Pantheon, website operations platform for developers, designers and marketers, names Berrie De Vet, ex-Acquia and Sitecore, vice president-sales, Europe, Middle East and Africa and Asia-Pacific regions ... CallRail, AI-powered lead intelligence platform, adds Jewel Burks Solomon, Collab Capital founder and managing partner, and ex-Google, to its board ... Somos, provider of phone number administration and identity management services, adds CasselRoad founder-CEO TJ Thinakaran to its advisory board.