Gregor is co-chair of the global Entertainment and Media Industry Group at international law firm Reed Smith. He is a digital media specialist, and is one of the UK’s leading music and entertainment lawyers. He regularly advises companies involved in the distribution and sale of content, such as digital music, video and gaming services, social networks, and platform owners. He also advises content owners, including computer game companies, film and television production houses, record labels, and advertisers on how best to protect and monetise their intellectual property. Greg also works with innovative start-up companies to help them leverage their new technology and grow quickly. Legal industry directories describe Greg as a "digital carriage superstar", and consistently rate him in the Tier 1 of advisors in his sector, recognising his knowledge of digital music copyright issues and "unrivalled experience in the market". The International Who’s Who of Sports and Entertainment lawyers has described Gregor’s digital media practice as “second to none”. In acknowledgement of his work in the sector, Gregor was listed in the ‘Top 100 Most Influential People in Digital Media’ in Wired Magazine and was featured in the ‘TechCity Insider 100’ list. He is a member of the Advisory Panel for the UK Government’s ‘Future Fifty’ programme for high-growth companies and has sat on the Committee of the Internet and Media Leadership Group of the Prince’s Trust charity.