | |||
| 91 |
Porsche Engineeringporscheengineering.com
Develops a wide range of engineering solutions for the automotive industry and beyond, including individual components, complex modules, and complete development implementation. |
1,563 | |||
| 92 |
Altrad Babcockaltradbabcock.com
Specialists in construction, aftermarket, and upgrade services for thermal power, nuclear, oil & gas, petrochemical, and process sectors worldwide |
1,546 | |||
| 93 |
MCM Engenharia Industrialmcmmontagens.com.br
Specializing in construction and assembly services, we provide efficient solutions for various projects with a focus on quality and precision |
1,495 | |||
| 94 |
Endicon Engenhariaendicon.com.br
Engineering technology solutions provider with over 30 national and international patents, specializing in electrical engineering services and products with a strong track record since 1975 |
1,493 | |||
| 95 | 1,469 | ||||
| 96 |
Cetim - Centre technique des industries mécaniquescetim.fr
Providing consulting, engineering, and R&D services to manufacturers worldwide, enhancing digital, efficient, and sustainable industrial solutions. |
1,450 | |||
| 97 | 1,439 | ||||
| 98 | 1,423 | ||||
| 99 |
BKW Engineeringbkw-engineering.com
The largest network of independent engineering, architecture, and testing companies in the DACH region, providing specialized expertise for sustainable infrastructure and buildings |
1,369 | |||
| 100 |
Walter P Moorewalterpmoore.com
A team of engineers and innovators designing high-performance structures and infrastructure globally, providing cost-efficient solutions that shape communities worldwide |
1,340 | |||
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