Accredited Market Entry

Your Proven Path to Becoming a Licensed Ofgem Energy Supplier

Bringing a new energy supplier to market in Great Britain is a complex, high-stakes journey — one that requires regulatory expertise, robust technology, and flawless execution. Too often, entrepreneurs and international entrants underestimate the capital, compliance, and operational hurdles, leading to costly delays or failed launches.

Accredited Market Entry is the proven pathway for ambitious energy suppliers seeking to secure an Ofgem license and launch successfully in GB. Combining decades of market experience, hands-on project management, and integrated market technology, we guide you through every stage — from initial feasibility to operational go-live — ensuring your investment is protected, your risks are minimised, and your business is built for growth.

Enter the GB Energy Supplier Market

We combine expert guidance, proven regulatory know-how, and pre-accredited entities to help you avoid delays, clarify capital requirements, and meet every Ofgem milestone. Our service delivers more than just a roadmap: you gain a hands-on partner and a scalable operational platform, ensuring you’re fully prepared to launch, operate, and grow successfully in the GB market.

Become a Fully Accredited Energy Supplier

Become an Ofgem licensed energy supplier quickly and efficiently with our compliant and proven optimised market entry approach.

Access to Licence Ready Entities

Gain rapid access to pre-accredited market entities with a clear route to Ofgem licensing, cutting months off traditional timelines.

Expert-Led Project Delivery

Our dedicated project managers and market experts guide every milestone, from feasibility scoping and license application, all the way through to operational go-live.

Access to Market-Leading Software

Gain access to our market-leading software, designed to manage supplier transactions and smart metering across your day-to-day industry operations and future growth — whether you are launching as a niche entrant or scaling to high volumes.

A Proven Guide to Market Entry

We have taken over 50 Energy Suppliers to market using a structured, step-by-step process with decades of industry expertise behind every milestone.

Our job isn’t just to recover lost revenue, it’s to help you understand exactly why it happened, put the right controls in place, and give you the tools to fix it for good. In energy, if you don’t have control of your data, you don’t have control of your business. We want you to reach a point where you’re confident in your numbers and no longer reliant on outside energy consulting services.
— Richard Carnall, Head of Consulting Services, ESG

ESG Serves Over 800 Customers Across the Globe

How to Become an Ofgem Licensed Energy Supplier

Becoming an Ofgem licensed energy supplier in GB involves a demanding, multi-stage process that requires careful planning, robust financials, and expert navigation of both regulatory and industry requirements.

With ESG’s Optimised Market Entry, you’ll follow a clear, proven pathway:

Feasibility Assessment & Financial Modelling

Begin with an in-depth feasibility workshop and hands-on financial modelling to understand true capital needs, likely timelines, and business viability — ensuring you’re prepared before you commit.

Business Plan & Stakeholder Alignment

Develop a comprehensive business plan, backed by realistic assumptions and clear evidence, to satisfy Ofgem and secure buy-in from your board and investors.

Pre-Accreditation & Entity Preparation

Choose either a pre-accredited shell entity or accredit your own company, completing all necessary industry qualifications and readiness checks.

Ofgem Licence Application

Submit a robust, fully evidenced application to Ofgem, addressing all regulatory requirements and proactively managing queries or clarifications.

Industry Accreditation & Market Readiness

Work through detailed industry accreditations (covering areas like billing, market messaging, and settlement) and finalize operational systems and teams.

Licence Approval & Go-Live

Once your licence is granted, transition to live operations, onboarding your first customers and scaling your business with confidence.