At the top

Opportunity Partners, Minnetonka, named Armando Camacho president and chief executive effective Jan. 13. Camacho was president of Neighborhood House and a principal for the Minneapolis Public School District. He has served on the board for Greater Twin Cities United Way, MAP for Nonprofits and the St. Paul ­Rotary Club.

Rahr Corp., Shakopee, named William Rahr chief executive effective October 2014. Rahr is a great-great-grandson of the founder and joined Rahr Corp. in 1998. He has been a member of the board since 2005.

Moving up

The Nerdery, Bloomington, named Bill Titler vice president of sales. Titler was ­director of corporate sales and has worked for Datanautics Software and Andersen Consulting. The Nerdery also named John Mathiasen vice president of operations. Mathiasen was executive operations analyst and has worked for Dexma.

Enventis, Mankato, named Darren Peterson vice president of product marketing. Peterson joined Enventis in 2010 and was senior manager of product management. He has worked for Comm-Works and the Southwestern Co. and has served on the Mounds View Parks, Recreation and Forestry Commission.

On the move

Knutson Construction, Golden Valley, named Todd Vigil vice president of project development. Vigil was director of business development at M.A. Mortenson Co. and has more than 20 years of experience in commercial construction.

Minnesota United FC, Golden Valley, named Andrea Yoch vice president of business development. Yoch was digital sales manager for KARE 11 and has worked for Northway Sales and Marketing, Internet Broadcasting and WCCO ­Radio. ­Minnesota United FC also named Mikkala Korton corporate sales representative. Korton has worked for the Minnesota Twins and Minnesota State ­University, Mankato.

On the board

The Federal Reserve Bank of Minneapolis named Randal Hogan, chairman and CEO of Pentair, chairman of the board. Maykao Hang, president and CEO of the Amherst H. Wilder Foundation, was named deputy chairwoman. Kendall Powell, chairman and chief executive of General Mills, and Catherine Kelly, president and chief executive of Minnesota Bank and Trust, were named to the board.

The Public Company Accounting Oversight Board appointed Rachel Polson to the standing advisory group. Polson is a partner at Baker Tilly Virchow Krause and serves on the board of TeamWomenMN.

Qumu, Edina, named Dan Fishback to the board. Fishback has served in senior executive positions at DemandTec, Ariba, Trading Dynamics and Hyperion Solutions.