What Optima does

Optima Building Environmental Solutions (Optima BES Ltd) is a privately-held UK mechanical and electrical (M&E) building services engineering consultancy headquartered in Abbots Langley, Hertfordshire. The firm was established in 1989 and operates with a 1–10 employee headcount under founder-CEO Kate Smith, providing mechanical engineering, electrical engineering, and integrated M&E consultancy services for high-end residential and bespoke commercial building projects across London and surrounding UK regions including Manchester, Kent, Surrey, Watford, Luton, Slough, Beaconsfield, Chesham, Dunstable, Hatfield, Maidenhead, Amersham, and Harrow. Optima's core offering covers electrical, mechanical, telecoms, and public health system design through to installation oversight, using latest modelling software and a proprietary six-component engineering methodology that addresses passive solutions, low-carbon technology comparison, and compliance with CO2, Part L, LEED, and EPC standards.

Optima's project portfolio includes named enterprise clients such as Liberty of London (hair salon refurbishment within the iconic department store), the Concert Artistes' Association (private members club refurbishment), and Kensington and Chelsea office projects, alongside long-term architectural partnerships with firms such as MMM Architects Ltd (10+ year collaboration on high-end prime private residential work). The company also holds registered assessor status for the Code for Sustainable Homes and positions itself around the UK government's Future Homes Standard and zero-carbon design requirements. Its value proposition centers on translating complex M&E engineering into user-friendly installations for sophisticated residential and heritage commercial environments.

The business operates a sales-led, referral-driven go-to-market model with quote-based project pricing, multi-year contract cadences, and free quotations. Customer acquisition relies on repeat business from architects, interior designers, and project managers, supplemented by location-specific SEO landing pages targeting consulting engineer keywords across 14+ UK cities. Optima does not list external investors, parent companies, or funding rounds, and operates as an independent founder-owned specialist consultancy with no disclosed revenue figures.

Name

Optima

Legal name

Optima BES Ltd

Website

https://optimabes.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

1–10 employees

Short description

Optima Building Environmental Solutions is a UK-based, founder-owned mechanical and electrical building services engineering consultancy specializing in high-end residential and bespoke commercial M&E design across London and surrounding UK regions.

Ownership category

akta.pro rank

Product category

Building Services Engineering / M&E Consultancy

NAICS

Environmental Consulting Services (541620)

SIC

Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

Smart Appliance & Energy Management Integration (HSAHADAG)

Keywords

• Building services engineering
• M&E consultancy
• Mechanical engineering services
• Electrical engineering services
• Residential building design

Headquarters

HQ city

Kings Langley

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Engineering Consultancy Services: Professional services revenue from providing mechanical and electrical engineering consultancy for building projects. Services are quoted on a per-project basis, with engagement spanning from initial design specification through to installation oversight and compliance testing.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Optima Building Environmental Solutions is an M&E engineering consultancy that designs and oversees mechanical, electrical, telecoms, and public health systems for residential and commercial buildings. The company delivers end-to-end building services engineering — from initial design specification and modelling through to installation oversight, testing, and government standards compliance — with a specialist focus on high-end substantial residential projects and bespoke commercial environments.

Product overview

Optima Building Environmental Solutions operates as an MEP (Mechanical and Electrical) consultancy offering a unified portfolio of building services engineering solutions. The core offering consists of M&E Consultancy Services, Mechanical Engineering Services, and Electrical Engineering Services. These services work together to provide end-to-end project management for building services — from design and specification through to installation, testing, and compliance verification. The company specializes in high-end residential projects and bespoke commercial environments, delivering integrated power, air, and water solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• M&E Consultancy Services Mechanical and electrical engineering consultancy providing building services design, installation, and project management for residential and commercial properties, delivered as an end-to-end service from design specification through to compliance testing.
• Mechanical Engineering Services Design and installation oversight of mechanical building systems including heating, air conditioning (HVAC), plumbing, escalators, elevators, plant, and machinery for residential and commercial buildings.
• Electrical Engineering Services Design and installation oversight of electrical building systems including power supply, distribution, wiring, lighting, security, communications, generators, and structured cabling.
• Code for Sustainable Homes Assessment Environmental impact assessment for buildings, with Optima's project managers and registered assessors measuring sustainability performance and advising clients and design teams on meeting Government Building Regulations and Code for Sustainable Homes criteria.
• Full Project Management Service Complete end-to-end project management covering identification of appropriate building systems, professional installation oversight, testing, and verification of compliance with government standards.

Quantifiable outcome

• High levels of repeat business and referrals from clients, architects, and interior designers indicating sustained customer satisfaction

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Max Fordham: UK building services engineering consultancy with strong reputation in sustainable design, low-carbon buildings, and high-quality residential and cultural projects. Strong overlap with Optima in environmental focus and high-end residential niche.
• Hilson Moran: UK-based building services engineering consultancy providing MEP design for commercial, residential, and hospitality projects. Comparable to Optima in project type, with particular strength in commercial and high-end residential sectors.
• Cundall: Multi-disciplinary engineering consultancy with strong UK presence providing mechanical, electrical, and public health (MEP) design services. Overlaps with Optima in building services engineering for residential and commercial sectors, with broader international footprint.
• Skelly & Couch: Boutique London-based building services engineering consultancy focused on high-end residential, cultural, and heritage projects. Very similar niche positioning to Optima, serving similar architect-led client base with comparable project scale.
• Hoare Lea: UK-based MEP engineering consultancy specializing in building services design for high-end residential, commercial, and heritage projects. Hoare Lea is the most direct competitor to Optima, serving similar architect-led client base with comparable integrated M&E services and project scale.
• Meinhardt UK: International engineering consultancy with UK operations providing M&E, sustainability, and building services engineering. Comparable to Optima in high-end residential and commercial project focus, though Meinhardt operates at larger scale.
• CBG Consultants: UK-based building services engineering consultancy providing M&E design across residential, commercial, and education sectors. Comparable to Optima in service offering and project scale, with similar focus on integrated building services design.

Broad incumbents

• Buro Happold: Global engineering consultancy with significant building services engineering practice. While much larger and more diversified than Optima, Buro Happold competes for similar high-end residential and commercial M&E briefs in the UK market.
• WSP UK Building Services: Major global engineering firm with substantial UK building services practice covering residential, commercial, and infrastructure projects. Competes with Optima for commercial M&E commissions but operates at significantly larger scale with broader service portfolio.
• Arup Building Engineering: Global engineering consultancy with prominent UK building services engineering practice. Overlaps with Optima in high-end residential and commercial M&E design, particularly in London prime residential market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Optima