HR Strategy for
London Business.
We serve as your dedicated, strategic HR partner. From employment law compliance to talent optimization, we help London's most ambitious companies scale safely.
500+
London Directors Supported
Comprehensive People Solutions.
Scalable HR support designed for the lifecycle of your business.
Outsourced HR Director
Strategic HR advice without the full-time headcount. We handle organizational design, culture, and growth planning for you.
Employment Law
Stay compliant with UK legislation. We manage contracts, handbooks, and complex disputes to minimize risk.
- Tribunal Representation
- Settlement Agreements
- TUPE Transfers
- Redundancy Planning
Employee Relations
Expert handling of disciplinaries, grievances, and absence management.
Wellbeing & Benefits
Designing competitive retention packages and wellness initiatives.
Tailored for London's Economy.
We understand the specific people challenges across key industries.
Finance & Legal
Managing high-performance cultures, partnership agreements, and regulatory compliance (SMCR) for City firms.
Tech & Startups
Scaling culture rapidly, managing remote teams, and structuring share options for Old Street & Shoreditch ventures.
Hospitality
Handling high turnover, seasonal contracts, and tip/tronc policy compliance for West End venues.
Healthcare
CQC compliance checks, mandatory training tracking, and shift management policies.
Manufacturing
Health & safety discipline, union relations, and shift pattern negotiations.
Retail
Multi-site communication, seasonal onboarding, and performance management.
Construction
Subcontractor (CIS) agreements, site safety compliance, and project-based contracts.
Logistics
Driver compliance management, working time directive checks, and agency staff handling.
Recruitment Agencies
Internal staff retention strategies, commission structure policies, and high-growth onboarding.
"Sigma's HR team navigated a complex TUPE transfer for us during our recent acquisition. Their commercial awareness and attention to detail were invaluable."
"Having Sigma as our outsourced HR Director gave us the confidence to scale our team from 10 to 50 employees in under a year. Highly recommended."
HR, Simplified.
We aren't a call center reading from a script. We are a team of London-based HR professionals providing commercial, pragmatic advice to protect your business.
London HQ
Real experts you can meet.
CIPD Qualified
Certified professionals.
24/7 Advice Line
Support whenever needed.
Liability Insurance
Tribunal indemnity cover.
Speak to an HR Expert
Fill out the form below. We'll contact you within 2 hours to discuss your HR needs.