Professional Services Recruitment Agency UK | Legal, HR & Marketing | Sigma

Elite Professional Services Talent.

We connect Law Firms and Corporate Businesses with exceptional **Legal, HR, Marketing, and Business Support** professionals.

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Trusted by Top 100 Law Firms & SMEs

96%

Retention Rate

48h

CV Shortlist

5k+

Vetted Candidates

200+

Placements/Year

Why Choose Sigma?

We look beyond the CV. We match skills, culture, and long-term potential.

Precision Matching

We use competency-based interviewing to ensure candidates not only have the skills but fit your firm's unique culture.

Sector Expertise

Our consultants specialize in specific verticals (Legal, HR, Marketing), giving you deep market insights and salary benchmarking.

Rapid Turnaround

From brief to shortlist in 48 hours for standard roles. We maintain an active pool of pre-screened professionals.

End-to-End Support

We manage the entire process: headhunting, screening, interview scheduling, offer negotiation, and onboarding support.

"We needed a Senior Legal Counsel on short notice. Sigma understood the brief immediately and presented the perfect candidate within 48 hours. A seamless experience."

— Victoria Hammond

Managing Partner, Hammond & Co.

Request Professional Staff

Tell us your requirements. We will contact you within **4 hours** to discuss your hiring strategy.

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