Jim Grumbine - Operations Manager

Bids, Proposals, Contracts, Day to Day Operations

301-252-1462      This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Jim started in the construction field in 1978, his experiences include all aspects of new home construction, heavy equipment operations, all types of public works, and commercial concrete construction.

 Karl Huber - Field Operations Manager

Scheduling and Materials

301-252-1463  This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Karl has been involved in all phases of road, bridge, and commercial construction, including public works, as well as heavy equipment and mining operations since 1987.

Bill Toth - Utility Foreman / Superintendent

301-252-1465  This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Bill joined the Horizon team in 1996, his previous experience in the construction field began right out of highschool ranging from residential and commercial construction, high rise construction engineering and heavy construction equipment operator.

Melvin Nelson - Office Manager / Accounts Receivable

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Anne Mossburg - Accounts Payable

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