ENVIRONMENTAL SOLUTIONS INTERNATIONAL LIMITED

What ENVIRONMENTAL SOLUTIONS INTERNATIONAL LIMITED does

Environmental Solutions International Limited (ESi) is a UK-based environmental consultancy and software provider, founded in 2009 and headquartered in Reading. The company serves golf and leisure facilities, commercial property, and estates with environmental management, compliance advisory, and water resilience solutions. ESi operates through two integrated revenue streams: bespoke environmental consultancy services (environmental reviews, project implementation, resource efficiency advice, chemical and fuel storage compliance, waste management, and ISO 14005 Environmental Management System development) and a proprietary cloud-based Environmental Management System (EMS) platform, now in its 8th Edition, which tracks year-to-date consumption of energy, water, waste, pesticides, fertiliser, and fuel, surfaces legal compliance summaries mapped to Environment Agency guidance, manages water abstraction licenses, and calculates carbon emissions and sequestration balances to support net-zero and carbon offset programmes.

Under the leadership of Managing Director Tony Hanson (CIWFM, PIEMA, AMICE, GEO Sustainability Associate and Certification Verifier, Planet Mark Associate) — who has 35+ years of experience in leisure facility management and commercial property — the firm is supplemented by a panel of consultants and operates with a sales-led, direct-engagement model (multi-year bespoke contracts; pricing not publicly disclosed). ESi has built a defensible niche position through long-standing partnerships with the GEO Foundation for Sustainable Golf (9 years, 40+ verification surveys), certification bodies (Planet Mark, ISO 14005), industry associations (CMAE, GMA, RCA, UK Golf Federation representing ~1,100 golf facilities), water companies (Anglian Water, South East Water), and academic and regulatory partners (Imperial College London, Cranfield University, Environment Agency, Natural England, The Rivers Trust, Wildlife Trusts, Waterwise). Following the April 2015 merger with Hanson Peters Associates, the company has been founder-controlled and bootstrapped, with no external funding rounds evidenced. Its products include the ESi EMS, Planet Mark and GEO certification delivery, the Leisure Operator Water Charter initiative, and the Golf Sustainability Project with Imperial College London (which estimated 670 Sq Km of naturalised habitat on English golf courses).

Name

ENVIRONMENTAL SOLUTIONS INTERNATIONAL LIMITED

Legal name

Environmental Solutions International Ltd.

Website

https://esinternational.co.uk

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

ESi (Environmental Solutions International Limited) is a UK-based environmental consultancy and SaaS provider offering an Environmental Management System platform, compliance advisory, and water resilience solutions for golf and leisure facilities, commercial property, and estates.

Ownership category

akta.pro rank

Product category

Environmental Management Consulting

NAICS

Environmental Consulting Services (541620), Environmental Consulting Services (54162)

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Energy & Sustainability Management (Energy Audits/Optimization/Carbon & ESG Programs) (IMAIAAAM)

akta.pro secondary industries

ISO 14001 Gap Assessment & Readiness (EUAHAIAA), EMS Integration (ISO 9001/45001/50001) & Integrated Management Systems (EUAHAIAC), Environmental & Social Management Plans (ESMP) / Mitigation Monitoring (EUAHAAAG)

Keywords

• Environmental management consulting
• Environmental compliance services
• Water resilience solutions
• Sustainability certification
• Carbon emissions tracking

Headquarters

HQ city

Reading

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Consultancy Services: Bespoke consultancy services providing environmental management advice to commercial property, leisure and estates sectors. Services include environmental reviews, project implementation, resource efficiency advice, chemical and fuel storage compliance, waste management, and broader environmental elements of developments.
2. Environmental Management System (EMS) Subscription: SaaS-based environmental management system providing daily management tools for whole site management including compliance tracking, consumption monitoring, and carbon balance calculations.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Environmental Solutions International (ESi) provides environmental management consultancy services and a proprietary cloud-based Environmental Management System (EMS) for commercial property, leisure (golf clubs, racecourses) and estates clients in the UK. Services cover Net Zero compliance, hazardous materials handling, ISO 14005 environmental management systems, resource and water consumption analysis, carbon sequestration identification, and water resilience planning. The EMS platform delivers year-to-date tracking of energy, water, waste, pesticides, fertiliser and fuel use, plus legal compliance summaries and CO2 sequestration balancing.

Product overview

Environmental Solutions International (ESi) offers a unified Environmental Management System (EMS) as its core product, supplemented by consultancy services, third-party certification support (Planet Mark and GEO Foundation), and sector-specific initiatives like the Leisure Operator Water Charter and Golf Sustainability Project. The EMS is a single integrated platform for managing energy, water, waste, pesticides, fertiliser, fuel and carbon across leisure and estate properties, while the consultancy and certification services provide advisory support and external verification. The company was established in 2009 and works with Imperial College London on research projects.

Differentiator

Problem solved

Functional benefit

Products and services

• ESi Environmental Management System (EMS) Cloud-based Environmental Management System for commercial property, leisure and estates sectors that tracks year-to-date energy, water, waste, pesticides, fertiliser and fuel consumption across an entire site, provides legal compliance summaries mapped to Environment Agency Pollution Prevention guidance, manages water abstraction licence balances, and balances onsite emissions against CO2 sequestration to support Net Zero achievement. Delivered as a SaaS subscription for site managers, health and safety leads and course administrators.
• ESi Bespoke Environmental Consultancy Services Environmental consultancy providing advice on UK Net Zero compliance, hazardous materials handling (fuels, oils, pesticides, fertilisers), waste handling and recording, ISO 14005 Environmental Management System development (incorporating SECR, GHG Protocol and HM Government's 25 Year Environment Plan), resource consumption reduction, carbon sequestration identification, climate adaptation planning, and water resilience project delivery. Served commercial property, golf/leisure facilities and estates clients in the UK and internationally (Caribbean, Africa, Middle East, the Falklands and Europe).
• Planet Mark Sustainability Certification Service Sustainability certification service for organisations seeking credible recognition of continuous improvement in environmental performance, supporting ESG strategy and alignment with the UN Sustainable Development Goals. Delivered to UK commercial property, leisure and estates clients by Planet Mark Associate Tony Hanson.
• GEO Foundation Sustainability Certification and Verification Service Sustainability certification and verification service for golf facilities, providing credible recognition of environmental action in the golf sector. Delivered as a GEO Sustainability Associate and Certification Verifier service, with ESi having conducted over 40 GEO Verification surveys over 9 years of partnership.
• Leisure Operator Water Charter Programme Water-sector-funded initiative providing template water resilience plans, seminars and workshops that help leisure facility operators reduce irrigation use and protect potable water supplies. Endorsed by Waterwise (the water efficiency charity) and adopted by the Club Managers Association of Europe, Grounds Management Association, Racecourse Association and UK Golf Federation.

Quantifiable outcome

• Estimated 670 Sq Km of naturalised habitat on golf courses - approximately 50% of golf course area
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

16 partnerships are on record, tiered core and minor.

• GEO Foundation for Sustainable GolfcoreStrategic or Co-development PartnerInternational not-for-profit organisation dedicated to sustainable golf. ESi has worked with GEO for 9 years, conducting over 40 GEO Verification surveys. Tony Hanson is a Golf Environment Organisation Sustainability Associate and Certification Verifier.
• Planet MarkcoreStrategic or Co-development PartnerSustainability certification for organisations. ESi delivers Planet Mark certification services. Tony Hanson holds Planet Mark Associate certification.
• Club Managers Association of Europe (CMAE)coreGTM or Marketing PartnerAdopted the Leisure Association Water Charter. Represented by Howard Craft CCM who actively promotes water resilience among members.
• Grounds Management Association (GMA)coreGTM or Marketing PartnerCEO Geoff Webb supports collaboration on water management education and resources. Adopted Leisure Association Water Charter for members.
• Racecourse Association (RCA)coreGTM or Marketing PartnerSigned leisure association water charter on behalf of racecourse members requiring significant water for racing surfaces.
• UK Golf FederationcoreGTM or Marketing PartnerCEO Douglas Poole leads 1,100 member golf facilities in water usage management change. Key partner for driving adoption of water resilience practices.
• Anglian WatercoreStrategic or Co-development PartnerDemand Forecast Manager Phillip Stephens supports water efficiency initiatives. The driest and fastest growing region in UK with significant water stress.
• South East WatercoreStrategic or Co-development PartnerHead of Water Resources Lee Dance supports leisure sector water charter and resilience initiatives for growing population and changing climate.
• WaterwisecoreStrategic or Co-development PartnerWater efficiency charity providing endorsement for the Leisure Association Water Charter. Projects and Research Manager Laura White supports collaboration between leisure and water sectors.
• The Environment Agency (EA)minorStrategic or Co-development PartnerIntegrated water resilience projects working with the EA on water resource management.
• Natural EnglandminorStrategic or Co-development PartnerPartner in integrated water resilience projects for environmental protection.
• The Rivers TrustminorStrategic or Co-development PartnerPartner in integrated water resilience projects for river water quality improvement.
• Cranfield UniversityminorStrategic or Co-development PartnerAcademic partner in integrated water resilience projects and research.
• Wildlife TrustsminorStrategic or Co-development PartnerEnvironmental conservation partner in integrated water resilience projects.
• Imperial College LondoncoreStrategic or Co-development PartnerCollaborated on Golf Sustainability Project to identify land area covered by golf facilities in England. Project estimated 670 Sq Km of naturalised habitat on golf courses.
• Hanson Peters AssociatescoreStrategic or Co-development PartnerCivil engineering consultancy that merged with ESi in April 2015. Specialist partners providing knowledge base for water treatment, wastewater, land drainage, and environmental projects in UK and overseas.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• STRI (Sports Turf Research Institute): UK-based sports turf consultancy serving golf, sports, and amenity turf sectors with agronomy and environmental advice. Comparable to ESi due to its shared golf/leisure vertical focus and combined consultancy/research model.
• Green Element: UK-based environmental and sustainability management consultancy delivering ISO 14001 EMS implementation and Net Zero advice. Comparable to ESi as a small specialist consultancy offering similar ISO 14001/14005-style environmental management system support to UK SMEs and estates.
• Greensight: UK-based sustainability and environmental consultancy focused on the golf and leisure sectors. Directly comparable to ESi as a specialist adviser for golf clubs on environmental compliance, sustainability certification, and resource management.
• Avieco: UK-based sustainability consultancy offering carbon, environmental management, and Net Zero advisory. Comparable to ESi as a similarly sized UK specialist competing for the same Net Zero, carbon, and EMS mandates across commercial and leisure clients.

Emerging players

• Sweep: Carbon and ESG management SaaS platform with UK presence enabling organisations to track emissions and sustainability data. Comparable to ESi's EMS as a competing technology-led platform for environmental data tracking, though Sweep is a software-first play rather than consultancy-led.

Broad incumbents

• SLR Consulting: Global environmental and sustainability consultancy offering advisory, compliance, and environmental management services. Comparable to ESi as a UK-based provider that competes for environmental consulting and EMS-related mandates, though SLR operates at significantly greater scale and breadth.
• RPS Group (Tetra Tech): UK-headquartered environmental, water, and sustainability consultancy acquired by Tetra Tech. Comparable to ESi through its water resource and environmental management services, though operating at global scale and serving a far wider client portfolio.
• Anthesis Group: Global sustainability consultancy with strong UK presence offering Net Zero, ESG, and environmental management services. Comparable to ESi as a larger incumbent that competes for similar compliance and sustainability mandates, though Anthesis serves a much broader portfolio of clients.
• Carbon Trust: UK-based sustainability advisory firm helping organisations measure and reduce carbon emissions and environmental impact. Comparable to ESi through overlapping Net Zero, carbon accounting, and EMS-style advisory, though operating at broader scale and brand recognition.
• WSP Environment: Global environmental and engineering consultancy with substantial UK practice covering environmental impact, water resources, and compliance. Comparable to ESi's water resilience and EMS offerings but at vastly greater scale and across many more verticals.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance1 record

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 ENVIRONMENTAL SOLUTIONS INTERNATIONAL LIMITED