RSK Group Limited has acquired four businesses across the environmental services sector.

New businesses Carbon Zero Consulting, Envireau Water, Enviroflow and Streetwise are the latest in a series of recent acquisitions to the group, affirming the company’s desire to grow and diversify the business to ensure it can support global clients as they work towards achieving the United Nations Sustainable Development Goals.

Rutland-based Carbon Zero Consulting are expert advice providers in renewable energy, ground source heat pump technology selection, boreholes and groundwater management, and have almost 40 years of experience spanning natural resource, environment and water treatment technology issues. With the government’s recently published Heat and Buildings Strategy focusing heavily on implementing low carbon heat pumps, this acquisition further strengthens RSK’s renewable energy and renewable heating offering, a market area where there will be significant growth in the months and years to come as the UK moves towards net zero emissions.


Envireau Water, whose core services cover industrial and private water supplies, flood risk management and drainage and water treatment amongst others, are very well respected by their private sector clients and expand RSK’s hydrogeology and hydrology capabilities. By joining RSK and collaborating with the existing companies in the group, Envireau Water will continue to deliver the excellent service they are known for while also exploring new opportunities across the public sector.

Specialist waste management company Enviroflow provides investigation, maintenance, and repair of underground drainage assets for local authorities, utilities providers, the Highways Agency and other commercial customers. The business will bolster RSK’s offering in below ground asset management services and will provide many synergistic opportunities in relation to RSK’s ongoing growth in civil and structural engineering supporting construction, national infrastructure and other developments requiring below ground asset management services.

Streetwise, which specialises in traffic management services on low and high-speed roads, delivers services for key clients including Northern Gas Networks, Amey Utilities and Sunbelt Rentals. The acquisition improves RSK group’s position in highways management and enable us to deliver additional work for existing clients. Streetwise will work closely with RSK's businesses, looking for collaboration and cross-selling opportunities.

All businesses will retain their current workforce, leadership, brand, values, strategy  and culture, whilst gaining support and reputation from a much larger parent organisation.