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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
ISS A/Sissworld.com
A workplace experience and facility management company that provides placemaking solutions for better business performance and enjoyable work environments |
64,283 | |||
| 2 |
Rambollramboll.com
Global company offering sustainable solutions in architecture, engineering, and consultancy across various sectors to create sustainable cities and societies worldwide |
18,506 | |||
| 3 | 12,984 | ||||
| 4 |
Netcompanynetcompany.com
Providing agile IT consulting and digital transformation services, delivering scalable, modern technology solutions for large Northern European clients. |
8,266 | |||
| 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 |
2,496 | |||
| 6 |
emagineemagine.org
Providing tailored IT consulting services including team extension, nearshoring, dedicated teams, and managed services for diverse industries. |
2,182 | |||
| 7 |
Designitdesignit.com
An award-winning experience innovation company helping businesses create change through strategy, design, marketing, and tech solutions for complex problems |
1,663 | |||
| 8 | 1,636 | ||||
| 9 |
ISS Franceissworld.com
Provider of integrated facility services including cleaning, catering, security, property, and support services for diverse industries and workplaces. |
1,018 | |||
| 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 |
929 | |||
| 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 |
818 | |||
| 12 |
NIRAS International Consultingniras.com
International consultancy providing technical assistance and project management for development programs worldwide with a large network of experts |
704 | |||
| 13 |
Plesnerplesner.com
Leading Danish law firm specializing in strategic legal advisory services for businesses, asset protection, transfer, financing, and complex dispute resolution |
690 | |||
| 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 |
674 | |||
| 15 |
Gorrissen Federspielgorrissenfederspiel.com
A leading Danish law firm offering top legal solutions to domestic and international clients through a team of ambitious professionals |
648 | |||
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. | |||||
| 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 |
623 | |||
| 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 |
613 | |||
| 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 |
539 | |||
| 19 |
LanguageWirelanguagewire.com
A global Language Service Provider offering translation and multilingual communication services through a combination of AI technology and human expertise |
535 | |||
| 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 |
517 | |||
| 21 |
Tolkdanmark ApStolkdanmark.dk
A company offering interpretation services 24/7, including sign language, with personal calendars available via app and website in Denmark |
514 | |||
| 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 |
437 | |||
| 23 |
browearebro.dk
The company specializes in combining communication, organizational development, and behavioral design to create effective solutions that influence people's behavior |
424 | |||
| 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 |
422 | |||
| 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 |
418 | |||
| 26 | 409 | ||||
| 27 |
Preferred by Naturepreferredbynature.org
International non-profit supporting sustainable land management and business practices through certification, awareness projects, and capacity building worldwide. |
374 | |||
| 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. |
363 | |||
| 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 |
338 | |||
| 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 |
295 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 Copenhagen
- The largest companies in Copenhagen 779
- Multinational companies in Copenhagen 197
- SaaS companies in Copenhagen 106
- Software Development companies in Copenhagen 99
- Retail chains in Copenhagen 94
- Subscription businesses in Copenhagen 66
- Financial services firms in Copenhagen 59
- Companies with a mobile app in Copenhagen 53
- E-commerce companies in Copenhagen 48
- Hotel and hospitality groups in Copenhagen 44
- Companies with in-house R&D in Copenhagen 42
- Retail Apparel and Fashion companies in Copenhagen 39
- Consulting firms in Copenhagen 38
- Critical infrastructure operators in Copenhagen 38
- Financial Services companies in Copenhagen 38
- Restaurants companies in Copenhagen 35
- IT Services and IT Consulting companies in Copenhagen 33
- Public sector organisations in Copenhagen 32
- AI companies in Copenhagen 30
- Insurance companies in Copenhagen 30
- Government Administration companies in Copenhagen 29
- Technology, Information and Internet companies in Copenhagen 29
- IT services companies in Copenhagen 29
- Education providers in Copenhagen 28
The same list elsewhere in Denmark
- Professional services firms in Denmark 150
- Professional services firms in Capital Region of Denmark 33