What S400 CONTROLS LTD does

S400 Controls Ltd is a UK-based private limited company founded in 2011 and headquartered in Fowey, United Kingdom, operating as a specialist engineering and software services firm for bespoke building management systems (BMS). The company designs and integrates control systems using Trend and Automated Logic (ALC) platforms, delivering four core capability areas: network and system design, software strategy design, graphics development, and high-level integration, including resilient network redundancy and complex control strategies for critical environments. Its work spans graphics updates on existing systems through to full system design and multi-system integration, and it has been deployed across landmark buildings in the UK and overseas, covering office buildings, data centres, airport terminals, hotels and resorts, laboratories, hospitals, schools, colleges, academies, and concert venues.

The business is structured as a project-based professional services firm with bespoke, individually quoted engagements rather than standardized pricing tiers, often structured as multi-year contracts. Go-to-market is sales-led and direct: the company relies on project enquiries received through its website (s400controls.com) and a single enquiries email, with no intermediaries, resellers, or active digital marketing campaigns. Founder Graham Warder is identified as the copyright holder on company material, indicating a founder-owned structure with no venture capital, private equity, or institutional shareholders, and no identified parent entity. The company's scale signals — a single named founder, a basic IONOS-templated website, no disclosed management team, no headcount figures, no certifications, awards, or patents — point to a small specialist consultancy rather than a scaled integrator.

S400 Controls differentiates primarily on depth of vendor-platform expertise (Trend and ALC) and on bespoke problem-solving across diverse building types, rather than on proprietary technology. There is no evidence of software productisation, recurring managed-service revenue, AI/ML capabilities, or geographic expansion beyond project-by-project overseas delivery.

Name

S400 CONTROLS LTD

Legal name

S400 Controls Ltd

Website

https://s400controls.com

Company type

Private

Founded year

2011

Operating status

Operating

Short description

S400 Controls Ltd is a UK-based, founder-owned engineering services firm that designs and integrates bespoke building management systems using Trend and Automated Logic control platforms, serving commercial, data centre, transportation, hospitality, healthcare, education, and entertainment buildings in the UK and overseas.

Ownership category

akta.pro rank

Product category

Building Management Systems (BMS) Engineering Services

NAICS

Computer Systems Design and Related Services (54151), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Auto Controls For Regulating Residential & Comml Environments (3822), Industrial Instruments For Measurement, Display, And Control (3823), Services-Facilities Support Management Services (8744)

akta.pro primary industry

Building Automation Systems (BAS/BMS) Integration & Controls (BPABAGAA)

akta.pro secondary industries

Building Thermal Controls & Building Management Systems (HVAC BMS) (IMAHAKAK), Building Management System (BMS)/Controls Maintenance & Commissioning (BPABACAE), Control System Integration & Engineering Services (Design, Commissioning, Retrofits) (IMAGABAK)

Keywords

• Building management systems
• BMS integration services
• Building automation design
• Control systems engineering
• Trend ALC controls

Headquarters

HQ city

Fowey

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D

Revenue model

1. BMS Professional Services: The company generates revenue through providing specialized building management system services including design, installation, graphics development, and integration services for BMS projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

S400 Controls Ltd provides bespoke engineering and software services for Building Management Systems (BMS) and control integrations, working primarily with Trend and Automated Logic (ALC) control platforms. Services include network and system design, software strategy design, graphics development, and high-level integration across diverse building types such as office buildings, data centres, airports, hotels, hospitals, educational institutions, and concert venues throughout the UK and overseas.

Product overview

S400 Controls Ltd offers Building Management Systems (BMS) as its core product and service offering. The company provides bespoke BMS solutions, ranging from specific project aspects such as updating graphics pages to comprehensive implementations including network redundancy, complex strategy design, and high-level integration. Working with Trend and Automated Logic (ALC) control systems, the company serves diverse sectors including office buildings, data centres, airport terminals, hotels, hospitals, schools, colleges, academies, and concert venues. Services encompass network and system design, software strategy design, graphics, and integration.

Differentiator

Problem solved

Functional benefit

Products and services

• Building Management Systems (BMS) Services Bespoke Building Management Systems consulting and engineering services including network and system design, software strategy design, graphics development, high-level integration, network redundancy, and complex strategy design, working with Trend and Automated Logic (ALC) control platforms for office buildings, data centres, airport terminals, hotels and resorts, labs, hospitals, schools, colleges, academies, and concert venues.

Segments7 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators1 record

Recent moves3 records

Expansion highlights2 records

Direct peers

• Innotech Control Systems: BMS manufacturer and integration specialist with a strong presence in commercial building automation across Europe — directly comparable to S400 Controls as a platform-and-integration specialist serving similar mid-market building projects.
• Distech Controls: Manufacturer and solutions provider of BMS controllers, software, and integration services for smart buildings, now part of Acuity Brands — directly comparable as a vendor/integrator operating in the same BMS platform and integration space as S400 Controls.
• Loytec Electronics: Austrian BMS manufacturer focused on building automation, LonWorks/BACnet integration, and network infrastructure — directly comparable to S400 Controls as a European BMS platform specialist with deep integration expertise.
• Cylon Controls: Irish-headquartered BMS controls specialist offering field controllers, software, and integration services for commercial buildings — directly comparable to S400 Controls as a similarly sized European BMS specialist focused on bespoke integration.
• Priva: Dutch company offering building automation and climate-control systems for commercial and horticulture markets, with deep integration expertise — directly comparable to S400 Controls in the bespoke European BMS integration niche.

Broad incumbents

• Schneider Electric (EcoStruxure Building): Global incumbent offering BMS, energy management, and integrated building solutions at enterprise scale — broadly comparable as the dominant competitor in the same end markets (commercial real estate, data centres, healthcare) that S400 Controls serves.
• Siemens Smart Infrastructure: Global incumbent offering Desigo BMS and integrated building solutions across commercial, healthcare, and infrastructure segments — broadly comparable as a major competitor in the same large-building BMS integration space S400 Controls targets.
• Honeywell Building Technologies: Global incumbent providing BMS, security, and energy management under brands including Trend — broadly comparable as a large incumbent that captures much of the same BMS opportunity S400 addresses, particularly post the Trend acquisition.

Emerging players

• Trend Control Systems (Honeywell): UK-origin BMS platform vendor and integrator services, now part of Honeywell — comparable because it is the primary platform on which S400 Controls builds its services and represents the same product/integration category.
• Automated Logic (Carrier): US-headquartered BMS platform vendor owned by Carrier, with UK service-partner channel — comparable because S400 Controls' second core platform expertise is built on ALC, putting them in the same integration ecosystem.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key highlights6 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 S400 CONTROLS LTD