Alumni has been backed since 2019 by Ironbridge Equity Partners.
EQT Infrastructure, which took Reworld private in November 2021, will remain the largest shareholder following the closing of the transaction.
Based in Denver, Mercer Advisors is a wealth management and financial planning firm.
William Blair & Company LLC acted as financial advisor to Turnspire.
The US market for services to support the charging of EV fleets is expected to be worth $15bn by 2030.
W Services founder and CEO Matthew Whelan will continue to lead the company.
The capital, which was also provided by Everside Capital Partners, was used by Sunny for a recapitalization.
Hortimex is a chemicals distributor in the food ingredients and nutraceuticals sectors.
Actis is a global investor in sustainable infrastructure.
pure11 is a German distributor of consumables for cleanrooms and other controlled environments.