The firm, which has a local, national and international reach, has its heart firmly rooted in the Three Counties. As well as legal partners to the Warriors, the firm also sponsor Head Coach Carl Hogg and prop Ofa Fainga'anuku.
Warriors Chief Executive Charles Cameron said: "We are delighted that our relationship with Harrison Clark Rickerbys is continuing to grow. We have a varied and fast-moving business which requires advice across diverse areas, from property to sports law.
"The firm is expanding but is rooted in this area and has given this club great support since beginning its sponsorship."
Rod Thomas, Managing Partner at Harrison Clark Rickerbys, commented: "We're delighted to strengthen our association with Warriors and, with our head office in Worcester, we're keen to support the local community.
"We are well-placed to provide legal services to the club, with over 350 staff and solicitors offering expertise across a full spectrum of business and individual services from our five offices throughout the Three Counties and Thames Valley.
"Our teams are able to offer specialist advice to enable the club to grow and our partnership with Worcester Warriors is a firm endorsement of our legal expertise and abilities."
Heath Thomas, Partner and Head of Hospitality, Leisure and Sport, added: "We were pleased to be appointed by Worcester Warriors as its Preferred Legal Partner and delighted to be recognised as the firm best-placed to provide them with legal advice.
"Hospitality, Leisure and Sport is one of our firm's key sectors and we are very proud of our long-standing association with sports organisations."