WESTPORT — Steve Obsitnik has made his bid for the state’s top office official.

Obsitnik, 50, has ended his exploratory committee, and as of Oct. 1, officially registered his candidate committee for governor, according to the Connecticut State Enforcement Elections Commission.

At the beginning of the year Obsitnik, a Westport Republican, registered his exploratory committee for all statewide offices, except treasurer.

Obsitnik was raised in Stamford and served in the U.S. Navy before working as a business executive in Silicon Valley and Connecticut. Most recently, he was CEO of Quintel, a provider of wireless infrastructure to mobile operators in the United States, Europe and Asia. He is an adjunct professor at the Jack Welch School of Business at Sacred Heart University in Fairfield, according to his campaign website.

In 2012, Obsitnik lost to incumbent Democrat Rep. Jim Himes in the Congressional race for the state’s fourth district.

Last year Obsitnik co-founded Imagine CT, an advocacy group with a stated mission of making Connecticut, “a top 10 job creation state in 10 years.”

According to the state’s State Elections Enforcement Commission (SEEC), Obsitnik’s exploratory committee raised $265,363 as of Sept. 30.

Gov. Dannel Malloy, a Democrat, has said he will not seek a third term next year.

Obsitnik joins nine Republicans who have declared as Republican gubernatorial candidates and two Democrats. Dozens of others are exploring their options or are considered potential candidates.