Scheme Members

A voluntary scheme for flexibility providers.

Flex Assure welcomes all flexibility services providers offering energy flexibility services to business customers, including Capacity Market and Balancing Services access.

Providers must comply with the Flex Assure Code of Conduct to join, and face periodic audits to confirm ongoing adherence.

Five standards areas.

The Code of Conduct sets clear expectations across the customer journey - from first contact through contract delivery and complaints.

Read the Code of Conduct

Sales and Marketing

Representatives require proper training and must provide truthful marketing materials. Training records and sales activity documentation are mandatory.

Technical Due Diligence and Site Visits

Energy assets need cybercrime protection through best practices safeguarding customer data and infrastructure. Site visits must be conducted respectfully and securely.

Proposals and Pre-contractual Information

The process must maintain transparency, avoid false customer promises, and accurately represent savings and payback.

Customer Contracts

Contracts require accuracy and clear disclosure of customer obligations.

Complaints

Transparent procedures must exist for recording, processing, and responding to complaints.

Common questions.

Answers for flexibility services providers considering scheme membership.

Any UK flexibility services provider serving industrial, commercial, microbusiness, or domestic customers. You'll be assessed against the code of conduct relevant to your customer base.

Submit an application, undergo an independent audit against the relevant code of conduct, and on successful certification you join the members register. See /scheme-members/apply for the application form and detail.

Membership fees vary by provider size and segment. Get in touch via info@flexassure.org for the current schedule.

Members are audited on a defined cycle to verify ongoing compliance. Audits look at sales practices, contracts, data handling, complaints records, and how customer outcomes are tracked.

A recognised independent assurance mark that builds trust with energy users and networks, a competitive edge in procurement, and a clear shared standard that levels the playing field across the flexibility market.

Ready to apply?

Find out what you need, download the application form, and start your journey to becoming a Flex Assure scheme member.

Start your application

Common questions.

Answers for flexibility services providers considering scheme membership.

Any UK flexibility services provider serving industrial, commercial, microbusiness, or domestic customers. You'll be assessed against the code of conduct relevant to your customer base.

Membership fees vary by provider size and segment. Get in touch via info@flexassure.org for the current schedule.

Members are audited on a defined cycle to verify ongoing compliance. Audits look at sales practices, contracts, data handling, complaints records, and how customer outcomes are tracked.