What SES Engineering Services does

SES Engineering Services is a UK-based mechanical, electrical, and plumbing (MEP) building services contractor with over six decades of engineering heritage. Operating as a wholly-owned subsidiary of the Wates Group, the company is structured around three divisions: SES Engineering (integrated MEP design and installation), SES Manufacturing (offsite prefabrication from a 6,000 sq. ft. core facility in Coventry with a growing network of agile manufacturing sites), and SES Technology (specialised data centre and complex facility delivery). The company serves Tier One contractors and direct end-user clients across commercial, residential, energy, healthcare, justice, science and research, and industrial sectors, with named customers including Mace, Bowmer + Kirkland, GSK, Helical, British Land, MEPC, SeAH Wind, the Ministry of Justice and the NHS.

The company's technology stack centres on digital engineering, Building Information Modelling (BIM), digital twins, IoT sensors and AI-enabled smart building platforms, integrated with offsite manufacturing of modular MEP assemblies, packaged plantrooms, prefabricated risers and bespoke modules. It partners with technology providers including Microsoft Azure, Autodesk, Buildots, Morta, Dalux, Hexagon and Leica Geosystems to deliver real-time project tracking, predictive maintenance, anomaly detection and energy optimisation. Reported quantifiable outcomes include reductions of 20,000+ on-site labour hours at the JJ Mack Building, 60,000+ hours saved at the Lostock Sustainable Energy Plant, 29,000+ hours saved at Gasholders London, £500k project cost savings at Gasholders London, and the first UK building to achieve NABERS 5-star in-use rating at 11 & 12 Wellington Place, Leeds.

SES generates revenue through project-based B2B contracts awarded via competitive tendering and direct appointments, with no public pricing tiers disclosed. It operates a regional delivery model across three UK regions (North, Central, South) with international project delivery through SES Technology spanning the UK, Europe and North America. Reported FY2024 turnover was £463.7 million with 890 employees across 45 active sites, and approximately 80% of the pipeline derives from repeat client relationships. SES Manufacturing is ISO 9001:2015 certified and the company has won multiple industry accolades including ECA Contractor of the Year 2025 and The Queen's Award for Enterprise.

Name

SES Engineering Services

Legal name

SES (Engineering Services) Limited

Website

https://ses-ltd.co.uk

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

501–1,000 employees

Short description

SES Engineering Services is a UK-based MEP building services contractor and wholly-owned subsidiary of Wates Group, delivering integrated mechanical, electrical and plumbing design, offsite manufacturing and digital engineering across commercial, healthcare, energy, data centre and government sectors.

Ownership category

akta.pro rank

Product category

Building Services / MEP Engineering

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413)

SIC

Electrical Work (1731), Services-Engineering Services (8711)

akta.pro primary industry

Electrical Contracting & Wiring (IMAFALAA)

akta.pro secondary industries

Systems Engineering & Technical Program Management (BPAHAIAI), Energy Services (Retrofits/Commissioning/Testing & Balancing) (IMAIABAI), Electrical Permitting, Inspection Preparation & Compliance Services (HSAOADAL)

Keywords

• MEP engineering services
• Offsite manufacturing
• Building services contractor
• Data centre engineering
• Digital building solutions

Headquarters

HQ city

York

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. MEP Engineering Services: Design, fabrication, and installation of building services and infrastructure solutions across commercial, industrial, residential, government, energy, sport/leisure, education, science/research, and healthcare sectors. Revenue is generated through project-based contracts with Tier One contractors and end users.
2. Offsite Manufacturing: Prefabrication, modularisation, and digital construction services. Produces modular MEP assemblies, packaged plantrooms, bespoke curved modules, prefabricated risers, and utility cupboards for construction projects.
3. SES Technology - Data Centre Solutions: Specialised engineering services for complex data and technology facilities including hyperscale data centres, R&D centres, and quantum computing centres. Delivered across the UK, Europe, and North America.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

SES Engineering Services designs, fabricates, and installs mechanical, electrical, and plumbing (MEP) building services and infrastructure solutions for complex UK construction projects. The company operates through three divisions — SES Engineering (MEP design and digital delivery), SES Manufacturing (offsite prefabrication in Coventry and across the UK), and SES Technology (data centre and high-performance facility engineering) — serving Tier One contractors and end-user developers across commercial, residential, healthcare, government, energy, and data centre sectors.

Product overview

SES Engineering Services is a UK leading building services business operating through three core divisions: SES Engineering (MEP services and digital design), SES Manufacturing (offsite/prefabrication), and SES Technology (data centre and complex facilities). The company offers integrated service capabilities including MEP Services, Digital Engineering, Digital Buildings, Building Performance, and Offsite Manufacturing. These products work together as an integrated delivery model where SES Engineering provides core MEP installation, supported by SES Manufacturing's prefabricated components, SES Technology's specialist data centre expertise, and Digital Engineering/Digital Buildings enabling smart, connected building solutions.

Differentiator

Problem solved

Functional benefit

Brands

• Prism: SES Manufacturing's offsite manufacturing facility in Coventry producing prefabricated MEP modules and assemblies.

Products and services

• SES Engineering Core MEP contracting division delivering integrated mechanical, electrical, and plumbing systems for complex UK construction projects through digital design, data-driven delivery, and collaborative partnerships with Tier One contractors and end users.
• SES Manufacturing Offsite manufacturing and prefabrication division producing modular MEP assemblies, packaged plantrooms, bespoke curved modules, prefabricated risers, and utility cupboards from the Coventry Prism facility and a growing UK-wide network of digitally enabled manufacturing sites.
• SES Technology Specialist division delivering complex, high-performance data and technology facilities including hyperscale data centres, co-location facilities, R&D centres, and quantum computing centres, with 34+ projects delivered at £3.7bn total value.
• MEP Services Integrated mechanical, electrical, and plumbing engineering services providing specialist solutions for complex projects with a focus on energy efficiency, sustainability, and green building standards.
• Digital Engineering Advanced 3D modelling, concurrent engineering, and digital twin technologies for project visualisation, collaboration, and data-driven design, leveraging platforms including Autodesk, Hexagon, Leica, and Microsoft Azure.
• Digital Buildings Smart building technologies and IoT integration enabling data-rich environments where building systems communicate and collaborate, including tenant engagement apps, energy management, occupancy monitoring, and AI-enabled predictive maintenance.
• Building Performance Building performance engineering service ensuring functional, comfortable, and sustainable buildings through passive design strategies, energy efficiency optimisation, and an occupant wellbeing focus.
• Offsite Manufacturing Prefabricated and modular building solutions delivered from SES Manufacturing facilities, including modular MEP assemblies, packaged plantrooms, prefabricated risers, and custom modules for enhanced safety, quality, and programme efficiency.

Quantifiable outcome

• Reduced 20,000+ on-site labour hours through prefabrication at the JJ Mack Building
• +8 more outcomes

Named customers12 records

Segments9 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability6 records

Feature6 records

Partnerships

Six partnerships are on record, tiered core and flagship.

• North East Chamber of CommercecoreStrategic or Co-development Partner · 18 March 2026SES Technology joined the North East Chamber of Commerce as a Partner member, underlining its commitment to innovation, advanced manufacturing, and sustainable regional prosperity. The partnership supports collaboration with leading organisations to shape the North East's future, championing investment in advanced manufacturing and digital infrastructure.
• Supply Chain Sustainability SchoolcoreStrategic or Co-development PartnerSES is a proud partner of the Supply Chain Sustainability School. The partnership involves continuous learning, sharing, and leading best practices to raise sustainability standards across the industry. SES collaborates with this school for sustainable procurement training and supplier engagement.
• MEPCflagshipChannel Partner/ Reseller/ DistributorLong-standing client partnership with property developer MEPC. SES has delivered multiple flagship projects for MEPC including 11 & 12 Wellington Place, Leeds (250,000+ sq. ft.) and 4 Angel Square, Manchester (200,000 sq. ft.). Repeat business relationship with MEPC representing significant pipeline.
• MaceflagshipChannel Partner/ Reseller/ DistributorStrategic partnership with Mace as main contractor on flagship projects. SES delivered MEP services for 100 New Bridge Street, EDGE London Bridge, and the JJ Mack Building. Mace appointed SES on long-term basis across complex commercial projects.
• K2 Construction ManagementcoreChannel Partner/ Reseller/ DistributorSES was appointed by K2 Construction Management on behalf of SeAH Wind to deliver full mechanical and electrical works for the monopile factory at Teesworks - one of the largest facilities of its kind in the world.
• Bowmer + KirklandcoreChannel Partner/ Reseller/ DistributorRepeat partnership with Bowmer + Kirkland. SES successfully delivered 4 Angel Square following previous collaboration on 9 Circle Square. Strong relationship evidenced by 80% of SES's pipeline coming from repeat business.

Scale indicators12 records

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• Balfour Beatty Engineering Services: Balfour Beatty is a major UK Tier One contractor whose engineering services division delivers MEP, electrical, and mechanical infrastructure work. It overlaps with SES on MEP design and installation but operates at much broader scale across civils, utilities, and construction.
• EMCOR Group: EMCOR Group is a major US-based provider of mechanical and electrical construction, energy infrastructure, and facility services. It competes with SES in the broader mechanical/electrical construction services category, particularly on data centre and commercial projects.
• Skanska UK Building Services: Skanska is a global construction group with UK MEP and mechanical/electrical capabilities embedded in its commercial building business. It competes with SES for MEP scope on commercial and infrastructure projects as part of a broader portfolio offering.

Direct peers

• Bouygues Energies & Services: Bouygues Energies & Services is the UK arm of the French construction group's energy and technical services division, providing MEP design, installation, and FM services. It competes with SES across commercial, public sector, and infrastructure projects in the UK.
• Michael J Lonsdale: Michael J Lonsdale is a UK electrical and mechanical contractor competing for MEP packages on commercial and infrastructure projects. Mark Heath, now SES's Pre-Construction Director, previously held a senior role there, evidencing direct competitive overlap.
• Imtech UK (EDF): Imtech UK was a major UK MEP contractor before being absorbed into the EDF group via Imtech's European parent. It competes head-to-head with SES on complex commercial and data centre MEP packages, with comparable digital engineering and offsite capabilities.
• NG Bailey: NG Bailey is the UK's largest independent mechanical, electrical, and plumbing (MEP) contractor. It is the closest direct peer to SES, competing for Tier One subcontracted MEP packages across commercial, data centre, healthcare, and infrastructure projects in the UK.
• Phoenix ME: Phoenix ME is a UK-based MEP contractor providing mechanical and electrical design and installation services. Pre-Construction Director Mark Heath joined SES from Phoenix ME, indicating direct competitive overlap in the UK MEP subcontractor market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/engineering_ses
• LinkedInlinkedin.com/company/sesengineeringservices

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles20 records

Subsidiaries3 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 SES Engineering Services