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The 30 largest professional services firms in Copenhagen

Tamtam tracks 56 professional services firms headquartered in Copenhagen. This list ranks the 30 largest by number of employees on LinkedIn, led by ISS A/S, Ramboll and FLSmidth. Their median headcount is 648. Half of them were founded in 1994 or later.

πŸ‡©πŸ‡° Copenhagen30 companiesUpdated Nov 12, 2026

These Copenhagen-based professional services firms include large, established companies. ISS A/S provides facility management, Ramboll offers sustainable engineering solutions, and FLSmidth supplies technology to the mining and cement industries. Netcompany, Columbus, and emagine specialize in IT consulting and digital transformation.

A notable pattern is the strong presence of IT services and consulting, with several companies like Netcompany and Columbus based in Copenhagen. Furthermore, the list features a significant number of law firms such as Plesner, Bech-Bruun, and Gorrissen Federspiel, indicating a concentration of legal expertise in the city.

#CompanyIndustryHeadquarters EmployeesFounded
1
ISS A/Sissworld.com

A workplace experience and facility management company that provides placemaking solutions for better business performance and enjoyable work environments

Facilities Services πŸ‡©πŸ‡° Copenhagen 64,283 n/a
2
Rambollramboll.com

Global company offering sustainable solutions in architecture, engineering, and consultancy across various sectors to create sustainable cities and societies worldwide

Engineering Services πŸ‡©πŸ‡° Copenhagen 18,506 1945
3
FLSmidthfls.com

A global supplier to the mining and cement industries, FLSmidth offers technology and services to improve performance, reduce costs, and minimize environmental impact

Industrial Machinery Manufacturing πŸ‡©πŸ‡° Copenhagen 12,984 1882
4
Netcompanynetcompany.com

Providing agile IT consulting and digital transformation services, delivering scalable, modern technology solutions for large Northern European clients.

IT Services and IT Consulting πŸ‡©πŸ‡° Copenhagen 8,266 2000
5
Columbuscolumbusglobal.com

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 πŸ‡©πŸ‡° Copenhagen 2,496 n/a
6
emagineemagine.org

Providing tailored IT consulting services including team extension, nearshoring, dedicated teams, and managed services for diverse industries.

IT Services and IT Consulting πŸ‡©πŸ‡° Copenhagen 2,182 1989
7
Designitdesignit.com

An award-winning experience innovation company helping businesses create change through strategy, design, marketing, and tech solutions for complex problems

Design Services πŸ‡©πŸ‡° Copenhagen 1,663 n/a
8
NNITnnit.com

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 πŸ‡©πŸ‡° Copenhagen 1,636 1994
9
ISS Franceissworld.com

Provider of integrated facility services including cleaning, catering, security, property, and support services for diverse industries and workplaces.

Facilities Services πŸ‡©πŸ‡° Copenhagen 1,018 1994
10
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

Business Consulting and Services πŸ‡©πŸ‡° Copenhagen 929 n/a
11
Moment A/Smoment.dk

Leader in temp and recruitment services in Denmark, connecting talented candidates with varied jobs while prioritizing proper conditions for employees and temps

Staffing and Recruiting πŸ‡©πŸ‡° Copenhagen 818 1997
12
NIRAS International Consultingniras.com

International consultancy providing technical assistance and project management for development programs worldwide with a large network of experts

Business Consulting and Services πŸ‡©πŸ‡° Copenhagen 704 1956
13
Plesnerplesner.com

Leading Danish law firm specializing in strategic legal advisory services for businesses, asset protection, transfer, financing, and complex dispute resolution

Law Practice πŸ‡©πŸ‡° Copenhagen 690 1918
14
Bech-Bruunbechbruun.com

Bech-Bruun is a market-oriented law firm specializing in all areas of business law, offering services to Danish business, public sector, and global companies

Law Practice πŸ‡©πŸ‡° Copenhagen 674 1872
15
Gorrissen Federspielgorrissenfederspiel.com

A leading Danish law firm offering top legal solutions to domestic and international clients through a team of ambitious professionals

Law Practice πŸ‡©πŸ‡° Copenhagen 648 n/a

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16
EDC Poul Erik Bechpoulerikbech.dk

The largest estate agency in Denmark with over 500 employees, offering residential and commercial services independently from banks, supporting charitable initiatives

Real Estate πŸ‡©πŸ‡° Copenhagen 623 1978
17
Henning Larsenhenninglarsen.com

An international design studio specializing in architecture, landscape, and urbanism, focusing on creating spaces that prioritize human interaction, natural light, and sustainability

Architecture and Planning πŸ‡©πŸ‡° Copenhagen 613 1959
18
Zacco - 360Β° Intellectual Propertyzacco.com

An international full-service IP solutions and brand protection specialist, helping organizations develop, manage, and protect their intellectual property globally

Legal Services πŸ‡©πŸ‡° Copenhagen 539 n/a
19
LanguageWirelanguagewire.com

A global Language Service Provider offering translation and multilingual communication services through a combination of AI technology and human expertise

IT Services and IT Consulting πŸ‡©πŸ‡° Copenhagen 535 2000
20
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

Business Consulting and Services πŸ‡©πŸ‡° Copenhagen 517 n/a
21
Tolkdanmark ApStolkdanmark.dk

A company offering interpretation services 24/7, including sign language, with personal calendars available via app and website in Denmark

Translation and Localization πŸ‡©πŸ‡° Copenhagen 514 2002
22
IMPACT Commerceimpactcommerce.com

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 πŸ‡©πŸ‡° Copenhagen 437 n/a
23
browearebro.dk

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 πŸ‡©πŸ‡° Copenhagen 424 1999
24
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

Civil Engineering πŸ‡©πŸ‡° Copenhagen 422 1945
25
DLA Piper Denmarkdenmark.dlapiper.com

A global law firm with offices in over 40 countries, providing legal advice and innovative solutions to clients worldwide for success

Law Practice πŸ‡©πŸ‡° Copenhagen 418 n/a
26
SLAsla.dk

An internationally renowned design studio specializing in nature-based solutions for urban challenges, creating sustainable and inclusive spaces for people, cities, and nature

Architecture and Planning πŸ‡©πŸ‡° Copenhagen 409 1994
27
Preferred by Naturepreferredbynature.org

International non-profit supporting sustainable land management and business practices through certification, awareness projects, and capacity building worldwide.

Non-profit Organizations πŸ‡©πŸ‡° Copenhagen 374 1994
28
Cepheocepheo.com

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 πŸ‡©πŸ‡° Copenhagen 363 2023
29
SΓΆderberg & Partners Danmarksoderbergpartners.dk

A leading insurance and pension broker in the Nordics with over 3,300 franchisees and employees, providing tailored solutions through personal and local advice

Insurance πŸ‡©πŸ‡° Copenhagen 338 2004
30
MB Shipbrokersmbshipbrokers.com

Global ship brokerage leader with 17 offices worldwide, catering to various shipbroking needs for ship owners, charterers, shipbuilders, and financial institutions

Maritime Transportation πŸ‡©πŸ‡° Copenhagen 295 1914

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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.

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