More than 20 community-minded businesses attended the launch of a networking group hosted by Brighton and Hove Albion at Withdean Stadium.
A presentation on the benefits of community involvement was given by creative agency Lime.
The companies discussed their own work in the community and looked at ways of maximising the impact.
The network was developed following the launch of CommunityMark, a kite mark designed to recognise to businesses that work with and support the community.
The Albion, Family Assurance and construction firm Integra, were the first three companies in the UK to achieve the award.
Steve Ford, football in the community affairs manager of Brighton and Hove Albion, said: "Our community programme has been running for many years and we are fully aware of the business benefits to be gained."
For more information about the CommunityMark, businesses should contact Natalie Matos on 01273 770075.
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