The new agreement is one of the biggest official beer and supply partnerships in cricket and is worth more than seven figures.
Part of the new agreement will see the development of the Moseley Arms Real Ale bar in the stadium’s RES Wyatt Stand.
Marston’s has been involved in supporting local, regional, county and national team cricket since the 1990s, with the partnership with Warwickshire CCC being one of the longest to date.
Neil Snowball, chief executive of Warwickshire CCC, said: “Marston’s has been part of the Edgbaston family for many years and it’s fantastic to secure a long-term extension to our partnership so that we can continue offering its famous ales to our loyal supporters and visiting fans from around the world.”
Marston’s Ralph Findlay added: “We are delighted to be continuing our partnership with Edgbaston which has become a key part of our association with cricket and sport as a whole across our business.
“This new deal extends our association to beyond 20 years, something that both parties are particularly proud of and we look forward to watching the venue, clubs and its team continue to grow as cricket opens up to new audiences and supporters – who we hope might enjoy a pint or two at this great ground.”