What Carbonxgen does

Founded circa 1991 in Sandhurst, Berkshire, Carbonxgen is a UK sustainability and energy management consultancy serving commercial real estate portfolios, property managing agents, and energy-intensive businesses. The firm delivers a multi-disciplinary service stack spanning energy procurement, regulatory compliance (MEES, ESOS, SECR, Heat Networks, MHHS), carbon and footprint accounting, BICS eligibility assessments, MOP/DC/DA contract management, metering solutions, occupier recharging, invoice validation, and net zero carbon strategy. Revenue is generated through project-based professional service fees and retainers with bespoke pricing tied to portfolio complexity; go-to-market is consultative direct-sales with no published rate cards or self-service channels.

The technology backbone is Carbonxcelerate, a proprietary sustainability and energy data management platform used to track consumption, emissions, and reporting obligations across client estates. Distribution is single-country (UK); the firm holds ISO 9001, ISO 14001, ISO 45001, and SafeContractor accreditations and has been shortlisted for the Energy Awards 2026 Trusted Energy Partnership category. Named enterprise relationships include BNP Paribas Real Estate (a 20-year gas portfolio mandate), The Crown Estate (Meter Verification Surveys across 40+ buildings), Argyll (EPC compliance for premium London addresses), NFER, and Topland Group. Founder and Chairman Andrew Bowden passed away in April 2026; the company continues to operate as a private limited company under the existing team.

Name

Carbonxgen

Legal name

Carbonxgen Limited

Website

https://carbonxgen.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

UK-based sustainability and energy management consultancy delivering energy procurement, regulatory compliance, and net zero strategy services to commercial real estate portfolios and energy-intensive businesses via its Carbonxcelerate data platform and bespoke consulting engagements.

Ownership category

akta.pro rank

Product category

Energy Management Consulting

NAICS

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

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Scope 1–3 GHG Inventory Strategy, Data Governance & Controls (advisory) (EUABAKAD)

akta.pro secondary industries

Decarbonization Strategy & Marginal Abatement Cost Curve (MACC) Advisory (EUABAKAC), Net-Zero Assurance & Readiness Assessments (limited assurance prep, audit support) (EUABAKAJ), Emissions Factors, LCA & Product Carbon Footprint (PCF) Platforms (EUABAEAD)

Keywords

• Energy management consulting
• Sustainability advisory services
• Carbon accounting platform
• Energy procurement services
• Building compliance consulting

Headquarters

HQ city

Sandhurst

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, Infrastructure

Revenue model

1. Energy & Sustainability Consulting Services: Professional consulting services including energy procurement, compliance management, sustainability performance, data excellence, cost optimisation, and building optimisation management. Revenue is generated through professional service fees, retainer arrangements, and project-based consulting engagements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Carbonxgen is a UK-based energy and sustainability consultancy that helps commercial organisations reduce energy costs, achieve regulatory compliance (MEES, ESOS, SECR, Heat Networks, MHHS, BICS), and reach Net Zero targets. The company delivers this through a combination of expert advisory services, energy procurement, metering, building optimisation, and its proprietary Carbonxcelerate software platform for energy and sustainability data management.

Product overview

Carbonxgen is a sustainability and energy management consultancy offering a comprehensive portfolio of services rather than a unified software platform. The core offering includes Carbonxcelerate (an energy data management platform), supported by specialist services across data excellence, cost optimisation, compliance management, and technical solutions. Key service modules include energy procurement, invoice validation, occupier recharging, metering solutions, and regulatory compliance (MEES, ESOS, SECR, Heat Networks, MHHS). The company also provides BICS eligibility services and MOP/DC/DA contract management. These services are delivered through consulting engagements rather than self-service software, with Carbonxcelerate providing the technology backbone for data management and reporting.

Differentiator

Problem solved

Functional benefit

Brands

• Carbonxcelerate: A software platform for carbon accounting and sustainability data management.

Products and services

• Carbonxcelerate Proprietary energy and sustainability data management software platform providing analytics and Net Zero planning capabilities for commercial organisations managing energy and compliance across portfolios.
• Energy Metering Solutions Energy metering deployment and management services for commercial property portfolios and energy-intensive businesses to capture consumption data required for compliance and cost management.
• Energy Procurement Energy procurement advisory service helping commercial clients negotiate and secure competitive energy supply contracts to reduce energy costs and manage market exposure.
• Occupier Recharging Service to accurately calculate and re-charge energy costs from landlords to occupiers within multi-tenant commercial properties.
• Invoice Validation Service validating energy invoices against contractual rates and consumption data to identify errors and prevent overcharging.
• BICS Eligibility & Compliance Advisory and compliance service covering the Boiler Industrial and Commercial Scale (BICS) eligibility and compliance requirements for commercial heat networks.
• MOP, DC & DA Management Management of Meter Operator, Data Collector and Data Aggregator services for commercial energy metering portfolios.
• EPC Assessments Energy Performance Certificate assessment services for commercial buildings to support compliance and benchmarking.
• ESOS Phase 4 Compliance Advisory service supporting compliance with Phase 4 of the Energy Savings Opportunity Scheme (ESOS) for qualifying UK organisations.
• Heat Network Regulations Compliance Compliance advisory service for organisations operating or using heat networks to meet UK Heat Network regulations.
• MEES Compliance Advisory service supporting Minimum Energy Efficiency Standards (MEES) compliance for commercial property landlords and owners.
• MHHS Compliance Market-wide Half Hourly Settlement compliance advisory and operational support for organisations affected by MHHS programme obligations.
• SECR Compliance Streamlined Energy and Carbon Reporting compliance advisory service for organisations required to report under UK SECR regulations.
• Carbon Accounting Carbon accounting advisory and reporting service to measure, track and report organisational greenhouse gas emissions and progress toward Net Zero targets.
• Energy Bureau Services Outsourced bureau service managing energy data processing, reporting and administrative energy tasks on behalf of property owners and managing agents.
• Building Optimisation Management Advisory and management service to optimise building energy performance through operational improvements and controls tuning across commercial property portfolios.

Quantifiable outcome

• Annual cost savings of £180,176 and carbon emissions reduction of 144.1 tCO2e achieved for NFER
• +3 more outcomes

Named customers5 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

Partnerships

Two partnerships are on record, tiered core and minor.

• The Water Retail Company (TWRC)coreStrategic or Co-development PartnerCarbonxgen partnered with TWRC to support BNPPRE's centralised water procurement operations. The partnership achieved an 85% transfer rate within the first three months of Phase 1, demonstrating effective collaboration in water procurement services.
• SafeContractorminorOthersCarbonxgen has broadened its SafeContractor accreditation, confirming compliance with SSIP (Safety Schemes in Procurement) standards. This accreditation recognises the strength of their health and safety management and arrangements.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/carbonxgen
• Facebookfacebook.com/carbonxgen
• LinkedInuk.linkedin.com/company/carbonxgen-limited
• Instagraminstagram.com/carbonxgen

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Carbonxgen