GREENVILLE, Mercer County —Mark Marmo of Harmony recently joined the Thiel College board of trustees.

Marmo received a bachelor’s degree in business administration and accounting from Thiel College in 1993.

He is president and chief executive officer for Deep Well Systems, an oil field service company in Zelienople.

The board of trustees adopts rules, regulations and policies governing Thiel College. Board members serve three-year terms and can serve up to three successive terms.