David Oberkircher, 58, a founding partner of the Trion Group

David O. Oberkircher, 58, of Collegeville, a benefits and insurance company executive, died Oct. 30 of cancer at his home.

Mr. Oberkircher was one of four founding partners in 1999 of the Trion Group, which grew into one of the largest privately held employee benefits consultants combined with an insurance brokerage in the United States.During the next 11 years, he helped grow Trion from a $10 million to a $73 million business.

In 2010, he helped oversee Trion's acquisition by Marsh & McLennan, a global risk management and human resources consulting firm. The merged company, still called Trion, is based at 2300 Renaissance Blvd., King of Prussia.

Trion practice leader Mark Cornish said Mr. Oberkircher was a welcoming but "very, very strong" leader who "didn't spend more than 30 seconds on anything."

"In the course of a given day, he might take more actions than anyone else would take in a month," Cornish said.

A nationally recognized leader in his industry, Mr. Oberkircher sat on the Board of the Council for Insurance Agents and Brokers, and other industry advisory boards.

Born in Buffalo to Barbara Stewart and Dr. Paul Oberkircher Sr., he was reared in Paoli. Mr. Oberkircher graduated in 1975 from Great Valley High School, Malvern. Four years later, he earned a bachelor's degree in government and law from Lafayette College, Easton.

Mr. Oberkircher was also known as a philanthropist and civic volunteer. He donated money to Inglis House in Philadelphia, Lafayette College, and the Schwenkfelder Library and Heritage Center in Pennsburg.

He gave generously to Children's Hospital of Philadelphia and underwrote the Oberkircher Discovery Center at the Elmwood Park Zoo in Norristown, his family said.

He served on the board of trustees of Germantown Academy, and for a time was the board's chairman.

He was active on several committees of the Children's Hospital of Philadelphia Foundation and sat on the board of the Philadelphia Ronald McDonald House.

He was a member of Sunnybrook Golf Club, Merion Golf Club, and the Wanderer's Club of Wellington, Fla., where he spent winters.

He is survived by his wife, Kathleen McGinnis Oberkircher; daughters Katherine and Margaret; a son David; three brothers; and many nieces and nephews.

Services were Nov. 4.

Donations may be made to Inglis House, 2600 Belmont Ave., Philadelphia 19131, or at www.inglis.org.