# 50 leading Human Resources Services companies in the United Kingdom

Tamtam tracks 114 Human Resources Services companies headquartered in the United Kingdom. This list ranks the 50 largest by number of employees on LinkedIn, led by AMS, At home and fresher. Their median headcount is 203. Half of them were founded in 2007 or later. The most common headquarters are London (26), Manchester (3) and Bristol (2).

These UK-based human resources companies primarily offer talent solutions, payroll, and HR services. They range from global providers to specialized firms. AMS provides global talent solutions, while At home focuses on remote work. Peninsula UK offers employment law and HR services, and CloudPay specializes in global pay processes. NGA Human Resources, an Alight company, delivers digital HR and payroll solutions. Santa Fe Relocation manages relocation services.

Most of these companies are headquartered in London, indicating a concentration of HR service providers in the capital. Other locations include Manchester, Bristol, Oxford, and Wimbledon.

🇬🇧 United Kingdom · 50 companies · Updated Nov 13, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [AMS](https://www.tamtam.ai/c/ams) (weareams.com)<br>Global talent solutions business specializing in sourcing, selecting, and retaining top talent through digital innovation, HR expertise, and a holistic approach to workforce management | Human Resources Services | 🇬🇧 London | 8,718 | 1996 |
| 2 | [At home](https://www.tamtam.ai/c/at-home) (jobsify.org)<br>The company allows employees to work remotely from their homes | Human Resources Services | 🇬🇧 London | 8,569 |  |
| 3 | [fresher](https://www.tamtam.ai/c/fresher) (jobsify.org)<br>This company provides a wide range of content covering news, business, sport, commentary, lifestyle, and culture related to fresher jobs | Human Resources Services | 🇬🇧 London | 5,935 |  |
| 4 | [Workana](https://www.tamtam.ai/c/workana) (workana.com)<br>Leading Latin American platform connecting top talent with remote work opportunities, facilitating growth for companies and freelancers Over 600,000 companies and 3 million freelancers benefit from our services | Human Resources Services | 🇬🇧 Buenos Aires | 5,417 | 2012 |
| 5 | [Peninsula UK](https://www.tamtam.ai/c/peninsula-uk) (peninsulagrouplimited.com)<br>Provides employment law, HR, and health & safety services, including training, tax, payroll, software, and employee assistance programs to businesses. | Human Resources Services | 🇬🇧 Manchester | 2,888 | 1983 |
| 6 | [NGA Human Resources, an Alight company](https://www.tamtam.ai/c/nga-human-resources-an-alight-company) (alight.com)<br>Global provider of HR solutions, pioneering digital HR, payroll, compliance, and workforce data to enhance employee experiences, save costs, and transform organizations worldwide | Human Resources Services | 🇬🇧 London | 2,789 |  |
| 7 | [CloudPay](https://www.tamtam.ai/c/cloudpay) (cloudpay.com)<br>CloudPay provides global companies with modern solutions for employee pay processes, including payroll, payments, and on-demand pay, guided by trusted experts | Human Resources Services | 🇬🇧 London | 1,460 | 1996 |
| 8 | [Santa Fe Relocation](https://www.tamtam.ai/c/santa-fe-relocation) (santaferelo.com)<br>Specializes in managing and delivering high-quality relocation services to help corporations and employees settle in new global locations. | Human Resources Services | 🇬🇧 London | 1,436 | 1959 |
| 9 | [hap Solutions Group](https://www.tamtam.ai/c/hap-solutions-group) (hapgroup.co.uk)<br>Specializing in temporary staffing, permanent recruitment, and training services, we elevate businesses throughout the UK & Ireland with tailored solutions | Human Resources Services | 🇬🇧 Uk | 1,130 | 2017 |
| 10 | [CIPD](https://www.tamtam.ai/c/cipd) (cipd.org)<br>The company is a professional body for HR and people development, providing expertise, research, and setting standards to improve work and working lives globally | Human Resources Services | 🇬🇧 Wimbledon | 1,071 | 1913 |
| 11 | [All Cruise Jobs](https://www.tamtam.ai/c/all-cruise-jobs) (allcruisejobs.com)<br>Leading job board for cruise line industry vacancies, offering opportunities to work on cruise ships through wwwallcruisejobscom | Human Resources Services | 🇬🇧 Bristol | 1,009 | 2006 |
| 12 | [OPP](https://www.tamtam.ai/c/opp) (opp.com)<br>A global business psychology provider offering training, resources, and consultancy to help individuals and teams unlock their potential and improve relationships | Human Resources Services | 🇬🇧 Oxford | 993 | 1987 |
| 13 | [ONLINE WORK](https://www.tamtam.ai/c/online-work) (jobsify.org)<br>Opportunity for individuals to earn income from home by investing time in social media Seeking young, dynamic individuals for part-time/full-time work | Human Resources Services | 🇬🇧 London | 951 | 1978 |
| 14 | [Remote Helpers](https://www.tamtam.ai/c/remote-helpers) (rh-s.com)<br>The company offers dedicated English-speaking Virtual Assistants for a variety of online marketing tasks, including content management, customer support, and design | Human Resources Services | 🇬🇧 London | 822 | 2018 |
| 15 | [ROC](https://www.tamtam.ai/c/roc-walton-on-thames) (zalaris.com)<br>A company acquired by Zalaris ASA, specializing in HR and payroll services, operating in the UK and Ireland regions | Human Resources Services | 🇬🇧 Walton-on-Thames | 747 | 2017 |
| 16 | [BrightHR](https://www.tamtam.ai/c/brighthr) (brighthr.com)<br>An award-winning HR software and support services provider with additional offerings like health & safety software, e-learning, and business support services | Human Resources Services | 🇬🇧 Manchester | 589 | 2015 |
| 17 | [TopSource](https://www.tamtam.ai/c/topsource) (topsourceworldwide.com)<br>Strategic talent deployment and globalization services enabling organizations to hire, operate, and expand efficiently across worldwide markets with compliance. | Human Resources Services | 🇬🇧 London | 530 | 2004 |
| 18 | [Thomas](https://www.tamtam.ai/c/thomas) (thomas.co)<br>Develops people science tools to enhance self-understanding, improve team management, reduce conflict, and boost employee engagement and performance. | Human Resources Services | 🇬🇧 Marlow | 522 | 1981 |
| 19 | [McLean & Company](https://www.tamtam.ai/c/mclean-and-company) (bit.ly)<br>We partner with organizations to create data-driven workplaces that prepare for the future, offering assessments, action plans, training, and more | Human Resources Services | 🇬🇧 London | 384 | 1997 |
| 20 | [Penna, an LHH brand](https://www.tamtam.ai/c/penna-an-lhh-brand) (penna.com)<br>People management business partnering with public and private sector, offering attraction strategies, recruitment selection, assessment for top talent in executive roles Part of Adecco Group | Human Resources Services | 🇬🇧 London | 371 | 1974 |
| 21 | [GCPS Consulting](https://www.tamtam.ai/c/gcps-consulting) (gcps.consulting)<br>Specializing in international safeguarding, GCPS Consulting offers comprehensive solutions to enhance protection policies, programs, and systems for vulnerable populations | Human Resources Services | 🇬🇧 Sheffield | 352 | 2008 |
| 22 | [activpayroll](https://www.tamtam.ai/c/activpayroll) (activpayroll.com)<br>Global payroll, international payments, global mobility, and HR services ensuring compliant and timely payment worldwide, supported by tech and tax specialists | Human Resources Services | 🇬🇧 Aberdeen | 316 | 2001 |
| 23 | [Headstart (Defunct)](https://www.tamtam.ai/c/headstart-defunct) (headstart.io)<br>This company uses advanced candidate screening to help recruiters identify potential and hire the best candidates, promoting fair and unbiased hiring practices | Human Resources Services | 🇬🇧 London | 224 | 2015 |
| 24 | [Mercans](https://www.tamtam.ai/c/mercans) (mercans.com)<br>Offers global payroll and EOR services, enabling businesses to manage payrolls across 160 countries with proprietary SaaS platforms and expert local support. | Human Resources Services | 🇬🇧 London | 216 | 2003 |
| 25 | [Mo](https://www.tamtam.ai/c/mo-london) (mo.work)<br>Mo offers a unique reward and recognition platform for managers to engage and appreciate their teams beyond traditional top-down approaches | Human Resources Services | 🇬🇧 London | 203 | 2015 |
| 26 | [Best Places to Work Certification Program](https://www.tamtam.ai/c/best-places-to-work-certification-program) (bestplacestoworkfor.org)<br>Global certification provider honoring organizations with excellent HR practices and employee experiences through rigorous assessments aligned with latest trends | Human Resources Services | 🇬🇧 London | 201 | 2017 |
| 27 | [Dabster](https://www.tamtam.ai/c/dabster) (dabster.net)<br>Talent management and workforce solutions provider specializing in SAP and PEGA, aiming to improve clients' productivity and profitability through strategic values and principles | Human Resources Services | 🇬🇧 London | 187 | 2007 |
| 28 | [Cezanne HR](https://www.tamtam.ai/c/cezanne-hr) (cezannehr.com)<br>Providing cloud-based HR and payroll software solutions covering recruitment, onboarding, administration, performance management, surveys, and payroll for businesses. | Human Resources Services | 🇬🇧 London | 184 | 2013 |
| 29 | [Join Talent](https://www.tamtam.ai/c/join-talent) (jointalent.co.uk)<br>Provides talent acquisition as a service, offering strategic consultancy and delivery support for recruitment models and employer branding to attract top talent. | Human Resources Services | 🇬🇧 Brechin | 180 | 2018 |
| 30 | [MOVE Guides](https://www.tamtam.ai/c/move-guides) (moveguides.com)<br>A global mobility management platform offering relocation, expatriate management, tax, payroll, and immigration services to over 100 companies worldwide | Human Resources Services | 🇬🇧 London | 177 | 2012 |
| 31 | [ECA International](https://www.tamtam.ai/c/eca-international) (eca.global)<br>Provides technology, data, and expertise to manage compensation and benefits for internationally mobile employees across various assignment durations. | Human Resources Services | 🇬🇧 London | 161 | 1971 |
| 32 | [Playroll](https://www.tamtam.ai/c/playroll) (playroll.com)<br>provides a global platform for businesses to hire, pay, and retain talent compliantly across 180+ countries with flat fees | Human Resources Services | 🇬🇧 London | 161 |  |
| 33 | [Peppy](https://www.tamtam.ai/c/peppy) (peppy.health)<br>Peppy is a health app connecting employees to expert care for various health challenges, improving well-being and productivity at work | Human Resources Services | 🇬🇧 London | 158 | 2018 |
| 34 | [Cintra HR & Payroll Services](https://www.tamtam.ai/c/cintra-hr-and-payroll-services) (cintra.co.uk)<br>Providing professional payroll and HR services with a personal, friendly approach to private companies, public sector, and educational institutions. | Human Resources Services | 🇬🇧 Newcastle upon Tyne | 158 | 1981 |
| 35 | [Veremark](https://www.tamtam.ai/c/veremark) (veremark.com)<br>A b2b background screening and reference checking platform streamlining hiring processes for companies, providing faster, data-compliant, and insightful checks for candidates | Human Resources Services | 🇬🇧 London | 156 | 2018 |
| 36 | [Matrix Security Watchdog](https://www.tamtam.ai/c/matrix-security-watchdog) (securitywatchdog.org.uk)<br>Global provider of digital pre-employment and background screening services, offering innovative solutions to protect businesses and individuals from fraudsters and criminals | Human Resources Services | 🇬🇧 Knowlhil | 156 | 1998 |
| 37 | [Independent Recruiter](https://www.tamtam.ai/c/independent-recruiter) (mailchi.mp)<br>Connecting independent recruitment consultants seeking improved working conditions and higher earnings through a collaborative platform | Human Resources Services | 🇬🇧 London | 156 | 2018 |
| 38 | [SD Worx UK](https://www.tamtam.ai/c/sd-worx-uk) (sdworx.co.uk)<br>Leading European provider of integrated HR solutions empowering organizations with smart technology, delivering services across the entire employee lifecycle globally | Human Resources Services | 🇬🇧 Manchester | 153 | 1945 |
| 39 | [Plumm](https://www.tamtam.ai/c/plumm) (hubs.ly)<br>Offers a unified HR platform for payroll, recruitment, learning, wellbeing, and compliance, streamlining employee lifecycle management with smart automations and real-time insights. | Human Resources Services | 🇬🇧 London | 152 | 2017 |
| 40 | [Pluxee UK](https://www.tamtam.ai/c/pluxee-uk) (pluxee.uk)<br>This company offers award-winning employee benefits, rewards, and recognition to bring more value to people's lives, focusing on opportunities and enjoyment | Human Resources Services | 🇬🇧 Milton Keynes | 151 | 1962 |
| 41 | [HR Connect](https://www.tamtam.ai/c/hr-connect) (hrconnect.org.uk)<br>Partnering with businesses to enhance human resources strategies and align with overall business goals | Human Resources Services | 🇬🇧 Kings Hill | 151 |  |
| 42 | [Hightekers](https://www.tamtam.ai/c/hightekers) (hightekers.com)<br>Streamlining business management for IT and engineering consultants and recruiters across Europe with premium services including tax management, contract negotiation, payroll, and more Join our growing community! | Human Resources Services | 🇬🇧 London | 150 |  |
| 43 | [Accurate Background (UK)](https://www.tamtam.ai/c/accurate-background-uk) (accurate.com)<br>A pre-employment screening company with a passion for setting new standards, prioritizing data security, and delivering outstanding screening experiences through human interactions | Human Resources Services | 🇬🇧 Brighton and Hove | 148 | 2006 |
| 44 | [rTriibe](https://www.tamtam.ai/c/rtriibe) (rtriibe.com)<br>rTriibe revolutionizes education recruitment with a simple, clear, and inclusive platform for connecting schools with educators, prioritizing transparency and fair compensation | Human Resources Services | 🇬🇧 Liverpool | 146 | 2019 |
| 45 | [LACE Partners](https://www.tamtam.ai/c/lace-partners) (lacepartners.com)<br>Global consultancy combining HR change experts with progressive technologies to help solve business challenges Passionate about unlocking company value through people | Human Resources Services | 🇬🇧 South Bank | 131 | 2014 |
| 46 | [xcd](https://www.tamtam.ai/c/xcd) (peoplexcd.com)<br>HR and Payroll software solution built on Salesforce for organizations with 250+ employees, simplifying processes and empowering HR teams to drive business success | Human Resources Services | 🇬🇧 Basingstoke | 123 | 2010 |
| 47 | [Advo](https://www.tamtam.ai/c/advo) (advo.co.uk)<br>An award-winning advisory with technology platforms for HR, Payroll, and Employee Benefits, empowering workforce control and offering corporate-style benefits management to SMEs | Human Resources Services | 🇬🇧 Aylesford | 122 | 1997 |
| 48 | [Elements](https://www.tamtam.ai/c/elements-london) (weareelements.io)<br>They revolutionize talent consultancy by embedding consultants within organizations like Spotify and Atlassian, driving transformative change and growth worldwide | Human Resources Services | 🇬🇧 London | 114 | 2009 |
| 49 | [Skills Alliance](https://www.tamtam.ai/c/skills-alliance) (skillsalliance.com)<br>Global Life Science workforce solutions company with 20 years of experience, providing talent acquisition solutions for pharmaceutical, biotech, and medical companies worldwide | Human Resources Services | 🇬🇧 London | 110 | 2005 |
| 50 | [Cogito](https://www.tamtam.ai/c/cogito) (cogitotalent.com)<br>This company specializes in HR solutions, offering services such as Outsourced and Project based HR, Learning & Development, Talent Acquisition, and Employer Branding | Human Resources Services | 🇬🇧 Bristol | 108 | 2014 |

## 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 13, 2026.

## More company lists in the United Kingdom

- [The largest companies in the United Kingdom](https://www.tamtam.ai/l/largest-companies-united-kingdom) (36,547)
- [Multinational companies in the United Kingdom](https://www.tamtam.ai/l/multinational-companies-united-kingdom) (7,458)
- [Financial services firms in the United Kingdom](https://www.tamtam.ai/l/financial-services-firms-united-kingdom) (3,711)
- [Financial Services companies in the United Kingdom](https://www.tamtam.ai/l/financial-services-companies-united-kingdom) (3,696)
- [Retail chains in the United Kingdom](https://www.tamtam.ai/l/retail-chains-united-kingdom) (3,289)
- [Professional services firms in the United Kingdom](https://www.tamtam.ai/l/professional-services-firms-united-kingdom) (2,706)
- [Software Development companies in the United Kingdom](https://www.tamtam.ai/l/software-development-companies-united-kingdom) (2,600)
- [Manufacturers in the United Kingdom](https://www.tamtam.ai/l/manufacturers-united-kingdom) (2,159)
- [Companies with in-house R&D in the United Kingdom](https://www.tamtam.ai/l/r-and-d-companies-united-kingdom) (1,930)
- [IT Services and IT Consulting companies in the United Kingdom](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-united-kingdom) (1,722)
- [Retail companies in the United Kingdom](https://www.tamtam.ai/l/retail-companies-united-kingdom) (1,596)
- [IT services companies in the United Kingdom](https://www.tamtam.ai/l/it-services-companies-united-kingdom) (1,583)
- [Hotel and hospitality groups in the United Kingdom](https://www.tamtam.ai/l/hospitality-groups-united-kingdom) (1,461)
- [Companies with a mobile app in the United Kingdom](https://www.tamtam.ai/l/companies-with-mobile-app-united-kingdom) (1,411)
- [Consulting firms in the United Kingdom](https://www.tamtam.ai/l/consulting-firms-united-kingdom) (1,298)
- [E-commerce companies in the United Kingdom](https://www.tamtam.ai/l/ecommerce-companies-united-kingdom) (1,246)
- [Hardware manufacturers in the United Kingdom](https://www.tamtam.ai/l/hardware-companies-united-kingdom) (1,239)
- [Family-owned companies in the United Kingdom](https://www.tamtam.ai/l/family-owned-companies-united-kingdom) (1,224)
- [Hospitality companies in the United Kingdom](https://www.tamtam.ai/l/hospitality-companies-united-kingdom) (1,204)
- [Critical infrastructure operators in the United Kingdom](https://www.tamtam.ai/l/critical-infrastructure-operators-united-kingdom) (1,195)
- [Wellness and Fitness Services companies in the United Kingdom](https://www.tamtam.ai/l/wellness-and-fitness-services-companies-united-kingdom) (1,151)
- [Retail Apparel and Fashion companies in the United Kingdom](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-united-kingdom) (1,085)
- [Subscription businesses in the United Kingdom](https://www.tamtam.ai/l/subscription-businesses-united-kingdom) (1,077)
- [Distributors and wholesalers in the United Kingdom](https://www.tamtam.ai/l/distributors-and-wholesalers-united-kingdom) (1,060)

## The same list elsewhere in United Kingdom

- [Human Resources Services companies in England](https://www.tamtam.ai/l/human-resources-services-companies-england) (101)
- [Human Resources Services companies in London](https://www.tamtam.ai/l/human-resources-services-companies-london) (46)

## The same list elsewhere

- [Human Resources Services companies in the world](https://www.tamtam.ai/l/human-resources-services-companies-in-the-world) (2,224)
- [Human Resources Services companies in Europe](https://www.tamtam.ai/l/human-resources-services-companies-in-europe) (1,251)

---

Source: https://www.tamtam.ai/l/human-resources-services-companies-united-kingdom