ACA Connects promotes Zamir Ahmed to senior vice president-external affairs and Bill Tortoriello to vice president-technology and policy ... Cerence AI appoints Brian Krzanich, former CDK Global, as CEO-board member, succeeding the departing Stefan Ortmanns … Blue Mantis, provider of digital strategy and services including cybersecurity, advances Jay Martin to chief information security officer … Cybersecurity provider Intel 471 appoints Mark Huebeler, previously with MercuryGate International, as COO and CFO ... Data center solutions provider EdgeConneX names Masahiko Inoue, ex-Aquila Clean Energy, head-Japan ... IT services provider NinjaOne names Joel Carusone, previously Zeno Technologies, as senior vice president-data and AI ... Digital accessibility solutions Level Access appoints Mark Zablan, ex-Emplifi, as CEO, succeeding Tim Springer, remaining on board.