The deal – for an undisclosed sum – is the fourth and largest acquisition to date by Inverness-based Aurora.

Cotech was founded by Aberdonian Mike Wallace in 2005 and provides a comprehensive range of rope access and non-rope access inspection, repair, construction and maintenance services, with the majority of its work being in the onshore and offshore wind sector.

Mike Wallace, finance director Mark Wallace, and other senior management will remain part of the enlarged business and will spearhead Cotech’s growth State-side, while exporting its expertise into European, Asian and Australian renewable energy markets. Aurora’s goal is to expand on Cotech’s 20-year footprint of providing energy services in Brazil and throughout South America.

A key component of the deal included a significant investment by Australian serial entrepreneur Niall Conlon, who is now a major shareholder of Aurora and will sit on the executive board alongside company founders Doug Duguid and Michael Buchan.

Over the next three years Cotech’s 100-strong workforce is expected to treble to more than 300 staff, and with expansion planned across the burgeoning US onshore wind power sector and on the Eastern seaboard, Aurora predicts the acquisition will boost annual revenues by £30 million and EBITDA by £3.5m over the next three years.

Aurora Energy Services CEO, Mr Duguid, said: “This strategic acquisition is important on a number of levels, giving us immediate access to the massive US wind sector, and laying the foundation for rapid expansion in Europe, Australia and Latin America.

“Mike Wallace has established an excellent highly-respected business and Cotech’s standing in the US onshore and offshore wind sector adds a layer of expertise which Aurora can utilise outwith the company’s established markets.

“We will export Cotech’s skills and experience firstly into the UK and Europe, and send key members of our Scottish team to the US to benefit from the latest training and techniques in wind energy inspection and repair services.”

Cotech Group CEO, Mike Wallace added: “Aurora’s mission statement is to grow a £100m-revenue energy services business with a global footprint and we are excited to be part of that vision.

“Our skills, which have been honed in the US wind energy and oil and gas sector, are highly transferrable and alongside staged expansion in our domestic market, we can make an important contribution to Aurora’s international ambitions.”

Niall Conlon was instrumental in growing the Australian and US businesses of EnerMech, the oil and gas services firm which Duguid and Buchan developed into a global player before its £400m+ sale to The Carlyle Group in 2018, and over a five year period he built up Australian revenues to more than $250m (around £205m).

A major component of Aurora’s launch and growth strategy included Mr Conlon taking an ownership stake and joining the management team at an appropriate juncture.

Mr Duguid added: “Niall’s track record in successfully growing businesses, identifying opportunities, and converting those into mutually beneficial client-partnerships is invaluable, and we are delighted to have him back on board.

“We have established a very strong management team with a wealth of international experience, and with other additions in the pipeline, Aurora is well placed to continue on the path to becoming a recognised name in the energy services space.”

Aurora launched in April 2023 with a stated objective of creating a £100m turnover business within five years by supporting the transition to energy net zero and providing services in the wind, solar, carbon capture & storage, pumped hydro and waste-to-energy sectors.

The Cotech transaction follows the acquisition of three UK companies – Northern Marine Services, R&M Engineering, and Inverness Access Training Services– and the owners of all four businesses are shareholders in Aurora Energy Services Ltd.

This latest deal increases the staff employed by Aurora to 275 and the company has forecast first year revenues of £35m to FY December 2023.