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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Rambollramboll.com
Global company offering sustainable solutions in architecture, engineering, and consultancy across various sectors to create sustainable cities and societies worldwide |
18,506 | |||
| 2 | 8,647 | ||||
| 3 |
Netcompanynetcompany.com
Providing agile IT consulting and digital transformation services, delivering scalable, modern technology solutions for large Northern European clients. |
8,266 | |||
| 4 | 3,794 | ||||
| 5 |
Atos IT Solutions and Services A/Satos.net
An international IT service provider offering high-tech transaction, consulting, system integration, and outsourcing services to a global customer base across various industries |
3,772 | |||
| 6 | 3,539 | ||||
| 7 |
MOE Denmarkarteliagroup.dk
The company offers services under the name Artelia and operates in Denmark Check their LinkedIn profile for more information |
2,916 | |||
| 8 |
Columbuscolumbusglobal.com
A global IT services and consulting company offering digital transformation solutions for various industries, with extensive experience and a customer-centric approach |
2,496 | |||
| 9 |
FORCE Technologyforcetechnology.com
Technology consultancy providing testing, calibration, analysis, sensor systems, and training to support sustainable and safe technological advancements for companies. |
2,372 | |||
| 10 |
emagineemagine.org
Providing tailored IT consulting services including team extension, nearshoring, dedicated teams, and managed services for diverse industries. |
2,182 | |||
| 11 |
Implement Consulting Groupimplementconsultinggroup.com
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. |
2,007 | |||
| 12 |
DHIdhigroup.com
The company specializes in water management, climate change adaptation, water quality improvement, and offering sustainable solutions for the global water industry |
1,794 | |||
| 13 |
Beierholmbeierholm.dk
auditing and consulting services for small and medium-sized companies, specializing in finance, tax, investment, business development, and sustainability |
1,774 | |||
| 14 |
PwC Danmarkpwc.dk
Providing audit, tax, and advisory services to businesses and public sector clients, focusing on trust and solving key challenges. |
1,738 | |||
| 15 |
Designitdesignit.com
An award-winning experience innovation company helping businesses create change through strategy, design, marketing, and tech solutions for complex problems |
1,663 | |||
| 16 | 1,636 | ||||
| 17 |
Sweco Danmark A/Ssweco.dk
Sweco plans and designs sustainable buildings, efficient infrastructure, and clean water access worldwide, with 15,000 employees offering expertise for diverse projects |
1,284 | |||
| 18 |
Artelia Denmarkarteliagroup.dk
Large multidisciplinary consulting engineering company, specializing in building construction, infrastructure, water, industry, energy. Part of an international group with global presence. |
1,278 | |||
| 19 |
Ramboll Management Consultingramboll.com
Empowering sustainable change through multi-disciplined management consultancy, addressing global megatrends like digitalisation, climate change, and sustainability with a Nordic heritage. |
1,300 | |||
| 20 |
BDO Danmarkbdo.dk
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 |
1,227 | |||
| 21 |
DELTA - a part of FORCE Technologymadebydelta.com
An independent technology company providing accessible information, advanced technology services, product development support, testing, certification, and sustainable solutions since 1941 |
1,086 | |||
| 22 | 1,028 | ||||
| 23 |
VML MAPvml-map.com
Global team specializing in Marketing Automation, Personalization, Loyalty, and CRM, crafting personalized content to create connections between brands and consumers worldwide |
929 | |||
| 24 | 920 | ||||
| 25 |
Initinitgroup.com
Uniting top companies and professionals in Industrial IT and automation across multiple European countries with around 800 employees. |
823 | |||
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. | |||||
| 26 |
Maersk Trainingmaersktraining.com
Global training provider focused on improving safety, behavior, and operational performance through real-life scenarios and advanced simulation technology |
794 | |||
| 27 |
AlfaPeoplealfapeople.com
A global leader in Microsoft Dynamics 365 consulting, offering tailored CRM and ERP solutions to drive growth and customer satisfaction worldwide |
726 | |||
| 28 |
NIRAS International Consultingniras.com
International consultancy providing technical assistance and project management for development programs worldwide with a large network of experts |
704 | |||
| 29 |
WSP Danmarkwsp.com
Leading professional services consulting firm shaping built and natural environments for future generations through innovative solutions and sustainable practices |
638 | |||
| 30 |
Grant Thornton Denmarkgrantthornton.dk
A Danish-owned accounting and consulting firm with almost 600 employees offering auditing, accounting, and advisory services to a diverse client portfolio |
581 | |||
| 31 |
KPMG Denmarkkpmg.com
Deliver audit, tax, and advisory services using technology to empower clients, drive transformation, and add value to businesses and society. |
570 | |||
| 32 |
CfL - Bedre ledere. Bedre resultater.cfl.dk
A leadership center in Denmark offering a full range of services to develop leaders and organizations, focused on improving leadership quality |
517 | |||
| 33 | 486 | ||||
| 34 |
DIS - CREADIS Engineering Solutions & Consultingcreadis.com
Provides integrated engineering solutions across mechanical, software, hardware, electrical, and automation for global technology leaders, optimizing and sustaining technical challenges. |
448 | |||
| 35 |
IMPACT Commerceimpactcommerce.com
Impact is a digital commerce agency focused on building omnichannel solutions through strategy, design, tech, and optimization to fuel meaningful growth |
437 | |||
| 36 |
browearebro.dk
The company specializes in combining communication, organizational development, and behavioral design to create effective solutions that influence people's behavior |
424 | |||
| 37 | 423 | ||||
| 38 |
O'Brien & Gere (OBG)ramboll.com
A company specializing in engineering, design, and consultancy joined forces with a larger organization to enhance expertise and provide innovative solutions globally |
422 | |||
| 39 | 420 | ||||
| 40 | 401 | ||||
| 41 |
ENABL A/Senabl-wind.com
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 |
395 | |||
| 42 |
Redmark – Mærkbar forskelredmark.dk
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 |
382 | |||
| 43 |
Preferred by Naturepreferredbynature.org
International non-profit supporting sustainable land management and business practices through certification, awareness projects, and capacity building worldwide. |
374 | |||
| 44 |
DBI The Danish Institute of Fire and Security Technologybrandogsikring.dk
A leading knowledge center in security and fire safety, offering consulting, inspections, testing, certifications, research, training, publications, and emergency planning services |
371 | |||
| 45 |
s360s360digital.com
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 |
370 | |||
| 46 |
Falck Fire Servicesfalck.com
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 |
368 | |||
| 47 |
NTU International A/Sntu.eu
Provides sustainable development projects and advisory services in engineering, policy, economics, and social sectors with global presence. |
366 | |||
| 48 | 364 | ||||
| 49 |
Cepheocepheo.com
Delivers intelligent, cloud-based business solutions using Microsoft Dynamics 365, helping Nordic companies optimize operations, make smarter decisions, and achieve digital empowerment. |
363 | |||
| 50 |
NTI Denmarknti-group.com
A leading provider of CAD, CAM, GIS, document management, and Facility Management solutions for the industrial and construction sectors in Europe |
353 | |||
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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 2,804
- Multinational companies in Denmark 777
- Retail chains in Denmark 339
- Manufacturers in Denmark 294
- Software Development companies in Denmark 279
- Companies with in-house R&D in Denmark 259
- SaaS companies in Denmark 253
- Critical infrastructure operators in Denmark 175
- Hardware manufacturers in Denmark 173
- Financial services firms in Denmark 160
- E-commerce companies in Denmark 152
- Public sector organisations in Denmark 150
- Professional services firms in Denmark 150
- Companies with a mobile app in Denmark 145
- Subscription businesses in Denmark 134
- Distributors and wholesalers in Denmark 122
- Food and Beverage Manufacturing companies in Denmark 119
- Retail Apparel and Fashion companies in Denmark 119
- Government Administration companies in Denmark 115
- Education providers in Denmark 109
- Hotel and hospitality groups in Denmark 109
- IT services companies in Denmark 102
- Food and beverage companies in Denmark 101
- IT Services and IT Consulting companies in Denmark 96