HR Consulting Companies in London: 382 Active Firms (2026)
HR consulting companies advise employers on people strategy, workforce change and compliance, serving clients across London’s public and private sectors.
Buying decisions tend to sit with people leadership, finance, legal or procurement teams, depending on whether the engagement is advisory, operational or change-led. The main buying centres are organisational design, employee relations, reward, learning and development, talent management, and workforce transformation. Clients are usually mid-market or enterprise employers across private, public and not-for-profit settings, rather than consumers. Typical work ranges from retained advice and policy reviews to outsourced people operations and programme-based transformation, with delivery models spanning specialist boutiques and larger advisory teams.
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London has 382 active HR consulting companies in this cohort, giving the capital a sizeable pool of people-advisory firms without implying a much wider registered market. Reported employment totals 1,516 people among 126 firms with headcount figures, which points to a market made up largely of small advisory practices alongside a narrower group with larger delivery teams. The commercial centre of gravity is therefore likely to sit around project-led consulting, retained HR support and outsourced people operations, rather than employer-of-record scale alone.
Advisory HR work is not generally treated as a single licensed activity in the UK. The position changes where a provider introduces work-seekers to hirers or supplies temporary workers, because the Employment Agencies Act and the Conduct of Employment Agencies and Employment Businesses Regulations can apply across private, public and not-for-profit settings. GOV.UK distinguishes between employment businesses supplying temporary work-seekers and employment agencies introducing candidates for employment. The Fair Work Agency enforces conduct rules covering agreed terms, restrictions on work-finding fees, Key Information Documents and compliance records, while the CIPD provides the main professional-body context for HR, learning and development, organisational development and people roles.
Demand appears tied less to generic HR advice than to specific workforce problems: restructuring, employee relations risk, reward pressure, skills gaps and operating-model change. Smaller consultancies tend to compete on sector familiarity or senior practitioner access, while larger advisory teams are better placed for multi-function programmes. The cohort looks mature rather than newly formed, with only a minority of recent incorporations and a small set of revenue-scaled operators. Compliance expectations around temporary labour and intermediary activity may keep some firms investing in governance, even where their core work remains advisory.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
382
Active firms
2026
22
Above £5M
Reported turnover
39
Recent incorporations
Since 2022
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Key facts
About 5% of the trading cohort reports turnover above £5M (22 of 382 firms) — the rest sits below that revenue band.
10% of the cohort was incorporated since 2022 (39 firms), so a sizeable share is in its first few filing cycles.
HR consulting is not generally a single licensed activity in the UK, but work-seeker introduction or temporary-worker supply can fall under the Employment Agencies Act 1973 and the Conduct of Employment Agencies and Employment Businesses Regulations 2003.
The Fair Work Agency enforces rules covering Key Information Documents, work-seeker terms, work-finding fees and compliance records for covered employment intermediaries.
REC puts the recruitment industry’s contribution to the UK economy at £40.6 billion in 2025, equal to 1.6% of UK GVA.
Temporary and contract placements account for 76.7% of recruitment sector GVA, making employment-business boundaries relevant for HR advisory and outsourced people-service models.
CIPD describes itself as the professional body for HR, L&D, OD and people professionals, with over 160,000 members globally.
Top London HR Consulting companies
Financial sub-scores
Computed from 5 filingsProvides HR consulting and people management services including rewards and pensions advice, HR systems, case management and organisational transformation programmes. Works with public and private…
Targets public and private sector organisations in UK health markets, including NHS trusts, NHS England and the Department of Health, as well as businesses with complex workforce transformation needs.
Financial Health
StableStable · -7% CAGR over 4y
Location
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Computed from 4 filingsProvides HR consulting, organisational development and recruitment services, including executive search, outsourced HR support, talent management, succession planning and organisational restructuring…
Serves CEOs, chairs, boards, private equity and venture capital investors, and HR leaders in startups, SMEs, not-for-profits, public sector bodies and corporates, including music, media, retail,…
Financial Health
StrongStrong · Hiring · 10% CAGR over 3y
Location
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Computed from 4 filingsProvides HR consultancy and support services including interim HR professionals, HR recruitment and executive search, HR outsourcing, employee relations advice, leadership coaching, learning and…
Sells to UK businesses of all sizes, from start-ups to FTSE-listed firms, needing HR support. Serves founders, people managers and senior leadership teams across sectors with outsourcing, interim HR,…
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 3y
Location
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Provides management consultancy focused on organisational health, including strategy development, organisation design, transformation and change management, culture and leadership development, and…
Serves senior leaders and management teams in large organisations across private, public and nonprofit sectors, including defence, education, energy, financial services, healthcare, retail, telecoms,…
Financial Health
N/AN/A
Location
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Computed from 5 filingsProvides workforce and organisational transformation consulting for public sector bodies, including operating model design, managed staffing services, supplier sourcing, end‑to‑end recruitment…
Serves public sector organisations, especially Civil Service and NHS teams, targeting leaders, HR functions and hiring managers responsible for transformation programmes, workforce structures and…
Financial Health
WeakWeak · -5% CAGR over 4y
Location
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Computed from 5 filingsProvides human resources and organisational development consultancy, including workforce change management, employee relations support, leadership coaching and mentoring, and design of people…
Serves NHS trusts, public sector bodies and private sector organisations with complex workforce and organisational development needs, including senior leaders, boards and HR teams.
Financial Health
StrongStrong · Hiring · 6% CAGR over 4y
Location
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Computed from 5 filingsProvides human resources and organisational development consultancy to public and private sector organisations, including change management support, employee relations advice, workforce programme…
Serves NHS trusts, public sector bodies and private sector organisations needing senior HR, organisational development, employee relations and workforce change support.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides HR support services for schools and academies, including advice on employment matters, disciplinary and grievance investigations, recruitment advertising, occupational health support,…
Serves schools, academies and educational settings, primarily in Hillingdon, neighbouring West London boroughs and Thames Valley counties, targeting school leaders and administrative teams…
Financial Health
StableStable · -2% CAGR over 2y
Location
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Computed from 5 filingsProvides human resources consulting and talent acquisition services, including recruitment, HR advisory, leadership and culture development, and diversity and inclusion programme support. Works with…
Serves startups, nonprofits, law firms, family-owned businesses and corporates from small firms to Fortune 500s, across manufacturing, retail, technology, consulting, consumer products and…
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides outsourced HR consultancy to hedge funds, asset managers and financial services firms, including HR software implementation, employee relations advice, policy development, performance…
Serves B2B financial services firms in London, including hedge funds, asset managers, private equity, real estate funds, family offices, UCITS platforms, fintech and investment management businesses.
Financial Health
StrongStrong · Growing, Hiring · 5% CAGR over 4y
Location
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Computed from 5 filingsProvides recruitment and executive search services alongside workforce and organisational consulting. Advises clients on talent acquisition, organisational design, change management, and hiring…
Serves B2B organisations from start-ups to global corporations, particularly in financial services, professional services, commerce and industry, with buyers involved in talent, workforce strategy…
Financial Health
StableStable · -64% CAGR over 4y
Location
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Computed from 5 filingsProvides outsourced human resources and business support services, including HR strategy development, employment law and compliance reviews, mediation, recruitment and headhunting, interim and…
Serves B2B clients of all sizes, particularly organisations with onsite teams in property, facilities management, hospitality, office and retail environments, as well as employers needing external…
Financial Health
WeakWeak · Hiring · 24% CAGR over 4y
Location
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Computed from 3 filingsProvides HR transformation consultancy and advisory services, including implementation and optimisation of HR technology platforms, HRIS and talent management systems. Supports organisations with…
Serves HR, people operations and transformation leaders in businesses and public-sector organisations across multiple industries, especially those using HR technology platforms such as Cornerstone,…
Financial Health
StableStable · Hiring · 8% CAGR over 2y
Location
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Computed from 3 filingsProvides HR technology consultancy and implementation services, specialising in SAP SuccessFactors. Offers strategic HR advisory, payroll optimisation, cloud integration, system implementation,…
Serves B2B organisations, particularly HR, payroll, operations and technology leaders seeking SAP SuccessFactors and HR transformation support across multiple industries and geographies.
Financial Health
HealthyHealthy · Hiring · 38% CAGR over 2y
Location
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Computed from 5 filingsProvides management consultancy focused on organisational culture and people strategy, including leadership alignment, post‑merger integration, AI and technology adoption, employee experience,…
Serves B2B organisations, particularly leadership and people teams in companies managing growth, M&A, AI adoption, productivity, retention, inclusion, culture change, and regulatory conduct…
Financial Health
HealthyHealthy · Hiring · 46% CAGR over 4y
Location
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Computed from 3 filingsProvides organisational consulting focused on leadership development and culture change. Offers senior‑executive profiling, coaching, and team effectiveness programmes, and advises companies and…
Serves B2B clients: large or leading organisations, senior executives and leadership teams, with a dedicated focus on private equity firms and their portfolio companies.
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides organisational change and transformation consulting, including organisation design, change management, leadership and culture development, and payroll or HR systems transformation. Advises…
Serves large businesses and public sector organisations undergoing transformation, including HR, leadership and operations teams in global enterprises, consumer brands and government departments.
Financial Health
WeakWeak · -3% CAGR over 4y
Location
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Computed from 3 filingsProvides organisational culture and diversity consultancy services, including research and strategy, training and capability building, culture change programmes, and events or speakers to help…
Serves HR, people, DEI and leadership teams at large global businesses seeking support on workplace culture, inclusion, wellbeing and employee resource groups.
Financial Health
StableStable · -34% CAGR over 2y
Location
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Computed from 3 filingsProvides HR consultancy and outsourced people management services to businesses, including retained HR support, employee relations advice, pay and benefits guidance, HR policy and process…
Serves forward-thinking businesses, particularly founder-owned and growing organisations whose leaders need flexible access to People and Culture expertise instead of hiring an in-house HR manager.
Financial Health
HealthyHealthy · Growing · 2% CAGR over 2y
Location
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Computed from 5 filingsProvides consulting, implementation and managed services for Oracle HCM and ERP cloud systems. Offers payroll solutions, global payroll integration, HR process optimisation, system upgrades,…
Serves multinational enterprises and UK businesses using Oracle HCM/ERP, targeting HR, payroll and finance teams in sectors such as pharma, property management, retail, supply chain and financial…
Financial Health
StrongStrong
Location
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Provides recruitment and executive search services alongside HR consulting. Offers leadership development, coaching and assessments, career transition and outplacement support, compensation…
Serves businesses and HR leaders needing talent and people support, including senior HR managers, HR directors, CHROs and executives. Also targets job seekers and HR professionals through career…
Financial Health
N/AN/A
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Computed from 5 filingsProvides recruitment, HR consultancy and outsourced payroll services to employers. Offers talent search and selection, HR strategy and advice, organisational development, executive coaching, payroll…
Serves UK employers, from small businesses to larger organisations, across manufacturing, construction, engineering, financial services, technology, retail, hospitality, logistics and other sectors.
Financial Health
StrongStrong
Location
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Computed from 3 filingsProvides human capital advisory and executive coaching services to private equity, venture capital and financial services firms, including leadership team design, organisational strategy, partnership…
Serves B2B clients in financial services, mainly private equity, private credit and venture capital firms, including PE-backed chairs and CEOs, managing partners, leadership teams and executives.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 2y
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Computed from 3 filingsProvides management consulting services including strategy development, organisational design, business transformation, culture and leadership development, sustainability, and technology advisory.…
Serves businesses, public sector bodies and nonprofits across defence, education, energy, entertainment, financial services, health, media, retail, telecoms, technology, transport and construction.
Financial Health
HealthyHealthy · 0% CAGR over 2y
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Computed from 5 filingsProvides pay and reward consultancy services to organisations, including reward strategy design, salary and benefits benchmarking, job evaluation, pay gap and equal pay analysis, executive…
Serves organisations’ HR, reward and remuneration leaders, including executive teams and Remuneration Committees, that need support with pay, benefits, performance management and employee reward…
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsProvides human resources consultancy services including HR advisory support, executive search and recruitment for senior roles, employee development and training programmes, and strategic people and…
Sells to businesses needing HR support, executive recruitment, people development and strategic people advice, likely targeting business owners, leadership teams and managers seeking outsourced HR…
Financial Health
WeakWeak · -12% CAGR over 4y
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Computed from 3 filingsProvides human resources consulting focused on reward and compensation strategy, including salary surveys, pay benchmarking, job evaluation and pay structure design. Offers HR analytics, gender pay…
Serves B2B HR, reward, compensation and operations leaders in hotels, hospitality, airlines, travel and real estate, including regional and corporate teams across EMEA, CALA and APAC markets.
Financial Health
HealthyHealthy · Hiring · 22% CAGR over 2y
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Computed from 2 filingsProvides outsourced HR consultancy and recruitment services to businesses, including retained HR support, HR documentation, employment law compliance, employee relations management, organisational…
Serves SMEs and employers across the UK, including businesses in care, charities, construction, education, healthcare, hospitality, IT, manufacturing, professional services and leisure.
Financial Health
StrongStrong · Growing · 0% CAGR over 1y
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Computed from 5 filingsProvides business transformation consulting focused on finance, HR and payroll operations. Offers ERP system selection and implementation support, digital transformation advisory, and recruitment…
Serves businesses undertaking Finance, HR and Payroll transformation, particularly organisations selecting or deploying ERP/HCM platforms, plus implementation partners seeking specialist project…
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 4y
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Computed from 5 filingsProvides management consultancy and research on the future of work, advising organisations on workplace strategy, digital workplace technologies, organisational change and flexible working models,…
Serves businesses undergoing workplace and organisational change, particularly corporate leaders responsible for workplace strategy, HR, real estate, technology, culture, wellbeing and productivity.
Financial Health
DistressedDistressed · -64% CAGR over 4y
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Computed from 3 filingsProvides talent assessment and leadership development services for organisations. Uses psychometric assessments, 360 feedback tools and coaching programmes to support recruitment, leadership…
Serves B2B organisations of all sizes worldwide, particularly HR, talent and senior leadership teams across sectors such as technology, finance and nutrition.
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 2y
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Computed from 5 filingsProvides workplace inclusion consulting services. Works with organisations to assess culture, develop inclusion strategies, deliver leadership training and workshops, and embed inclusive practices…
Sells to businesses seeking more inclusive workplace cultures, especially leadership teams and decision-makers at established and multinational organisations across multiple sectors. Targets…
Financial Health
DistressedDistressed · -69% CAGR over 4y
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Computed from 5 filingsProvides HR consulting and outsourcing services including talent acquisition, executive search, recruitment, leadership development, payroll administration, and outplacement. Advises organisations on…
Serves B2B employers and HR leaders in organizations of all sizes, plus executives referred for career transition, seeking talent, leadership and workforce support.
Financial Health
StableStable · -59% CAGR over 4y
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Computed from 5 filingsProvides talent research and recruitment consulting, including executive search, talent mapping and pipelining, organisational and reward intelligence, and diversity, equality and inclusion…
Serves HR, talent acquisition, executive search and DEI leaders in complex private and public sector organisations, non-profits and private equity firms, working with in-house talent teams…
Financial Health
StrongStrong · Growing, Hiring · 12% CAGR over 4y
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Computed from 5 filingsProvides organisational consulting focused on leadership development, employee engagement and culture change. Uses research, employee insight tools and analytics to assess organisations, advise…
Serves B2B organisations from small fast-growth start-ups to large FTSE and Fortune corporates, targeting senior leaders and people/HR teams responsible for leadership, engagement, culture and…
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 5y
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Computed from 5 filingsProvides outsourced human resources services to businesses, including HR consultancy and support, employee relations advice, recruitment and restructuring assistance, staff training and development…
Serves SMEs across the South East and London, including owner-managed businesses and organisations with small or overstretched in-house HR teams.
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 4y
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Computed from 2 filingsProvides HR consulting and recruitment marketing services, helping organisations attract, hire and retain staff. Advises on people operations strategy, recruitment campaigns, workforce data analysis…
Targets B2B buyers: People Operations, HR and talent acquisition leaders in employers managing high-volume or strategic hiring, workforce transformation, recruitment marketing and HR technology…
Financial Health
HealthyHealthy · Hiring · 57% CAGR over 1y
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Computed from 5 filingsProvides leadership development and management skills training through workshops, coaching and bespoke programmes. Offers personal, executive, corporate and team coaching, organisational consulting,…
Serves public and private sector organisations with people managers, leadership teams and employees, alongside individual private clients seeking personal or career coaching.
Financial Health
DistressedDistressed · -22% CAGR over 4y
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Computed from 3 filingsProvides organisational development consultancy including leadership development programmes, executive coaching, culture diagnostics and facilitated strategy development. Works with companies…
Serves B2B clients across diverse sectors, particularly leaders, executive teams and HR/OD functions in organisations that are growing, merging, innovating, restructuring or operating across multiple…
Financial Health
StableStable · -15% CAGR over 2y
Location
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Computed from 5 filingsProvides human capital management services to financial and professional services firms, including specialist recruitment, executive search, change and technology consulting, early‑career talent…
Sells to businesses, primarily financial and professional services firms, including investment management clients. Also serves employers needing recruitment, executive search, change, technology and…
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 5y
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Provides global employment services including employer of record, international payroll management, contractor compliance, talent acquisition, immigration support, and HR advisory. Also offers entity…
Serves B2B organisations hiring or managing international teams, including enterprises, scale-ups, NGOs, private equity firms and portfolio companies with workforces across multiple countries.
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Computed from 5 filingsProvides behavioural science and organisational psychology consulting to businesses, including leadership coaching, strategy development, organisational change support, and programmes to shape…
Serves B2B senior leaders, executive teams and organisational change stakeholders in modern, often multinational businesses, including fintech and conferencing groups, focused on culture and…
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
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Computed from 4 filingsProvides management consultancy focused on organisational performance, employee engagement, and workplace culture. Conducts diagnostics, coaching, and advisory services to align business strategy,…
Serves organisations seeking people, culture and performance change, including defence, online retail, finance, motorsport and steel clients. Targets senior leaders managing workforce engagement,…
Financial Health
HealthyHealthy
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Computed from 5 filingsProvides executive remuneration consulting to listed and private companies. Advises remuneration committees on executive pay structures, incentive plans and governance, and offers implementation and…
Serves remuneration committees and leadership teams at UK listed companies, AIM businesses and unlisted organisations, including private equity-, venture capital- and mutual-owned companies, plus…
Financial Health
StableStable · 0% CAGR over 4y
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Computed from 5 filingsProvides human resources consulting and coaching services, including recruitment strategy, HRIS system optimisation, leadership and talent development, strategic HR planning, and employee relations…
Serves B2B organizations, especially business leaders and HR teams responsible for recruitment, HRIS, leadership development, talent management, strategic planning and employee relations.
Financial Health
HealthyHealthy · -16% CAGR over 4y
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Computed from 2 filingsProvides global employment services including employer of record, international payroll, HR consultancy, visa and immigration support, and contractor compliance. Helps organisations hire, pay, and…
Serves businesses expanding internationally, especially employers hiring or managing staff across borders, with stated industry focus on education, technology and non-profit organisations.
Financial Health
StrongStrong · Growing · 0% CAGR over 1y
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Computed from 5 filingsProvides organisational development and workplace consultancy services, including executive and team coaching, leadership development, conflict resolution and mediation, culture change programmes,…
Serves businesses and other organisations, targeting senior leaders, boards, HR and people teams responsible for workforce culture, leadership, inclusion, team performance and workplace conflict.
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
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Computed from 4 filingsProvides recruitment and workforce consultancy services, including executive search, professional recruitment, large-scale staffing deployment, workforce optimisation, and HR advisory. Works with…
Serves employers and public-sector organisations across professional services, technology, telecoms, finance, manufacturing, retail, logistics, health, social care, government, education,…
Financial Health
WeakWeak
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Computed from 5 filingsProvides human resources consulting, recruitment services, and compensation planning. Works with organisations to design HR strategies, hire staff, review people operations, and develop pay…
Serves B2B technology companies and non-profit organisations, particularly entrepreneurs and leaders needing support with people operations, hiring, HR strategy and compensation planning.
Financial Health
DistressedDistressed · 0% CAGR over 4y
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How London HR Consulting companies work and how to sell to them
What they do
London HR consultancies usually earn revenue through time-based advisory fees, fixed-price projects and retainer agreements. Engagement values are typically linked to consultant seniority, number of workshops, delivery length and whether implementation sits with the consultancy or the client. Some firms combine advisory work with outsourced HR administration or interim people-operations support, which shifts pricing towards monthly retainers or day-rate capacity. The service shape is professional services rather than software, though templates, diagnostics and benchmark reports may be packaged around repeatable work.
Who they sell to
Most sell to employers with enough workforce complexity to justify outside advice: mid-market companies, enterprise groups, public bodies and not-for-profit organisations. Buyers are usually HR directors, chief people officers, CFOs, general counsel, COOs or procurement teams, depending on the risk profile of the work. Small policy reviews can be agreed directly by people leaders, while reward redesign, restructuring support and workforce transformation tend to need finance, legal and procurement sign-off. Routes to market are mostly direct sales, referrals, framework agreements and formal RFP processes.
What they buy
Most HR consulting firms tend to spend on systems and services that improve delivery efficiency, client evidence and risk control. Common categories include CRM, proposal management, project accounting, time recording, knowledge management, document automation, electronic signature, analytics and client reporting. They also buy professional indemnity cover, employment-law support, accountancy, payroll advice, recruitment, cyber security, data protection support and sector marketing. Firms that touch worker introductions or temporary labour governance may also need compliance workflow, audit tooling, staff training and record-keeping processes that stand up to client or regulator scrutiny.
Why and how to sell to them
HR consulting buyers tend to evaluate vendors when utilisation becomes harder to manage, new consultants join, client work shifts from ad hoc advice to repeatable programmes, or employment-intermediary obligations create more record-keeping pressure. Other triggers include leadership change, a move into public-sector tendering, larger client mandates, outsourced people-operations work or a need to evidence delivery quality across several workstreams. Outbound messages are usually stronger when they name a specific operating constraint, such as margin leakage, proposal conversion, compliance workload, consultant capacity or client reporting, rather than making a general growth claim.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
Also in London
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Frequently asked questions
How many HR consulting companies are there in London?
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Which are the largest HR consulting companies in London?
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What SIC codes does this use?
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