Sigma Recruitment
Sigma Recruitment is a Cardiff-based, specialist UK recruitment agency founded in 2005 that places permanent engineering, technical and manufacturing candidates for enterprise and start-up clients across automotive, pharmaceutical, aerospace, electronics and 10+ adjacent manufacturing sectors.
- Company typePrivate
- Founded2005
- HeadquartersCardiff, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Sigma Recruitment does
Sigma Recruitment Ltd is a privately held, Cardiff-based specialist recruitment agency founded in 2005 that places permanent engineering, technical, supply chain, procurement, logistics, scientific and graduate STEM candidates across the UK and internationally. The firm's vertical focus spans automotive, pharmaceutical, life science, aerospace, electronics, chemical, packaging, medical devices, steel, plastics, semiconductor and food manufacturing, with named enterprise clients including Rolls-Royce, Siemens and JCB alongside high-tech start-ups.
The operating model is a services-led platform built on a Bullhorn CRM containing a proprietary candidate database accumulated since 2005, augmented by an AI-assisted workflow that uses Anthropic's Claude to triage inbound applications, ChatGPT (via Candidately) to format CVs and candidate profiles, Otter.ai for interview transcription, Calendly for scheduling, and Zoom or Microsoft Teams for recorded video interviews. The website ranks #1 on Google for over 100 manufacturing-related keywords and supports a content-led funnel including job guides, a published 2025/26 Manufacturing Salary Guide, and a managed candidate newsletter.
Revenue is generated primarily through contingency placement fees (percentage of placed annual salary) and retained executive search mandates, with supplementary revenue from Speculative CV Marketing, public Candidate Focus profiles, psychometric testing, and career coaching. Distribution relies on multi-channel candidate sourcing — direct employer engagement, LinkedIn (with Managing Director Rhys Williams's 15,000+ connection personal brand), and syndicated posting across Totaljobs, Jobsite, CV-Library, Indeed and Reed — combined with self-serve online vacancy and CV submission forms. The firm employs between 1 and 10 people and operates under UK GDPR with ICO registration Z9312187 and ISO 27001-aligned security controls.
Sigma Recruitment firmographics
Firmographics- Name
- Sigma Recruitment
- Legal name
- Sigma Recruitment Ltd
- Website
- https://sigmarecruitment.co.uk
- Company type
- Private
- Founded year
- 2005
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Sigma Recruitment is a Cardiff-based, specialist UK recruitment agency founded in 2005 that places permanent engineering, technical and manufacturing candidates for enterprise and start-up clients across automotive, pharmaceutical, aerospace, electronics and 10+ adjacent manufacturing sectors.
- Ownership category
- akta.pro rank
Sigma Recruitment industry classification
Industry- Product category
- Engineering and Manufacturing Recruitment Services
- NAICS
- Employment Placement Agencies (561311), Employment Placement Agencies and Executive Search Services (56131)
- SIC
- Services-Employment Agencies (7361)
- akta.pro primary industry
- Talent Acquisition (Recruiting) & Applicant Tracking (ATS) (BPACAPAD)
Keywords
Where Sigma Recruitment is headquartered
LocationHeadquarters
- HQ city
- Cardiff
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Sigma Recruitment business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Marketing or Sales, Technology or R&D, Operations
Revenue model
- Contingency Recruitment: Traditional recruitment placement fees based on successful candidate placements, typically a percentage of the placed candidate's annual salary.
- Retained Executive Search: Retained search engagements for senior and executive-level positions, typically involving upfront fees and dedicated headhunting services.
- Candidate Services: Free career and CV review services, candidate focus profiles, and speculative CV marketing services for candidates.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Transaction based/ take rate | Pay-as-you-go | Contingency Recruitment - Standard placement service |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels6 records
Sigma Recruitment product offering
Product offeringCore offering
Sigma Recruitment is a specialist recruitment agency providing permanent placement services for engineering, technical, supply chain, procurement, logistics, management, scientific and graduate STEM roles across manufacturing sectors including automotive, pharmaceutical, life sciences, aerospace, electronics, chemical, packaging, medical devices, steel, plastics, semiconductor and food. The agency offers contingency recruitment (Sigma Elite), retained executive search and headhunting, alongside candidate marketing services such as speculative CV marketing and Candidate Focus profiles.
Product overview
Sigma Recruitment operates as a specialized engineering, manufacturing, and technical recruitment agency offering a platform-plus-services model. The core offerings include contingency recruitment (Sigma Elite), retained executive search & headhunting, and proactive candidate marketing schemes (Speculative CV Marketing and Candidate Focus). AI-powered features support the recruitment workflow including candidate matching via Bullhorn CRM, AI application triage using Claude, video interviews via Zoom/Teams, and automated CV keywording. The platform integrates with job boards, LinkedIn, and calendar scheduling tools. Additional services include psychometric testing, salary benchmarking, and career coaching.
Differentiator
Problem solved
Functional benefit
Products and services
- Sigma Elite Recruitment Premium contingency recruitment service offering enhanced candidate sourcing and screening for permanent engineering, technical and manufacturing positions across the UK and internationally.
- Executive Search and Headhunting Retained search and headhunting service for senior-level and specialist engineering, technical and manufacturing roles, typically involving upfront fees and dedicated headhunting.
- Speculative CV Marketing Proactive marketing service where candidates' CVs are shared with current and prospective clients under privacy controls, with name and contact details withheld until candidate permission is granted.
- Candidate Focus Profile Public candidate profile creation service displaying skills, experience and achievements on the Sigma website and social channels, searchable by sector, keywords and location.
- Psychometric Testing Personality profiling and psychometric assessment services conducted with candidate consent as part of Sigma's structured screening process for engineering, technical and manufacturing roles.
- Career Coaching Coaching services for individual candidates, including feedback sessions, assessments and career guidance to support career progression.
- Salary Benchmarking Salary analysis and market benchmarking service for engineering and manufacturing compensation, supported by AI tooling and the published 2025/26 Manufacturing Salary Guide.
Quantifiable outcome
- OEE improvements from 60% to 98%
- +4 more outcomes
Companies that use Sigma Recruitment
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles3 records
Sigma Recruitment technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration11 records
AI capability9 records
Feature2 records
Sigma Recruitment partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights5 records
Sigma Recruitment competitors and assessment
Company assessmentBroad incumbents
- SThree: Global STEM-focused staffing group publicly listed on the London Stock Exchange. Larger incumbent offering contract and permanent engineering recruitment across multiple geographies, overlapping with Sigma's technical and engineering vertical.
- Reed: UK-headquartered generalist recruitment group with engineering, technical, and manufacturing specialisms. Much larger footprint than Sigma but competes for the same mid-market permanent engineering mandates.
- Hays: FTSE-listed global professional recruitment group with a substantial UK engineering and manufacturing practice. Broader portfolio than Sigma but competes for the same engineering hiring budgets and PSL panels.
- Pertemps: UK-based recruitment group with strong industrial, engineering, and manufacturing exposure through both permanent and temporary offerings. Larger incumbent with broader geographic network competing for similar engineering clients.
- Robert Half: Global professional recruitment firm with a UK engineering, technical, and manufacturing practice. Larger incumbent offering similar permanent placement and search services to enterprise clients.
- Michael Page: Global professional recruitment brand with a dedicated engineering, manufacturing, and technical sub-practice. Larger incumbent offering similar permanent placement services to engineering clients.
Direct peers
- Morson Group: UK-headquartered specialist recruiter in engineering, technical, and skilled trade workforce solutions. Competes with Sigma for engineering and manufacturing permanent mandates, though at materially larger scale.
- ATA Recruitment: UK technical and engineering recruitment specialist serving manufacturing, aerospace, and industrial clients. Operates a similar vertical-specialist model with contingency and search services overlapping Sigma's offering.
- Bennett & Game Recruitment: UK recruitment firm with strong engineering, manufacturing, technical, and construction verticals. Comparable specialist boutique competing for similar engineering and technical permanent placements.
- Jonathan Lee Recruitment: Long-established UK specialist recruitment agency focused on engineering, manufacturing, and technical permanent placements. Direct competitor to Sigma in the same vertical and geography.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Sigma Recruitment social profiles
Digital presenceSigma Recruitment compliance and trust
Trust signalCompliance4 records
Sigma Recruitment financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sigma Recruitment leadership team
Management profileNumber of profiles
Profiles1 record
Sigma Recruitment funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sigma Recruitment M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sigma Recruitment
What does Sigma Recruitment do?
Sigma Recruitment is a specialist recruitment agency providing permanent placement services for engineering, technical, supply chain, procurement, logistics, management, scientific and graduate STEM roles across manufacturing sectors including automotive, pharmaceutical, life sciences, aerospace, electronics, chemical, packaging, medical devices, steel, plastics, semiconductor and food. The agency offers contingency recruitment (Sigma Elite), retained executive search and headhunting, alongside candidate marketing services such as speculative CV marketing and Candidate Focus profiles.
Is Sigma Recruitment a public or private company?
Sigma Recruitment is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Sigma Recruitment founded?
Sigma Recruitment was founded in 2005. It employs 1 to 10 people.
Where is Sigma Recruitment based?
Sigma Recruitment is headquartered in Cardiff, United Kingdom, in the Europe region.
How does Sigma Recruitment make money?
Three revenue lines are on record. Contingency Recruitment is the primary driver. The others are retained Executive Search and candidate Services.
Who are Sigma Recruitment's main competitors?
Broad incumbents on record are SThree, Reed, Hays, Pertemps, Robert Half and Michael Page. Direct peers are Morson Group, ATA Recruitment, Bennett & Game Recruitment and Jonathan Lee Recruitment.
Does Sigma Recruitment have an API?
No public API is recorded for Sigma Recruitment.
What industry is Sigma Recruitment in?
Sigma Recruitment's product category is Engineering and Manufacturing Recruitment Services. Its primary akta.pro industry code is BPACAPAD, Talent Acquisition (Recruiting) & Applicant Tracking (ATS). Its NAICS code is 561311 and its SIC code is 7361.