# List of consulting firms in Denmark

Tamtam tracks 107 consulting firms headquartered in Denmark. This list ranks the 50 largest by number of employees on LinkedIn, led by Ramboll, COWI and Netcompany. Their median headcount is 823. Half of them were founded in 1991 or later. The most common headquarters are Copenhagen (14) and Aalborg (3).

These Danish consulting firms are primarily large and mid-sized companies, with a strong presence in engineering, IT services, and civil engineering. Ramboll, founded in 1945, is a global company focused on sustainable solutions in architecture, engineering, and consultancy. COWI, established in 1930, also creates sustainable solutions through engineering and architecture. Netcompany provides agile IT consulting and digital transformation services, while NIRAS focuses on infrastructure projects and urban planning.

The data shows a concentration of headquarters in the Copenhagen area, including Lyngby, Allerød, Taastrup, Virum, and Søborg. This indicates a geographical cluster around the capital for these large consulting operations. The companies listed cover a broad spectrum of consulting, from highly technical engineering and IT to business and design services.

🇩🇰 Denmark · 50 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Ramboll](https://www.tamtam.ai/c/ramboll) (ramboll.com)<br>Global company offering sustainable solutions in architecture, engineering, and consultancy across various sectors to create sustainable cities and societies worldwide | Engineering Services | 🇩🇰 Copenhagen | 18,506 | 1945 |
| 2 | [COWI](https://www.tamtam.ai/c/cowi) (cowi.com)<br>The company creates sustainable solutions with a focus on improving quality of life for present and future generations through engineering and architecture expertise | Civil Engineering | 🇩🇰 Lyngby | 8,647 | 1930 |
| 3 | [Netcompany](https://www.tamtam.ai/c/netcompany) (netcompany.com)<br>Providing agile IT consulting and digital transformation services, delivering scalable, modern technology solutions for large Northern European clients. | IT Services and IT Consulting | 🇩🇰 Copenhagen | 8,266 | 2000 |
| 4 | [NIRAS](https://www.tamtam.ai/c/niras) (niras.com)<br>Global consulting firm shaping tomorrow's communities through infrastructure projects, urban planning, and sustainable development initiatives around the world | Civil Engineering | 🇩🇰 Allerød | 3,794 | 1956 |
| 5 | [Atos IT Solutions and Services A/S](https://www.tamtam.ai/c/atos-it-solutions-and-services-a-s) (atos.net)<br>An international IT service provider offering high-tech transaction, consulting, system integration, and outsourcing services to a global customer base across various industries | IT Services and IT Consulting | 🇩🇰 Taastrup | 3,772 | 2011 |
| 6 | [NNE](https://www.tamtam.ai/c/nne) (nne.com)<br>Designs, builds, optimizes pharma manufacturing facilities globally, essential for patient health. Employs over 2,000 across Denmark, India, US. | Engineering Services | 🇩🇰 Virum | 3,539 | 1991 |
| 7 | [MOE Denmark](https://www.tamtam.ai/c/moe-denmark) (arteliagroup.dk)<br>The company offers services under the name Artelia and operates in Denmark Check their LinkedIn profile for more information | Civil Engineering | 🇩🇰 Søborg | 2,916 |  |
| 8 | [Columbus](https://www.tamtam.ai/c/columbus) (columbusglobal.com)<br>A global IT services and consulting company offering digital transformation solutions for various industries, with extensive experience and a customer-centric approach | IT Services and IT Consulting | 🇩🇰 Copenhagen | 2,496 |  |
| 9 | [FORCE Technology](https://www.tamtam.ai/c/force-technology) (forcetechnology.com)<br>Technology consultancy providing testing, calibration, analysis, sensor systems, and training to support sustainable and safe technological advancements for companies. | Engineering Services | 🇩🇰 Brøndby | 2,372 | 1940 |
| 10 | [emagine](https://www.tamtam.ai/c/emagine) (emagine.org)<br>Providing tailored IT consulting services including team extension, nearshoring, dedicated teams, and managed services for diverse industries. | IT Services and IT Consulting | 🇩🇰 Copenhagen | 2,182 | 1989 |
| 11 | [Implement Consulting Group](https://www.tamtam.ai/c/implement-consulting-group) (implementconsultinggroup.com)<br>Company helps organizations with transformation and functional expertise. Focus on human-centric change, agile teams, and client collaboration for competitive, adaptable, sustainable, and innovative results. | Business Consulting and Services | 🇩🇰 Hellerup | 2,007 | 1996 |
| 12 | [DHI](https://www.tamtam.ai/c/dhi) (dhigroup.com)<br>The company specializes in water management, climate change adaptation, water quality improvement, and offering sustainable solutions for the global water industry | Environmental Services | 🇩🇰 Hørsholm | 1,794 | 1964 |
| 13 | [Beierholm](https://www.tamtam.ai/c/beierholm) (beierholm.dk)<br>auditing and consulting services for small and medium-sized companies, specializing in finance, tax, investment, business development, and sustainability | Accounting | 🇩🇰 Aalborg | 1,774 |  |
| 14 | [PwC Danmark](https://www.tamtam.ai/c/pwc-danmark) (pwc.dk)<br>Providing audit, tax, and advisory services to businesses and public sector clients, focusing on trust and solving key challenges. | Business Consulting and Services | 🇩🇰 Danmark | 1,738 |  |
| 15 | [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 |  |
| 16 | [NNIT](https://www.tamtam.ai/c/nnit) (nnit.com)<br>An international IT service provider offering consultancy, development, implementation, and outsourcing of IT services to private companies and public sector organizations | IT Services and IT Consulting | 🇩🇰 Copenhagen | 1,636 | 1994 |
| 17 | [Sweco Danmark A/S](https://www.tamtam.ai/c/sweco-danmark-a-s) (sweco.dk)<br>Sweco plans and designs sustainable buildings, efficient infrastructure, and clean water access worldwide, with 15,000 employees offering expertise for diverse projects | Civil Engineering | 🇩🇰 Amager Vest | 1,284 |  |
| 18 | [Artelia Denmark](https://www.tamtam.ai/c/artelia-denmark) (arteliagroup.dk)<br>Large multidisciplinary consulting engineering company, specializing in building construction, infrastructure, water, industry, energy. Part of an international group with global presence. | Civil Engineering | 🇩🇰 Søborg | 1,278 |  |
| 19 | [Ramboll Management Consulting](https://www.tamtam.ai/c/ramboll-management-consulting) (ramboll.com)<br>Empowering sustainable change through multi-disciplined management consultancy, addressing global megatrends like digitalisation, climate change, and sustainability with a Nordic heritage. | Business Consulting and Services | 🇩🇰 2300 Copenhagen S | 1,300 | 1968 |
| 20 | [BDO Danmark](https://www.tamtam.ai/c/bdo-danmark) (bdo.dk)<br>The company is a Danish-owned and operated advisory firm, part of the global BDO network, providing auditing, accounting, and consulting services to businesses for growth and development | Accounting | 🇩🇰 Aarhus | 1,227 | 1903 |
| 21 | [DELTA - a part of FORCE Technology](https://www.tamtam.ai/c/delta-a-part-of-force-technology) (madebydelta.com)<br>An independent technology company providing accessible information, advanced technology services, product development support, testing, certification, and sustainable solutions since 1941 | Engineering Services | 🇩🇰 Hørsholm | 1,086 |  |
| 22 | [Teach](https://www.tamtam.ai/c/teach) (teach.dk)<br>The company focuses on continuous school development by collaborating with teachers, educators, school leaders, and municipalities, emphasizing partnerships and cooperation | Education Administration Programs | 🇩🇰 Silkeborg | 1,028 |  |
| 23 | [VML MAP](https://www.tamtam.ai/c/vml-map) (vml-map.com)<br>Global team specializing in Marketing Automation, Personalization, Loyalty, and CRM, crafting personalized content to create connections between brands and consumers worldwide | Business Consulting and Services | 🇩🇰 Copenhagen | 929 |  |
| 24 | [7N](https://www.tamtam.ai/c/7n) (7n.com)<br>Providing IT consulting services, supporting clients with sourcing of IT consultants, end-to-end solutions, and professional learning. Enabling digital transformation across the IT project life cycle. | IT Services and IT Consulting | 🇩🇰 Copenhagen | 920 | 1965 |
| 25 | [Init](https://www.tamtam.ai/c/init) (initgroup.com)<br>Uniting top companies and professionals in Industrial IT and automation across multiple European countries with around 800 employees. | Software Development | 🇩🇰 Gladsaxe | 823 | 2022 |
| 26 | [Maersk Training](https://www.tamtam.ai/c/maersk-training) (maersktraining.com)<br>Global training provider focused on improving safety, behavior, and operational performance through real-life scenarios and advanced simulation technology | Professional Training and Coaching | 🇩🇰 Svendborg | 794 | 1978 |
| 27 | [AlfaPeople](https://www.tamtam.ai/c/alfapeople) (alfapeople.com)<br>A global leader in Microsoft Dynamics 365 consulting, offering tailored CRM and ERP solutions to drive growth and customer satisfaction worldwide | IT Services and IT Consulting | 🇩🇰 København SV | 726 | 2009 |
| 28 | [NIRAS International Consulting](https://www.tamtam.ai/c/niras-international-consulting) (niras.com)<br>International consultancy providing technical assistance and project management for development programs worldwide with a large network of experts | Business Consulting and Services | 🇩🇰 Copenhagen | 704 | 1956 |
| 29 | [WSP Danmark](https://www.tamtam.ai/c/wsp-danmark) (wsp.com)<br>Leading professional services consulting firm shaping built and natural environments for future generations through innovative solutions and sustainable practices | Professional Services | 🇩🇰 Høje Taastrup | 638 | 1885 |
| 30 | [Grant Thornton Denmark](https://www.tamtam.ai/c/grant-thornton-denmark) (grantthornton.dk)<br>A Danish-owned accounting and consulting firm with almost 600 employees offering auditing, accounting, and advisory services to a diverse client portfolio | Accounting | 🇩🇰 2100 København Ø | 581 | 2011 |
| 31 | [KPMG Denmark](https://www.tamtam.ai/c/kpmg-denmark) (kpmg.com)<br>Deliver audit, tax, and advisory services using technology to empower clients, drive transformation, and add value to businesses and society. | Business Consulting and Services | 🇩🇰 | 570 | 2014 |
| 32 | [CfL - Bedre ledere. Bedre resultater.](https://www.tamtam.ai/c/cfl-bedre-ledere-bedre-resultater) (cfl.dk)<br>A leadership center in Denmark offering a full range of services to develop leaders and organizations, focused on improving leadership quality | Business Consulting and Services | 🇩🇰 Copenhagen | 517 |  |
| 33 | [Geo](https://www.tamtam.ai/c/geo) (geo.dk)<br>Market-leading engineering consultancy specializing in geotechnical and environmental engineering Services include onshore/offshore consultancy, laboratory tests, drilling, and various specialized projects globally | Civil Engineering | 🇩🇰 Kgs. Lyngby (Copenhagen) | 486 | 1943 |
| 34 | [DIS - CREADIS Engineering Solutions & Consulting](https://www.tamtam.ai/c/dis-creadis-engineering-solutions-and-consulting) (creadis.com)<br>Provides integrated engineering solutions across mechanical, software, hardware, electrical, and automation for global technology leaders, optimizing and sustaining technical challenges. | Industrial Machinery Manufacturing | 🇩🇰 Skanderborg | 448 | 1997 |
| 35 | [IMPACT Commerce](https://www.tamtam.ai/c/impact-commerce) (impactcommerce.com)<br>Impact is a digital commerce agency focused on building omnichannel solutions through strategy, design, tech, and optimization to fuel meaningful growth | Technology, Information and Internet | 🇩🇰 Copenhagen | 437 |  |
| 36 | [bro](https://www.tamtam.ai/c/bro) (wearebro.dk)<br>The company specializes in combining communication, organizational development, and behavioral design to create effective solutions that influence people's behavior | Public Relations and Communications Services | 🇩🇰 Copenhagen | 424 | 1999 |
| 37 | [Basico](https://www.tamtam.ai/c/basico) (basico.dk)<br>The company offers a diverse range of consultancy services in areas such as finance, legal, facility management, and HR support | Business Consulting and Services | 🇩🇰 Hellerup | 423 | 2003 |
| 38 | [O'Brien & Gere (OBG)](https://www.tamtam.ai/c/o-brien-and-gere-obg) (ramboll.com)<br>A company specializing in engineering, design, and consultancy joined forces with a larger organization to enhance expertise and provide innovative solutions globally | Civil Engineering | 🇩🇰 Copenhagen | 422 | 1945 |
| 39 | [Velas](https://www.tamtam.ai/c/velas) (velas.dk)<br>Denmark's leading agricultural advisory firm offering tailored guidance and expert support across all aspects of farming, from crops and livestock to finances and legal matters | Business Consulting and Services | 🇩🇰 Hinnerup | 420 |  |
| 40 | [Domea.dk](https://www.tamtam.ai/c/domea-dk) (domea.dk)<br>A leading Danish company in building and property management of public housing, offering services to 100 housing organizations with 53,000 units | Non-profit Organizations | 🇩🇰 Høje Taastrup | 401 | 2005 |
| 41 | [ENABL A/S](https://www.tamtam.ai/c/enabl-a-s) (enabl-wind.com)<br>ENABL is a global partner in the wind industry, providing specialized engineering services and turnkey solutions to enhance efficiency and productivity for renewable companies worldwide | Mechanical Or Industrial Engineering | 🇩🇰 Hedensted | 395 | 2021 |
| 42 | [Redmark – Mærkbar forskel](https://www.tamtam.ai/c/redmark-maerkbar-forskel) (redmark.dk)<br>One of Denmark's largest advisory and auditing firms, providing comprehensive services to owner-managed businesses with national coverage and a team of over 400 employees | Accounting | 🇩🇰 Aalborg | 382 |  |
| 43 | [Preferred by Nature](https://www.tamtam.ai/c/preferred-by-nature) (preferredbynature.org)<br>International non-profit supporting sustainable land management and business practices through certification, awareness projects, and capacity building worldwide. | Non-profit Organizations | 🇩🇰 Copenhagen | 374 | 1994 |
| 44 | [DBI The Danish Institute of Fire and Security Technology](https://www.tamtam.ai/c/dbi-the-danish-institute-of-fire-and-security-technology) (brandogsikring.dk)<br>A leading knowledge center in security and fire safety, offering consulting, inspections, testing, certifications, research, training, publications, and emergency planning services | Research Services | 🇩🇰 Hvidovre | 371 |  |
| 45 | [s360](https://www.tamtam.ai/c/s360) (s360digital.com)<br>An award-winning performance marketing agency with 200+ digital specialists across the Nordics, focusing on technology and data-driven strategies for exceptional digital marketing results | Advertising Services | 🇩🇰 Aarhus C | 370 | 2011 |
| 46 | [Falck Fire Services](https://www.tamtam.ai/c/falck-fire-services) (falck.com)<br>Industrial Emergency Response team in the UK providing elite firefighting, chemical spill response, medical emergency response, site security, training, and auditing services Over 60 years of industry experience | Public Safety | 🇩🇰 Redcar | 368 | 1906 |
| 47 | [NTU International A/S](https://www.tamtam.ai/c/ntu-international-a-s) (ntu.eu)<br>Provides sustainable development projects and advisory services in engineering, policy, economics, and social sectors with global presence. | International Affairs | 🇩🇰 Aalborg | 366 | 2007 |
| 48 | [LE34](https://www.tamtam.ai/c/le34) (le34.dk)<br>A leading consultancy firm in Denmark offering surveying, land management, and infrastructure services, with a focus on career development and job satisfaction | Construction | 🇩🇰 Ballerup | 364 | 1817 |
| 49 | [Cepheo](https://www.tamtam.ai/c/cepheo) (cepheo.com)<br>Delivers intelligent, cloud-based business solutions using Microsoft Dynamics 365, helping Nordic companies optimize operations, make smarter decisions, and achieve digital empowerment. | IT Services and IT Consulting | 🇩🇰 Copenhagen | 363 | 2023 |
| 50 | [NTI Denmark](https://www.tamtam.ai/c/nti-denmark) (nti-group.com)<br>A leading provider of CAD, CAM, GIS, document management, and Facility Management solutions for the industrial and construction sectors in Europe | IT Services and IT Consulting | 🇩🇰 Værløse | 353 | 1945 |

## 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 11, 2026.

## More company lists in Denmark

- [The largest companies in Denmark](https://www.tamtam.ai/l/largest-companies-denmark) (2,804)
- [Multinational companies in Denmark](https://www.tamtam.ai/l/multinational-companies-denmark) (777)
- [Retail chains in Denmark](https://www.tamtam.ai/l/retail-chains-denmark) (339)
- [Manufacturers in Denmark](https://www.tamtam.ai/l/manufacturers-denmark) (294)
- [Software Development companies in Denmark](https://www.tamtam.ai/l/software-development-companies-denmark) (279)
- [Companies with in-house R&D in Denmark](https://www.tamtam.ai/l/r-and-d-companies-denmark) (259)
- [SaaS companies in Denmark](https://www.tamtam.ai/l/saas-companies-denmark) (253)
- [Critical infrastructure operators in Denmark](https://www.tamtam.ai/l/critical-infrastructure-operators-denmark) (175)
- [Hardware manufacturers in Denmark](https://www.tamtam.ai/l/hardware-companies-denmark) (173)
- [Financial services firms in Denmark](https://www.tamtam.ai/l/financial-services-firms-denmark) (160)
- [E-commerce companies in Denmark](https://www.tamtam.ai/l/ecommerce-companies-denmark) (152)
- [Public sector organisations in Denmark](https://www.tamtam.ai/l/public-sector-organisations-denmark) (150)
- [Professional services firms in Denmark](https://www.tamtam.ai/l/professional-services-firms-denmark) (150)
- [Companies with a mobile app in Denmark](https://www.tamtam.ai/l/companies-with-mobile-app-denmark) (145)
- [Subscription businesses in Denmark](https://www.tamtam.ai/l/subscription-businesses-denmark) (134)
- [Distributors and wholesalers in Denmark](https://www.tamtam.ai/l/distributors-and-wholesalers-denmark) (122)
- [Food and Beverage Manufacturing companies in Denmark](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-denmark) (119)
- [Retail Apparel and Fashion companies in Denmark](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-denmark) (119)
- [Government Administration companies in Denmark](https://www.tamtam.ai/l/government-administration-companies-denmark) (115)
- [Education providers in Denmark](https://www.tamtam.ai/l/education-companies-denmark) (109)
- [Hotel and hospitality groups in Denmark](https://www.tamtam.ai/l/hospitality-groups-denmark) (109)
- [IT services companies in Denmark](https://www.tamtam.ai/l/it-services-companies-denmark) (102)
- [Food and beverage companies in Denmark](https://www.tamtam.ai/l/food-and-beverage-companies-denmark) (101)
- [IT Services and IT Consulting companies in Denmark](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-denmark) (96)

## The same list elsewhere in Denmark

- [Consulting firms in Copenhagen](https://www.tamtam.ai/l/consulting-firms-copenhagen) (38)

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Source: https://www.tamtam.ai/l/consulting-firms-denmark