Sarah Gibson and Eugenia Grilli, who have 30 years’ service between them, bring the number of partners at the London-headquartered landscape architecture and urban design to eight.
Gillespies said the move "will strengthen the firm’s capability to further grow and diversify its already high-profile UK and international portfolio of work."
During 26 years at the firm, Gibson has been instrumental in developing landscape planning expertise across the practice and made a significant contribution to the growth of Gillespies’ Manchester studio. She is currently working on challenging and high-profile projects for clients including HS2, National Grid and a number of local authorities.
Eugenia Grilli joined Gillespies' London studio in 2015 and rapidly established herself as a leading figure within the practice, showing particular ability designing complex and transformational landscapes. She has been a driving force behind Gillespies’ international expansion with new projects based in South America, Russia, Cyprus, Italy and the UK. She is currently leading the design on landscape-led residential developments in Moscow, Russia, as well as a major public plaza in Bogota, Colombia with leading architects Roger Stirk Harbour and Partners.
Gillespies managing partner Steve Wardell said: "These two promotions represent our ongoing commitment and desire to continue to grow the business and to recognise and reward skill and talent.
"Both Sarah and Eugenia have significantly contributed to our success, and their breadth of experience and expertise will be invaluable as we embark on the next exciting stage of our practice’s growth. I am proud and delighted to welcome these passionate, talented and dedicated women into the partnership."
Gillespies has been in business 55 years and offers landscape design, landscape planning, urban design and masterplanning, with offices in London, Oxford, Manchester, Leeds, Abu Dhabi and Moscow.
Recent UK successes have included being chosen to develop a public realm strategy for Ebbsfleet Garden City in Kent, making the shortlist of the Ebbsfleet Design Competition and work on the design team of £100m lifestyle destination on the banks of the River Clyde in Glasgow for developer Peel Lifestyle Outlets.