Heidi Davidson, senior VP of corporate communications for BlackBerry, is leaving the tech company after four years as it continues to mount a comeback.

heidi davidsonThe New York-based MasterCard and Brodeur Worldwide alum earlier handled the BlackBerry account at Brodeur and helped guide its meteoric rise in the device realm through its current challenges in a crowded market.

"Heidi has made a significant contribution to the company through several transitions," Blackberry said in a statement.

Adam Emery is VP of corporate communications for the company. He joined in 2012 from Hill+Knowlton Strategies.

Blackberry CEO John Chen said this week that the company's reputation is "one of the biggest things that I'm working and struggling with." He told an event in Canada that the company is "now out of trouble in terms of financial, but we haven't established a growth . . . until that happens nobody will go willingly buy our products.

Chen took the reins as Blackberry's fourth CEO in 2013.

Blackberry consolidated its PR with Text 100 and APCO Worldwide in 2013, parting with longtime firm Brodeur in a rocky split.