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The 50 largest professional services firms in North Holland

Tamtam tracks 207 professional services firms headquartered in North Holland. This list ranks the 50 largest by number of employees on LinkedIn, led by Randstad, Arcadis and TMF Group. Their median headcount is 1,024. Half of them were founded in 1990 or later. The most common headquarters are Amsterdam (35), Diemen (4) and Amstelveen (2).

๐Ÿ‡ณ๐Ÿ‡ฑ North Holland50 companiesUpdated Nov 12, 2026

This selection of professional services firms in North Holland includes large enterprises and mid-sized companies, predominantly in human resources, IT consulting, and financial services. Noteworthy firms include Randstad, a global HR services provider, Arcadis, which focuses on design and engineering for urban development, TMF Group, offering global administrative and financial support, and BearingPoint, an independent consulting firm.

The data shows a strong concentration of headquarters in Amsterdam, with many companies founded in the late 20th and early 21st centuries. Companies like Getronics, founded in 1887, and PwC Nederland, established in 1800, represent a longer history in the region's professional services sector.

#CompanyIndustryHeadquarters EmployeesFounded
1
Randstadrandstad.com

Provides companies with quality workforces, helps people find jobs, advises on HR needs, and offers training, combining technology with personalized human attention.

Human Resources Services ๐Ÿ‡ณ๐Ÿ‡ฑ Diemen 653,000 1960
2
Arcadisarcadis.com

delivering transformative projects globally addressing climate, energy, and livable cities through design, engineering, architecture, and consulting for a better future

Professional Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 42,295 n/a
3
TMF Grouptmf-group.com

Provides global administrative, financial, and legal support, helping companies navigate complex regulations and operate safely across numerous international markets.

Financial Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 11,186 1988
4
BearingPointbearingpoint.com

Independent consulting firm offering tailored solutions for complex business environments, applying deep industry expertise to help clients achieve their goals globally

Business Consulting and Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 10,074 2002
5
Randstad Enterpriserandstadenterprise.com

A global talent solutions provider, offering integrated talent acquisition and development services to help companies build skilled and agile workforces

Human Resources Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 4,758 2001
6
Getronicsgetronics.com

Global technology solutions provider empowering businesses with tailored, secure, and sustainable IT services to drive growth, efficiency, and reduce environmental impact

IT Services and IT Consulting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam-Duivendrecht 4,147 1887
7
Brunelbrunel.net

Global specialist delivering custom project and workforce solutions for industry transformations using technology and talent across various sectors worldwide

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 4,118 1975
8
KPMG Nederlandkpmg.com

This company provides high-quality audit, tax, and advisory services to a wide range of clients, helping them navigate complex challenges and excel

Financial Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amstelveen 4,008 n/a
9
PwC Nederlandpwc.nl

A global company providing advisory, assurance, digital, and tax services aiming to solve major societal issues and build trust in the world

Business Consulting and Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 3,568 1800
10
HSOhso.com

This company helps businesses modernize operations, implement intelligent automation, and connect the enterprise through Microsoft cloud solutions and global support services

IT Services and IT Consulting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 2,960 1987
11
Tempo-Teamtempo-team.nl

Helping increase workplace enjoyment to boost productivity, creativity, reduce absenteeism, offering knowledge, training, talent, and job opportunities.

Human Resources Services ๐Ÿ‡ณ๐Ÿ‡ฑ Diemen 2,544 1969
12
PBH

A leader in scaling start-ups and providing strategic industry advice, focusing on people, process, technology alignment, and promoting innovation for sustainable business transformations

Business Consulting and Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 2,538 n/a
13
JOPjopnet.nl

A leading organization in recruitment for government and non-profit sectors, connecting experienced professionals for temporary assignments from HBO level upwards

Government Relations Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,960 2007
14
IBI Grouparcadis.com

A global design firm shaping future cities with technology, sustainability, and human-centric design, now part of Arcadis, delivering innovative solutions worldwide

Design Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,818 n/a
15
MineSecrelease-engineers.com

Designing and developing efficient CI/CD systems to facilitate scalable and confident solution building and deployment, allowing developers to focus on core business

IT Services and IT Consulting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,750 2016
16
Loyens & Loeffloyensloeff.com

Legal and tax advisory firm offering personal advice with sector expertise in the Netherlands, Belgium, Luxembourg, Switzerland, and global financial centers.

Law Practice ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,655 2000
17
YERyer.nl

Connecting talents, experts, and organizations, YER drives ambitions by matching them with top consultants They facilitate career growth for individuals and strategic partnerships for businesses

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,638 1987
18
Maandagยฎmaandag.com

The company connects individuals with fulfilling work that matches their abilities, ambitions, and preferences in an inclusive and diverse environment, fostering passion for Mondays

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,526 1989
19
Intertrust Groupcscglobal.com

Global provider of specialized administration services with a focus on corporate, fund, capital markets, and private wealth services, supported by innovative technology and local expertise

Financial Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,482 1952
20
DPS Group Globalarcadis.com

Global consulting, engineering, and construction management firm specializing in providing innovative solutions to high-tech industries worldwide

Architecture and Planning ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,391 1974
21
YoungCapitalyoungcapital.nl

Specialist in connecting young talent with employers through jobs, traineeships, and education, promoting growth and innovation Also offers specialized training programs Operating across multiple European countries

Human Resources Services ๐Ÿ‡ณ๐Ÿ‡ฑ Hoofddorp 1,237 2000
22
DPA Professionalsdpa.nl

Connecting specialized professionals with leading companies from multinationals to government, fostering continuous and sustainable growth through secondment, applied consultancy, recruitment, and selection.

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,200 1990
23
Accenture the Netherlandsaccenture.com

Global professional services company specializing in digital, cloud, and security solutions for clients in 40+ industries worldwide, powered by Advanced Technology and Intelligent Operations

Business Consulting and Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,078 2001
24
Taylor Wessing Beneluxtaylorwessing.com

Global law firm providing innovative solutions to complex problems, enabling ideas to thrive and creating extraordinary results for clients worldwide

Law Practice ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,045 2015
25
TMI Interimtmi.nl

An Amsterdam based deployment agency specializing in healthcare, offering various contracts and executive search services in nursing, paramedics, and medical specialist sectors Expanding internationally since 2001

Hospitals and Health Care ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 1,024 2001

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26
de Jong & Laanjonglaan.nl

Specialists in assisting individuals and SMEs with incorporation, tax, social security, residency, immigration, and asset management in the Netherlands

Business Consulting and Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 974 1988
27
Randstad Nederlandrandstad.nl

Connecting individuals with suitable job opportunities and organizations, emphasizing personal motivations and the importance of work in life.

Human Resources Services ๐Ÿ‡ณ๐Ÿ‡ฑ Diemen 929 1960
28
ATS Globalats-global.com

ATS is an independent solution provider for smart digital transformation, specializing in automation, IT, manufacturing systems, quality management, and industry 40 solutions

Operations Consulting ๐Ÿ‡ณ๐Ÿ‡ฑ Haarlem 913 1986
29
De Brauw Blackstone Westbroekdebrauw.com

The company delivers high-quality legal services globally, specializing in corporate law, litigation, arbitration, and compliance, with a focus on multidisciplinary, cross-border matters

Law Practice ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 878 1871
30
TPS B.V.tpsgroep.nl

The company offers traineeships to help graduates discover their ideal career path through a combination of work, learning, and personal development

Human Resources Services ๐Ÿ‡ณ๐Ÿ‡ฑ Utrecht 808 n/a
31
Randstad Groep Nederlandwerkenbijrandstad.nl

Randstad Group Netherlands leverages technology and personal touch to match candidates with meaningful careers and help clients navigate the future of work

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Diemen 807 n/a
32
NautaDutilhnautadutilh.com

A leading international law firm with 400 lawyers, notaries, and tax advisers across various offices, known for adaptive thinking and problem-solving for clients

Law Practice ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 787 n/a
33
Emixaemixa.com

Connecting people, processes, and systems across product/service lifecycles. Empowering organizations to work smarter, faster, sustainably, through digital transformation and technology implementation.

IT Services and IT Consulting ๐Ÿ‡ณ๐Ÿ‡ฑ Naarden 783 n/a
34
GGZggz.nl

GGZ is a consultancy for healthcare leaders and entrepreneurs, providing expertise in mental health through a team of advisors, therapists, and researchers

Mental Health Care ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 758 2011
35
Meijers Assurantiรซnmeijers.nl

Independent insurance broker providing mediation between insurers and insured parties, advising clients on risk coverage for national and international clients with peace of mind

Insurance ๐Ÿ‡ณ๐Ÿ‡ฑ Amstelveen 740 1973
36
Yachtrandstadprofessional.nl

Yacht connects skilled professionals with leading clients, specializing in eight fields like IT, Finance, and HR, to drive optimal results and organizational improvement

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 660 2000
37
Houthoffhouthoff.com

An independent full-service Dutch law firm, focused on client trust, community involvement, employee success, diversity, and global service network

Law Practice ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 655 n/a
38
ACESaces.nl

With over 25 years of experience in recruitment, ACES International offers comprehensive solutions in workforce management and innovative concepts for businesses and individuals

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Laren 629 1990
39
HeadFirst Groupheadfirst.group

A leading HR-tech service provider in Europe offering a wide range of HR solutions, including managed services, recruitment, IT sourcing, and consultancy

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Hoofddorp 629 1995
40
ACT Groupactgroup.com

Provides expert environmental solutions enabling organizations to measure, reduce, monitor, and disclose carbon footprints while ensuring regulatory compliance worldwide.

Environmental Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 619 2009
41
Arcwidearcwide.com

Arcwide combines management consulting and IFS application deployment for clients, supporting various industries with end-to-end digital consulting solutions and maximizing the IFS Cloud platform's potential

IT Services and IT Consulting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 593 2022
42
Miragemirage.nl

As a specialized automation personnel intermediary, Mirage Automation provides highly qualified ICT professionals for short or long-term projects and permanent positions

IT Services and IT Consulting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 579 1996
43
Top Employers Institutetop-employers.com

Global authority recognizing excellence in People Practices Certifying, validating, and recognizing employers of choice worldwide to positively impact millions of employees

Human Resources Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 540 n/a
44
UNSunstudio.com

A leading architecture and design firm founded in 1988, specializing in innovative projects worldwide with a collaborative network of consultants and international offices

Architecture and Planning ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 518 1988
45
ACEthisisace.nl

Connecting brands, consumers, technology, culture, and creative marketing disciplines, helping brands grow young and stay relevant today and tomorrow.

Advertising Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 510 n/a
46
Peterson Energiesonepeterson.com

A multi-industry company since 1920, providing thorough inspections, logistics coordination, and safe transportation by air, land, or sea Trusted for high-quality service

Transportation, Logistics, Supply Chain and Storage ๐Ÿ‡ณ๐Ÿ‡ฑ Den Helder 509 n/a
47
DEKRA Claims and Expertise B.V.dekra.nl

A leading player in the Dutch insurance market providing expert claims management services globally, specializing in used car management for various automotive industry clients

Insurance ๐Ÿ‡ณ๐Ÿ‡ฑ Alkmaar 496 n/a
48
Vibe Groupvibegroup.com

Connects highly skilled tech professionals to companies for temporary or permanent roles, focusing on specific tech niche markets like data, IT development, ERP, cybersecurity, and engineering.

Staffing and Recruiting ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 485 2011
49
Highberghighberg.com

A European consulting firm specializing in organizational, digital, and sustainability transformations, aiming to be the top partner for lasting impact

Business Consulting and Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 478 n/a
50
Pedersen & Partnerspedersenandpartners.com

Global executive search and leadership consulting firm with 56 offices in 50 countries, focusing on trust, relationships, and professionalism.

Executive Search Services ๐Ÿ‡ณ๐Ÿ‡ฑ Amsterdam 463 2001

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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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