Nottingham-headquartered, Phenna Group, which invests in and partners with selected niche, independent Testing, Inspection, Certification and Compliance (TICC) companies, has acquired STM Environmental.
This acquisition is the firm’s second deal in 2025 and adds service and geographic extension to its Infrastructure division.
Established in 2004, STM Environmental is based in Twickenham, London and provides a diversified offering of environmental consulting services to the public and private sector.
This is predominantly focussed on the supply of geo-environmental and flood risk & drainage services and complemented with the development and supply of environmental data management systems to Local Authorities.
Simon Makoni, Director of STM Environmental Consultants, expressed his enthusiasm for the acquisition: “We’re thrilled that the Phenna Group has recognised our hard work, success, and potential.
“Selecting the right partner to aid our ambitious growth plans was a big decision for myself and the STM Environmental team, but from our first engagement with Phenna, we felt confident that we’d found the right partner. I am excited to collaborate with Stuart and his team as we embark on the next phase of growth.”
Stuart Abbs, Divisional MD, Infrastructure at Phenna Group, said: “I am very excited to welcome Simon and his team to Phenna Group.
“STM Environmental have an excellent reputation in delivering top-tier environmental services for private and public sector clients and their capability perfectly complements our existing capabilities. I am excited to see the STM Environmental team deliver on their exciting growth plans.”
Phil Marshall, CEO of Phenna Group, added: “I am delighted that Simon and his team have decided to join our Group and warmly welcome them to our team.
“STM Environmental is a market leader in the environmental consulting space and this acquisition boosts our current service offering within the Infrastructure division. I look forward to seeing Simon and his team excel within Phenna.”
Phenna Group were advised by RSM UK and Browne Jacobson. STM Environmental were advised by Oaklins and Hemingways.
