Dennis Hoelzer

BATAVIA, Ill. — Dennis Keith Hoelzer, 64, passed away Tuesday, Jan. 30, 2018, at his home in Batavia, after a lengthy and courageous battle with cancer.

He was born on Feb.4, 1953, in Franklin Park, Ill., and was the son of the late William and Eleanor Hoelzer. Denny was married to Mary, nee Ballent, on Sept. 8, 1979, and they were happily married for over 38 years.

Denny is also survived by their, son Brad (Elyse) Hoelzer; daughter, Jessica Hoelzer; and brother, Jim Emmel.

Denny’s dream had always been to start his own company, which he did in 1982.

Sentinel Technologies is now a high-end IT services company located in Downers Grove. Sentinel has grown and flourished under his leadership along with others that he brought on board over the past 30 years.

The company now has 500 employees and is located in six different states.

He will be deeply missed by all at Sentinel, many who consider him a close friend.

A private celebration of Denny’s life will be held by the family.

In loving memory of Denny, memorials may be made to the American Cancer Society at cancer.org.

Please visit www.NewTraditionFunerals.com to leave a message or memory.

For info, call 630-230-8399.

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