G3 Engineering
G3 Engineering is a Glasgow-based civil, structural, and geo-environmental engineering consultancy, founded in 1978, serving Scottish housing associations, local authorities, NHS trusts, and private developers with integrated design, brownfield remediation, and Principal Designer/CDM services.
- Company typePrivate
- Founded1978
- HeadquartersGlasgow, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingServices
What G3 Engineering does
G3 Engineering (legally G3 Consulting Engineers Ltd) is a privately held civil, structural and geo-environmental engineering consultancy headquartered in Glasgow, Scotland, originally formed in 1978 and previously known as Scott Bennett Associates. The firm underwent a management buy-out in 2019 and is now led by Managing Director Colin Campbell and Director Brian Hamilton, both chartered structural engineers with 30+ years of experience.
The company delivers three integrated service lines — civil and structural engineering, geo-environmental engineering (including contaminated land investigation and remediation design), and Principal Designer/CDM advisory services — across residential, commercial, refurbishment and public-sector projects. Its underlying technical base combines traditional, steel, timber frame and hybrid construction methods with specialist Passivhaus and brownfield regeneration expertise, evidenced by its delivery of Dundashill Phase 3, currently Scotland's largest Passivhaus development.
G3 generates revenue through fee-based professional services contracts, with a B2B sales-led go-to-market targeting Scottish housing associations (e.g., Link Group, Govan HA, Glasgow HA, Cube HA), local authorities (City of Edinburgh Council, South Lanarkshire Council), NHS trusts, and private developers. The firm holds no external capital, has 11-50 employees, operates exclusively within Scotland, and markets primarily through project case studies, industry awards, and professional networks rather than paid channels.
G3 Engineering firmographics
Firmographics- Name
- G3 Engineering
- Legal name
- G3 Consulting Engineers Ltd
- Website
- https://g3eng.co.uk
- Company type
- Private
- Founded year
- 1978
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- G3 Engineering is a Glasgow-based civil, structural, and geo-environmental engineering consultancy, founded in 1978, serving Scottish housing associations, local authorities, NHS trusts, and private developers with integrated design, brownfield remediation, and Principal Designer/CDM services.
- Ownership category
- akta.pro rank
G3 Engineering industry classification
Industry- Product category
- Civil, Structural and Geo-Environmental Engineering Consultancy
- NAICS
- Engineering Services (541330), Engineering Services (54133), Geophysical Surveying and Mapping Services (54136)
- SIC
- Services-Engineering Services (8711)
- akta.pro primary industry
- Civil & Structural Engineering Consulting (BPAHAIAA)
- akta.pro secondary industry
- Construction Engineering & Constructability Consulting (BPAHAIAN)
Keywords
Where G3 Engineering is headquartered
LocationHeadquarters
- HQ city
- Glasgow
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
G3 Engineering business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales
Revenue model
- Professional Engineering Services: Fee-based consulting services for civil engineering, structural engineering, geo-environmental investigation, and Principal Designer/CDM services. Revenue generated through professional service contracts with public and private sector clients on construction and development projects.
Go-to-market motion2 records
Distribution channels1 record
Marketing channels3 records
G3 Engineering product offering
Product offeringCore offering
G3 Engineering is a civil, structural and geo-environmental engineering consultancy that delivers integrated design and advisory services from feasibility through detailed design to construction and beyond. Its core offering combines civil and structural engineering (roads, drainage, foundations, structures, utilities, flooding) with geo-environmental services (desk studies, site investigation, risk assessment, remediation strategies and validation) and Principal Designer/CDM services delivered under an ISO9001 quality management system. The firm primarily serves housing associations, local authorities, NHS trusts, charities and private developers undertaking residential, commercial, refurbishment and public-sector construction projects across Scotland.
Product overview
G3 Engineering is a civil, structural and geo-environmental engineering consultancy originally formed in 1978. The company operates as a single unified service offering rather than a platform-plus-modules architecture, providing three integrated core service lines: Civil and Structural Engineering, Geo-environmental Engineering, and Principal Designer/CDM Services. These services are delivered seamlessly in-house, allowing an integrated and holistic approach to each project across the public and private sectors.
Differentiator
Problem solved
Functional benefit
Products and services
- Civil and Structural Engineering Full range of civil and structural engineering services from feasibility through detailed design to construction and beyond, covering roads, drainage, foundations, structures, utilities and flooding for residential, commercial, refurbishment and public-sector projects in Scotland.
- Geo-environmental Engineering Comprehensive geo-environmental services including desk studies, site investigation, risk assessment, remediation strategies, grout consolidation design and validation of remedial works, primarily supporting brownfield housing regeneration projects for housing associations, developers and public bodies.
- Principal Designer / CDM Services Principal Designer/CDM consultancy delivered since 1995 in compliance with the Association for Project Safety scope, covering full Principal Designer services, Client Adviser services and Principal Designer Adviser services for construction projects across Scotland.
Quantifiable outcome
- Dundashill Phase 3 - largest Passivhaus development in Scotland
- +2 more outcomes
Companies that use G3 Engineering
Customer profileNamed customers10 records
Segments4 records
Ideal customer profiles4 records
G3 Engineering technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
G3 Engineering partnerships and signals
Strategic signalScale indicators4 records
Recent moves5 records
Expansion highlights4 records
G3 Engineering competitors and assessment
Company assessmentDirect peers
- Waterman Group: UK engineering consultancy with civil, structural, and geo-environmental capabilities serving public sector, residential, and regeneration clients; comparable in integrated service model, though at greater scale and geographic reach.
- Curtins: UK-wide civil, structural, and geo-environmental engineering consultancy with strong residential, regeneration, and brownfield remediation practices — directly comparable in service offering and technical specialism to G3.
- Clancy Consulting: Multi-disciplinary UK structural and civil engineering consultancy serving residential, education, healthcare, and public-sector clients — directly comparable in service scope and project types to G3.
- Fairhurst: UK-wide integrated engineering consultancy offering civil, structural, and geo-environmental services with a strong Scottish office network serving public sector, residential, and regeneration clients comparable to G3.
Broad incumbents
- Arup: Global engineering and design firm with a Glasgow presence delivering multi-disciplinary engineering for buildings, regeneration, and sustainability briefs — competes for higher-value Scottish housing and public-sector commissions.
- Buro Happold: International engineering consultancy with sustainability, structural, and geo-environmental expertise, including work on Passivhaus and low-energy buildings — comparable specialism though operating at national/international scale.
- WSP: Global professional services firm with extensive Scottish operations delivering civil, structural, geo-environmental, and CDM services — competes for the same housing-association and public-sector briefs as G3 but at significantly larger scale.
- Mott MacDonald: Global engineering consultancy with strong UK housing, regeneration, and environmental practices — overlaps with G3 across the full civil/structural/geo-environmental/CDM service stack on affordable housing and public-sector projects.
Regional players
- Blyth & Blyth: Glasgow-headquartered civil and structural engineering consultancy with a long Scottish heritage, directly comparable to G3 in market focus (housing, public sector, regeneration) and service mix.
- Will Rudd: Edinburgh-based civil and structural engineering consultancy serving Scottish housing associations, developers, and public sector clients on residential and regeneration projects — overlapping directly with G3's client base and geographies.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
G3 Engineering social profiles
Digital presenceG3 Engineering financial estimates
Financial estimateRevenue estimate
Valuation estimate
G3 Engineering leadership team
Management profileNumber of profiles
Profiles9 records
G3 Engineering funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
G3 Engineering 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 G3 Engineering
What does G3 Engineering do?
G3 Engineering is a civil, structural and geo-environmental engineering consultancy that delivers integrated design and advisory services from feasibility through detailed design to construction and beyond. Its core offering combines civil and structural engineering (roads, drainage, foundations, structures, utilities, flooding) with geo-environmental services (desk studies, site investigation, risk assessment, remediation strategies and validation) and Principal Designer/CDM services delivered under an ISO9001 quality management system. The firm primarily serves housing associations, local authorities, NHS trusts, charities and private developers undertaking residential, commercial, refurbishment and public-sector construction projects across Scotland.
Is G3 Engineering a public or private company?
G3 Engineering is a private company. It is classified as management employee owned and is currently operating.
When was G3 Engineering founded?
G3 Engineering was founded in 1978. It employs 11 to 50 people.
Where is G3 Engineering based?
G3 Engineering is headquartered in Glasgow, United Kingdom, in the Europe region.
How does G3 Engineering make money?
One revenue line is on record: professional Engineering Services.
Who are G3 Engineering's main competitors?
Direct peers on record are Waterman Group, Curtins, Clancy Consulting and Fairhurst. Broad incumbents are Arup, Buro Happold, WSP and Mott MacDonald. Regional players are Blyth & Blyth and Will Rudd.
Does G3 Engineering have an API?
No public API is recorded for G3 Engineering.
What industry is G3 Engineering in?
G3 Engineering's product category is Civil, Structural and Geo-Environmental Engineering Consultancy. Its primary akta.pro industry code is BPAHAIAA, Civil & Structural Engineering Consulting, with a secondary code of BPAHAIAN, Construction Engineering & Constructability Consulting. Its NAICS code is 541330 and its SIC code is 8711.