Sign up as a member

There are four classes of member of Weightless: Observers, Associate Members, Core Members and Promoters. More about the different membership classes can be found here. Becoming a Member at any class other than Observer requires signing the Weightless Licence Agreement which will be provided once registered. Associate and Core Members have full access to the Weightless Specification including the Test Specification and related Specification documents.

To register for any of the four classes of member, please fill out the form below.
The required fields will vary depending on the membership type you choose.

A summary of the Weightless Licensing Regime is available here.

Note that all member companies above Observer may be listed on the Weightless website. The primary email address provided will be used to create your Weightless account; additional email addresses may be provided to enable us to communicate with other individuals within your organisation regarding Weightless. All information is held in accordance with our privacy policy.

  • Observer


    Core Member

  • my company is already registered

  • +
Associate Members
Core Members

for companies with an annual turnover of less than GBP£1m p.a.

for companies with an annual turnover of greater than GBP£1m p.a.

for companies with an annual turnover of greater than GBP£10m p.a.