Global sustainability leader Anthesis has chosen Fight or Flight, a London-based communications agency, as its first corporate communications partner. The aim is to significantly raise awareness of Anthesis' work in the US and UK across business, technology, and broadcast media.Since its founding in 2013, Anthesis has grown into a force of 1,400 specialists across 23 countries. The company empowers businesses to navigate critical social issues like climate change, environmental protection, human rights, and diversity & inclusion. Their impressive client list includes names like Nestlé, Tesco, Target, and Microsoft.This partnership comes on the heels of a brand refresh marking Anthesis' 10th anniversary and a series of strategic acquisitions this year, including sustainability consultancy Given, reporting specialist BuzzWord, and global purpose strategy firm Revolt. Additionally, investment firm Carlyle acquired a majority stake in Anthesis last July.At Fight or Flight, senior director Tali Kramer, will lead the Anthesis account. Kramer joined the agency in late 2023 from Instinctif Partners to spearhead their corporate reputation services. She will be supported by sustainability lead Rachael Bolton."Following tremendous organic growth and key acquisitions," said Anthesis group CMO Kirsten Doddy, "Anthesis offers a comprehensive suite of services to drive transformation, restoration, and responsible business practices across an organization's value chain. This is the perfect time to supercharge our PR efforts."Doddy continued: "Fight or Flight impressed us with their media connections, storytelling expertise, and understanding of sustainability issues. Their proactive approach aligns with our own, and we're thrilled to partner with them at this crucial juncture for Anthesis."Kramer echoed Doddy's enthusiasm, stating, "We are eager to collaborate with Kirsten and the Anthesis team to share their incredible story and how they guide clients through complex sustainability challenges. The impact they have in driving leading companies towards sustainable practices is truly inspiring."Fight or Flight, founded in 2020 by former Weber Shandwick tech leaders, has experienced rapid growth. The 50-person agency, with offices in London and New York, saw its revenue increase by over 30% last year, exceeding £4.5 million in 2023. Their client portfolio includes AMEX GBT, LinkedIn, Expedia, Nokia, Sky, and Trainline.