Adrian Guerra and Kevin Johnson were promoted to partner and principal posts, respectively, at private equity firm CapStreet Group LLC, effective Jan. 1.

Guerra, who joined the Houston-based company in 2006, was most recently a member of CapStreet's Allied, Red Aviation, General LED, CRS and Revention portfolio company teams.

Johnson came on board in 2014 and is now part of the CRS, Incentive Solutions and Revention portfolio teams.