HI Group

What HI Group does

HI Group (legal entity Hillside Infinitas Ltd) is a UK-based decarbonisation and net zero solutions provider formed in 2024 through the merger of Hillside Environmental Services and Infinitas Design, both founded in 2014. The company delivers end-to-end services for organisations with large multi-site estates, covering carbon footprint assessment, net zero strategy development, technical design, funding and grant acquisition (notably Salix PSDS), implementation project management, and post-installation energy performance management through its proprietary MRV (Monitoring, Reporting and Verification) software and the HIPA data analytics platform.

The firm's core technology stack combines its proprietary MRV/HIPA software with third-party IES energy modelling software and technology-agnostic deployment across heat pumps (air, ground, and water source), solar PV, battery storage, heat networks (including geothermal and wastewater heat recovery), and EV charging infrastructure. Services are delivered by a team of around 15–19 professionals including chartered mechanical engineers, quantity surveyors, energy engineers, and project managers, with senior leadership drawn from FTSE 100 backgrounds.

HI Group targets the Further Education, Healthcare, Heritage, Public Sector, Corporate Multisite, and Leisure & Hospitality sectors across the UK, with a documented project footprint spanning the Midlands, South East England, Scotland, Cornwall, and Cambridgeshire. Revenue is generated primarily through project-based professional services engagements with custom quotes, supplemented by recurring monitoring and analytics subscriptions via the MRV platform. Notable clients include MidKent College, Gloucestershire College, NHS Property Services, Borders College, the Eden Project, the National Trust, and Swaffham Prior Community Land Trust. The company is privately held with no disclosed external investment.

Name

HI Group

Legal name

Hillside Infinitas Ltd

Website

https://higroupltd.co.uk

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

11–50 employees

Short description

HI Group is a UK-based decarbonisation consultancy that delivers end-to-end net zero services — strategy, design, funding, implementation, and ongoing MRV software monitoring — to large multi-site estates in Further Education, Healthcare, Heritage, Public Sector, and Leisure & Hospitality sectors.

Ownership category

akta.pro rank

Product category

Decarbonisation & Net Zero Consulting

NAICS

Services to Buildings and Dwellings (5617)

akta.pro primary industry

Decarbonization Strategy & Marginal Abatement Cost Curve (MACC) Advisory (EUABAKAC)

akta.pro secondary industries

Net-Zero Target Setting & SBTi/Net-Zero Standard Support (EUABAKAA), Net-Zero Assurance & Readiness Assessments (limited assurance prep, audit support) (EUABAKAJ), Benchmarking, Ratings & Stakeholder Reporting Portals (Scorecards, Dashboards) (EUABAEAJ)

Keywords

• Decarbonisation services
• Net zero consulting
• Heat pump engineering
• Energy performance management
• Renewable energy solutions

Headquarters

HQ city

Nottingham

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services - End-to-End Decarbonisation: Full-service decarbonisation consulting encompassing carbon assessment, strategy development, design, funding support, project management, and ongoing performance optimisation. Services are delivered as a comprehensive package with a single point of contact.
2. Technical Design and Engineering: Engineering services including heat loss calculations, system sizing, technical specifications, CAD drawings, 3D modelling, and detailed project documentation for renewable heating systems.
3. MRV Software and Monitoring Services: Ongoing monitoring, analytics, and reporting services using proprietary software to track energy performance and optimise renewable energy systems post-installation.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

HI Group provides end-to-end decarbonisation and net zero services for large multi-site estates across the Further Education, Healthcare, Heritage, Public Sector, and Corporate sectors. Their offerings span carbon assessment and net zero strategy, technical design of heat pumps and low-carbon heating systems, funding and grant support (including Salix PSDS), project management and implementation, and ongoing energy performance monitoring through proprietary MRV software and the HIPA analytics platform.

Product overview

HI Group operates as a net zero solutions provider offering a unified portfolio of decarbonisation services. Its core offering spans strategy and planning, project implementation and delivery, and ongoing energy performance management through its proprietary MRV software. The HIPA platform serves as the underlying data analytics layer for energy monitoring and optimisation. Services are delivered across multiple technology domains including heat pumps, solar PV, battery storage, heat networks, and EV charging infrastructure. The company targets large estates across Further Education, Healthcare, Heritage, Public Sector, and Corporate Multisite sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Decarbonisation Strategy and Planning Services End-to-end decarbonisation services covering carbon footprint assessment (Scope 1, 2, 3 using GHG Protocol), bespoke low-carbon solution design, financial modelling, net zero roadmaps, and accredited environmental auditing. Designed for organisations with large multi-site estates including colleges, hospitals, heritage buildings, and public sector bodies.
• Energy Performance Management Service Ongoing energy performance management service combining system monitoring, optimisation and long-term support. Backed by HI Group's proprietary MRV software, it provides automated ESG-compliant reporting, granular analytics, proactive alerts, and HNTAS preparedness for installed renewable systems.
• MRV Software (Monitoring, Reporting and Verification) Proprietary software platform delivering real-time monitoring of energy consumption, renewable output, and system efficiency. Provides detailed analytics to identify inefficiencies, proactive alerts for issue resolution, automated ESG-compliant reporting, and Heat Network Technical Assurance Scheme (HNTAS) preparedness.
• HIPA Platform Custom data analytics platform used to monitor and analyse energy consumption and generation data, helping to identify anomalies, performance issues, and opportunities for optimisation across client estates.
• Implementation and Project Delivery Services Project management and delivery service acting as a single point of contact for decarbonisation projects, from sourcing technology and coordinating installation partners to managing stakeholder alignment, delivery risks, and installation timelines.
• Funding and Financial Modelling Services Financial modelling using whole-life economics (TOTEX) to build business cases, secure green finance and grants such as Salix PSDS, and demonstrate sustainability impact and financial viability for decarbonisation projects.

Quantifiable outcome

• Gloucestershire College achieved 63% carbon reduction in Year 1 with projected 95% by 2030
• +5 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Twelve partnerships are on record, tiered core, minor and supporting.

• GridBeyondcoreTechnology or IntegrationStrategic partnership for energy optimisation combining HI Group's decarbonisation expertise with GridBeyond's energy flexibility technology. Jointly produced The Public Sector Decarbonisation Roadmap. GridBeyond provides demand-side response and energy optimisation capabilities to complement HI Group's heat pumps and renewable systems.
• Climate AmbassadorsminorStrategic or Co-development PartnerPartnership for community engagement on the Shenstone community heat network project. Climate Ambassadors provided support for educational activities at Greysbrooke Primary School as part of the decarbonisation initiative.
• Faithful & GouldsupportingImplementation/ SI/ Consulting PartnerWorked alongside Faithful & Gould on the NHS Property Services carbon reduction pilot project to identify energy savings and carbon reduction opportunities across 4,000 NHS primary care facilities.
• OnSitecoreImplementation/ SI/ Consulting PartnerHI Group was pleased to form part of OnSite's team to design and build the heat network for the Eden Project's geothermal energy project. Provided detailed surveys, pipe route drawings, 3D modelling, and as-built documentation.
• HEX EnergysupportingImplementation/ SI/ Consulting PartnerInstallation partner for Gloucestershire College electrification project, installing ground source heat pumps to replace gas heating.
• Evo EnergysupportingImplementation/ SI/ Consulting PartnerSolar PV installation partner for Gloucestershire College project, installing rooftop solar PV systems to generate green electricity on-site.
• MSP Technologies LtdsupportingImplementation/ SI/ Consulting PartnerBattery storage installation partner for Gloucestershire College project, providing energy storage and smart energy management systems.
• Bouygues Energies & ServicescoreImplementation/ SI/ Consulting PartnerMain contractor for Swaffham Prior Heat Network project. HI Group provided full technical support while Bouygues delivered installation between 2020-2022.
• Lichfield District CouncilsupportingOthersCommissioned HI Group to investigate low-carbon heat network feasibility for Shenstone village, which sits above a sandstone aquifer.
• Shenstone Parish CouncilsupportingOthersCollaborated with Lichfield District Council on the Shenstone community heat network project commissioning.
• Cambridgeshire County CouncilsupportingOthersPartnered with Swaffham Prior Community Land Trust on the pioneering rural heat network project, with council-owned solar farm connected to the network.
• Heriot-Watt UniversitysupportingStrategic or Co-development PartnerShared use of High Mill historic Victorian textile mill building with Borders College, where the wastewater heat recovery system was installed.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Ricardo Energy & Environment: Specialist consultancy providing energy, carbon, and environmental advisory services to public and private sector clients. Comparable to HI Group on decarbonisation strategy, GHG inventory work, and sector-specific net-zero pathway advisory across UK and international markets.
• Carbon Trust: UK-based advisory organisation helping public and private sector organisations measure, manage, and reduce carbon emissions. Direct comparable as a specialist decarbonisation strategy and advisory firm with overlapping FE, healthcare, and public-sector client base.
• SLR Consulting: Global environmental and energy consultancy offering carbon advisory, sustainability strategy, and ESG services. Overlaps with HI Group in net-zero strategy, sector decarbonisation roadmaps, and multi-site estate advisory.
• Inspired Energy plc: UK energy and sustainability consultancy delivering energy management, carbon reduction, and compliance services to multi-site organisations. Highly comparable to HI Group on target customers (multi-site estates), service mix (strategy + implementation support), and recurring energy performance/management layer.

Broad incumbents

• WSP UK: Major global engineering consultancy with a strong UK sustainability and decarbonisation practice serving public sector, healthcare, and education estates. Competes with HI Group for large multi-site decarbonisation mandates but as part of a much broader engineering portfolio.
• AECOM UK: Global infrastructure consultancy with established UK net-zero advisory, energy services, and ESG practices serving public-sector and institutional clients. A broader incumbent competing for the same decarbonisation programmes HI Group targets.
• Mitie: UK facilities management and energy services provider with a growing decarbonisation and net-zero advisory practice serving multi-site estates. Comparable on multi-site decarbonisation delivery, energy performance management, and recurring services revenue.
• ENGIE UK: Large energy and facilities services company offering decarbonisation, heat networks, and energy performance services across UK estates. Comparable on heat network and estate decarbonisation delivery but at much larger scale and broader scope than HI Group.
• Centrica Business Solutions: Energy services arm of Centrica providing decarbonisation strategy, on-site generation, and energy optimisation to UK enterprises and public sector. Broad incumbent competing for heat pump, solar, and energy performance projects similar to HI Group's offerings.

Emerging players

• GridBeyond: Energy technology company providing demand-side response and optimisation, and co-author with HI Group of The Public Sector Decarbonisation Roadmap. Partial overlap on decarbonisation advisory and energy flexibility, complementary rather than fully competitive.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/higroupltd

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 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 HI Group