WysePower has been in business  since 1958 and began by providing temporary electrics, hoists, cranes, cabins and general plant.

Today it is a market leader in temporary site services, with more than 260 directly employed and qualified staff operating from eight regional UK offices along with operations in five European countries.

Latest filed accounts for the year to March 31 2021 show WysePower recorded an annual turnover of £25m generating a pre-tax profit of £3.8m.

WyseBase is part of the WysePower group and offers a carbon-neutral and cost-effective alternative to traditional concrete foundations for modular and building set-ups, as well as ground stabilisation and walkway solutions.

This enables the installation of stacked cabins of various heights without breaking ground. In addition, the foundations are made from recycled materials and are fully recyclable after use, which will save on average 1.66 tonnes of carbon for each tonne of concrete produced.

Recent WysePower projects include data centres across the UK, Europe and Scandinavia, Gigafactories, HS2 works, Grade 1-listed buildings, extensive commercial and retail developments and a multitude of high-quality residential schemes.

Managing Director Shawn Callaghan, who will continue to lead the business, said: “For more than 60 years, we have developed and maintained the trust and support of our clients, who appreciate the breadth of our service packages, the quality of our designs and installations and the dedication of our employees.

“We look forward to continuing this work, specialising in prestige projects and emerging market sectors, such as high-tech manufacturing, hyperscale data centres and major infrastructure projects while benefitting from the growth RSK can offer.

“This gives us the opportunity to enhance our project work and client relationships by working with a host of RSK businesses from the same or related sectors.”

RSK Group Chief Executive Officer Alan Ryder said: “I’m pleased to welcome WysePower and its 260 employees into RSK. Temporary site services remain in high demand despite the ongoing economic slowdown, and I expect this will only continue.

“Beyond this, WysePower is a great cultural fit in our group; the ethos and values of the business are very similar to those of the wider RSK family, so I have no doubt they will settle in quickly.”

Rapidly expanding RSK now comprises more than 175 companies, employing 10,000 people.

The group’s annual turnover at the end of FY22 is expected to be in excess of £800m – more than double that of the previous year.

FRP Corporate Finance advised the shareholders of WysePower on its sale to RSK