Rivean Capital, a mid-market private equity, agreed to acquire Intero Integrity Services, a specialist for keeping critical infrastructure clean, safe, well maintained, and highly productive, from First Reserve, an investment firm. Financial terms were not disclosed. "With the backing of our partners at Rivean, I am confident that Intero will accelerate growth, expand and diversify our service offerings, and become a vital partner helping drive success for our customers. We look forward to this exciting new phase for Intero, where we will continue to expand our unique blend of technological innovations, critical inspection, advanced environmental services, and industrial services. This will ensure safety, integrity, and enhanced performance of mission-critical infrastructure around the world. We would also like to thank First Reserve for their invaluable support over the course of our partnership," Rienk de Vries, Intero CEO.