# 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).

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.

🇳🇱 North Holland · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Randstad](https://www.tamtam.ai/c/randstad) (randstad.com)<br>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 | 🇳🇱 Diemen | 653,000 | 1960 |
| 2 | [Arcadis](https://www.tamtam.ai/c/arcadis) (arcadis.com)<br>delivering transformative projects globally addressing climate, energy, and livable cities through design, engineering, architecture, and consulting for a better future | Professional Services | 🇳🇱 Amsterdam | 42,295 |  |
| 3 | [TMF Group](https://www.tamtam.ai/c/tmf-group) (tmf-group.com)<br>Provides global administrative, financial, and legal support, helping companies navigate complex regulations and operate safely across numerous international markets. | Financial Services | 🇳🇱 Amsterdam | 11,186 | 1988 |
| 4 | [BearingPoint](https://www.tamtam.ai/c/bearingpoint) (bearingpoint.com)<br>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 | 🇳🇱 Amsterdam | 10,074 | 2002 |
| 5 | [Randstad Enterprise](https://www.tamtam.ai/c/randstad-enterprise) (randstadenterprise.com)<br>A global talent solutions provider, offering integrated talent acquisition and development services to help companies build skilled and agile workforces | Human Resources Services | 🇳🇱 Amsterdam | 4,758 | 2001 |
| 6 | [Getronics](https://www.tamtam.ai/c/getronics-amsterdam-duivendrecht) (getronics.com)<br>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 | 🇳🇱 Amsterdam-Duivendrecht | 4,147 | 1887 |
| 7 | [Brunel](https://www.tamtam.ai/c/brunel) (brunel.net)<br>Global specialist delivering custom project and workforce solutions for industry transformations using technology and talent across various sectors worldwide | Staffing and Recruiting | 🇳🇱 Amsterdam | 4,118 | 1975 |
| 8 | [KPMG Nederland](https://www.tamtam.ai/c/kpmg-nederland) (kpmg.com)<br>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 | 🇳🇱 Amstelveen | 4,008 |  |
| 9 | [PwC Nederland](https://www.tamtam.ai/c/pwc-nederland) (pwc.nl)<br>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 | 🇳🇱 Amsterdam | 3,568 | 1800 |
| 10 | [HSO](https://www.tamtam.ai/c/hso) (hso.com)<br>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 | 🇳🇱 Amsterdam | 2,960 | 1987 |
| 11 | [Tempo-Team](https://www.tamtam.ai/c/tempo-team) (tempo-team.nl)<br>Helping increase workplace enjoyment to boost productivity, creativity, reduce absenteeism, offering knowledge, training, talent, and job opportunities. | Human Resources Services | 🇳🇱 Diemen | 2,544 | 1969 |
| 12 | [PBH](https://www.tamtam.ai/c/pbh)<br>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 | 🇳🇱 Amsterdam | 2,538 |  |
| 13 | [JOP](https://www.tamtam.ai/c/jop) (jopnet.nl)<br>A leading organization in recruitment for government and non-profit sectors, connecting experienced professionals for temporary assignments from HBO level upwards | Government Relations Services | 🇳🇱 Amsterdam | 1,960 | 2007 |
| 14 | [IBI Group](https://www.tamtam.ai/c/ibi-group) (arcadis.com)<br>A global design firm shaping future cities with technology, sustainability, and human-centric design, now part of Arcadis, delivering innovative solutions worldwide | Design Services | 🇳🇱 Amsterdam | 1,818 |  |
| 15 | [MineSec](https://www.tamtam.ai/c/minesec) (release-engineers.com)<br>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 | 🇳🇱 Amsterdam | 1,750 | 2016 |
| 16 | [Loyens & Loeff](https://www.tamtam.ai/c/loyens-and-loeff) (loyensloeff.com)<br>Legal and tax advisory firm offering personal advice with sector expertise in the Netherlands, Belgium, Luxembourg, Switzerland, and global financial centers. | Law Practice | 🇳🇱 Amsterdam | 1,655 | 2000 |
| 17 | [YER](https://www.tamtam.ai/c/yer) (yer.nl)<br>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 | 🇳🇱 Amsterdam | 1,638 | 1987 |
| 18 | [Maandag®](https://www.tamtam.ai/c/maandag) (maandag.com)<br>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 | 🇳🇱 Amsterdam | 1,526 | 1989 |
| 19 | [Intertrust Group](https://www.tamtam.ai/c/intertrust-group) (cscglobal.com)<br>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 | 🇳🇱 Amsterdam | 1,482 | 1952 |
| 20 | [DPS Group Global](https://www.tamtam.ai/c/dps-group-global) (arcadis.com)<br>Global consulting, engineering, and construction management firm specializing in providing innovative solutions to high-tech industries worldwide | Architecture and Planning | 🇳🇱 Amsterdam | 1,391 | 1974 |
| 21 | [YoungCapital](https://www.tamtam.ai/c/youngcapital) (youngcapital.nl)<br>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 | 🇳🇱 Hoofddorp | 1,237 | 2000 |
| 22 | [DPA Professionals](https://www.tamtam.ai/c/dpa-professionals) (dpa.nl)<br>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 | 🇳🇱 Amsterdam | 1,200 | 1990 |
| 23 | [Accenture the Netherlands](https://www.tamtam.ai/c/accenture-the-netherlands) (accenture.com)<br>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 | 🇳🇱 Amsterdam | 1,078 | 2001 |
| 24 | [Taylor Wessing Benelux](https://www.tamtam.ai/c/taylor-wessing-benelux) (taylorwessing.com)<br>Global law firm providing innovative solutions to complex problems, enabling ideas to thrive and creating extraordinary results for clients worldwide | Law Practice | 🇳🇱 Amsterdam | 1,045 | 2015 |
| 25 | [TMI Interim](https://www.tamtam.ai/c/tmi-interim) (tmi.nl)<br>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 | 🇳🇱 Amsterdam | 1,024 | 2001 |
| 26 | [de Jong & Laan](https://www.tamtam.ai/c/de-jong-and-laan) (jonglaan.nl)<br>Specialists in assisting individuals and SMEs with incorporation, tax, social security, residency, immigration, and asset management in the Netherlands | Business Consulting and Services | 🇳🇱 Amsterdam | 974 | 1988 |
| 27 | [Randstad Nederland](https://www.tamtam.ai/c/randstad-nederland) (randstad.nl)<br>Connecting individuals with suitable job opportunities and organizations, emphasizing personal motivations and the importance of work in life. | Human Resources Services | 🇳🇱 Diemen | 929 | 1960 |
| 28 | [ATS Global](https://www.tamtam.ai/c/ats-global) (ats-global.com)<br>ATS is an independent solution provider for smart digital transformation, specializing in automation, IT, manufacturing systems, quality management, and industry 40 solutions | Operations Consulting | 🇳🇱 Haarlem | 913 | 1986 |
| 29 | [De Brauw Blackstone Westbroek](https://www.tamtam.ai/c/de-brauw-blackstone-westbroek) (debrauw.com)<br>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 | 🇳🇱 Amsterdam | 878 | 1871 |
| 30 | [TPS B.V.](https://www.tamtam.ai/c/tps-b-v) (tpsgroep.nl)<br>The company offers traineeships to help graduates discover their ideal career path through a combination of work, learning, and personal development | Human Resources Services | 🇳🇱 Utrecht | 808 |  |
| 31 | [Randstad Groep Nederland](https://www.tamtam.ai/c/randstad-groep-nederland) (werkenbijrandstad.nl)<br>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 | 🇳🇱 Diemen | 807 |  |
| 32 | [NautaDutilh](https://www.tamtam.ai/c/nautadutilh) (nautadutilh.com)<br>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 | 🇳🇱 Amsterdam | 787 |  |
| 33 | [Emixa](https://www.tamtam.ai/c/emixa) (emixa.com)<br>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 | 🇳🇱 Naarden | 783 |  |
| 34 | [GGZ](https://www.tamtam.ai/c/ggz) (ggz.nl)<br>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 | 🇳🇱 Amsterdam | 758 | 2011 |
| 35 | [Meijers Assurantiën](https://www.tamtam.ai/c/meijers-assurantien) (meijers.nl)<br>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 | 🇳🇱 Amstelveen | 740 | 1973 |
| 36 | [Yacht](https://www.tamtam.ai/c/yacht) (randstadprofessional.nl)<br>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 | 🇳🇱 Amsterdam | 660 | 2000 |
| 37 | [Houthoff](https://www.tamtam.ai/c/houthoff) (houthoff.com)<br>An independent full-service Dutch law firm, focused on client trust, community involvement, employee success, diversity, and global service network | Law Practice | 🇳🇱 Amsterdam | 655 |  |
| 38 | [ACES](https://www.tamtam.ai/c/aces) (aces.nl)<br>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 | 🇳🇱 Laren | 629 | 1990 |
| 39 | [HeadFirst Group](https://www.tamtam.ai/c/headfirst-group) (headfirst.group)<br>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 | 🇳🇱 Hoofddorp | 629 | 1995 |
| 40 | [ACT Group](https://www.tamtam.ai/c/act-group-amsterdam) (actgroup.com)<br>Provides expert environmental solutions enabling organizations to measure, reduce, monitor, and disclose carbon footprints while ensuring regulatory compliance worldwide. | Environmental Services | 🇳🇱 Amsterdam | 619 | 2009 |
| 41 | [Arcwide](https://www.tamtam.ai/c/arcwide) (arcwide.com)<br>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 | 🇳🇱 Amsterdam | 593 | 2022 |
| 42 | [Mirage](https://www.tamtam.ai/c/mirage) (mirage.nl)<br>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 | 🇳🇱 Amsterdam | 579 | 1996 |
| 43 | [Top Employers Institute](https://www.tamtam.ai/c/top-employers-institute) (top-employers.com)<br>Global authority recognizing excellence in People Practices Certifying, validating, and recognizing employers of choice worldwide to positively impact millions of employees | Human Resources Services | 🇳🇱 Amsterdam | 540 |  |
| 44 | [UNS](https://www.tamtam.ai/c/uns) (unstudio.com)<br>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 | 🇳🇱 Amsterdam | 518 | 1988 |
| 45 | [ACE](https://www.tamtam.ai/c/ace-amsterdam) (thisisace.nl)<br>Connecting brands, consumers, technology, culture, and creative marketing disciplines, helping brands grow young and stay relevant today and tomorrow. | Advertising Services | 🇳🇱 Amsterdam | 510 |  |
| 46 | [Peterson Energies](https://www.tamtam.ai/c/peterson-energies) (onepeterson.com)<br>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 | 🇳🇱 Den Helder | 509 |  |
| 47 | [DEKRA Claims and Expertise B.V.](https://www.tamtam.ai/c/dekra-claims-and-expertise-b-v) (dekra.nl)<br>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 | 🇳🇱 Alkmaar | 496 |  |
| 48 | [Vibe Group](https://www.tamtam.ai/c/vibe-group) (vibegroup.com)<br>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 | 🇳🇱 Amsterdam | 485 | 2011 |
| 49 | [Highberg](https://www.tamtam.ai/c/highberg) (highberg.com)<br>A European consulting firm specializing in organizational, digital, and sustainability transformations, aiming to be the top partner for lasting impact | Business Consulting and Services | 🇳🇱 Amsterdam | 478 |  |
| 50 | [Pedersen & Partners](https://www.tamtam.ai/c/pedersen-and-partners) (pedersenandpartners.com)<br>Global executive search and leadership consulting firm with 56 offices in 50 countries, focusing on trust, relationships, and professionalism. | Executive Search Services | 🇳🇱 Amsterdam | 463 | 2001 |

## 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 North Holland

- [The largest companies in North Holland](https://www.tamtam.ai/l/largest-companies-north-holland) (3,110)
- [Multinational companies in North Holland](https://www.tamtam.ai/l/multinational-companies-north-holland) (794)
- [Retail chains in North Holland](https://www.tamtam.ai/l/retail-chains-north-holland) (332)
- [SaaS companies in North Holland](https://www.tamtam.ai/l/saas-companies-north-holland) (308)
- [Software Development companies in North Holland](https://www.tamtam.ai/l/software-development-companies-north-holland) (252)
- [Financial services firms in North Holland](https://www.tamtam.ai/l/financial-services-firms-north-holland) (221)
- [IT Services and IT Consulting companies in North Holland](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-north-holland) (205)
- [Financial Services companies in North Holland](https://www.tamtam.ai/l/financial-services-companies-north-holland) (198)
- [Companies with in-house R&D in North Holland](https://www.tamtam.ai/l/r-and-d-companies-north-holland) (188)
- [Hotel and hospitality groups in North Holland](https://www.tamtam.ai/l/hospitality-groups-north-holland) (175)
- [IT services companies in North Holland](https://www.tamtam.ai/l/it-services-companies-north-holland) (165)
- [Companies with a mobile app in North Holland](https://www.tamtam.ai/l/companies-with-mobile-app-north-holland) (160)
- [Consulting firms in North Holland](https://www.tamtam.ai/l/consulting-firms-north-holland) (159)
- [Critical infrastructure operators in North Holland](https://www.tamtam.ai/l/critical-infrastructure-operators-north-holland) (147)
- [E-commerce companies in North Holland](https://www.tamtam.ai/l/ecommerce-companies-north-holland) (133)
- [Manufacturers in North Holland](https://www.tamtam.ai/l/manufacturers-north-holland) (132)
- [Transportation, Logistics, Supply Chain and Storage companies in North Holland](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-north-holland) (130)
- [Retail Apparel and Fashion companies in North Holland](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-north-holland) (127)
- [AI companies in North Holland](https://www.tamtam.ai/l/ai-companies-north-holland) (115)
- [Logistics companies in North Holland](https://www.tamtam.ai/l/logistics-companies-north-holland) (115)
- [Subscription businesses in North Holland](https://www.tamtam.ai/l/subscription-businesses-north-holland) (111)
- [Hospitality companies in North Holland](https://www.tamtam.ai/l/hospitality-companies-north-holland) (108)
- [Education providers in North Holland](https://www.tamtam.ai/l/education-companies-north-holland) (105)
- [Healthcare providers in North Holland](https://www.tamtam.ai/l/healthcare-providers-north-holland) (104)

## The same list elsewhere in Netherlands

- [Professional services firms in the Netherlands](https://www.tamtam.ai/l/professional-services-firms-netherlands) (739)
- [Professional services firms in South Holland](https://www.tamtam.ai/l/professional-services-firms-south-holland) (145)
- [Professional services firms in North Brabant](https://www.tamtam.ai/l/professional-services-firms-north-brabant) (106)
- [Professional services firms in Gelderland](https://www.tamtam.ai/l/professional-services-firms-gelderland) (44)
- [Professional services firms in Overijssel](https://www.tamtam.ai/l/professional-services-firms-overijssel) (34)
- [Professional services firms in Amsterdam](https://www.tamtam.ai/l/professional-services-firms-amsterdam) (153)
- [Professional services firms in Utrecht](https://www.tamtam.ai/l/professional-services-firms-utrecht) (80)
- [Professional services firms in Rotterdam](https://www.tamtam.ai/l/professional-services-firms-rotterdam) (61)
- [Professional services firms in Eindhoven](https://www.tamtam.ai/l/professional-services-firms-eindhoven) (26)

## The same list elsewhere

- [Professional services firms in the world](https://www.tamtam.ai/l/professional-services-firms-in-the-world) (24,737)
- [Professional services firms in Europe](https://www.tamtam.ai/l/professional-services-firms-in-europe) (13,698)

---

Source: https://www.tamtam.ai/l/professional-services-firms-north-holland