Managed IT and cloud services provider Arc has appointed Mark Darrah as its new CTO, succeeding Matt Clayden after 25 years of leadership. 

Darrah brings more than 25 years of experience in the technology and managed services sector, having previously founded and led NITC, which Arc acquired in October 2024. 

As CTO, he will oversee strategic technology leadership, enhance service capabilities and integrate customer project delivery across the business.

The London-based firm’s CEO, James Clayden, praised the appointment as a key step in the company’s growth, citing his “leadership, vision and deep understanding of the MSP landscape” as instrumental to Arc’s expansion.