Kirby Corporation conducts operations in two business segments:  Marine Transportation and Diesel Engine Services.

Through the Marine Transportation segment, Kirby operates as the premier tank barge operator in the United States, transporting bulk liquid products throughout the Mississippi River System, on the Gulf Intracoastal Waterway, along all three U.S. Coasts, and in Alaska and Hawaii. Kirby’s service includes the transporting of petrochemicals, black oil, refined petroleum products and agricultural chemical products by tank barge. Kirby also owns and operates five offshore barge and tugboat units transporting dry-bulk commodities in United States coastwise trade.

In the Diesel Engine Services segment, Kirby is the leading after-market service provider for medium-speed and high-speed diesel engines, reduction gears and ancillary products for marine and power generation applications. Kirby also serves as a distributor and service provider for high-speed diesel engines, transmissions and pumps, and manufactures and remanufactures oilfield service equipment, including pressure pumping units, for the land-based oilfield service and oil and gas operator and producer markets.

Board of Directors
Name Title Joined Board
Anne-Marie N. Ainsworth Retired President and CEO, general partner of Oiltanking Partners, L.P. and Oiltanking Holding Americas, Inc. 2015
Richard J. AlarioRetired Chairman, President and CEO of Key Energy Services, Inc.2011
Barry E. Davis President and Chief Executive Officer of Enlink Midstream Partners, LP and Enlink Midstream, LLC  2015
C. Sean Day Chairman of Teekay Corporation 1996
David W. Grzebinski President and Chief Executive Officer of Kirby Corporation 2014
Monte J. Miller Retired Executive Vice President, Chemicals, of Flint Hills Resources, LP 2006
Joseph H. Pyne Chairman of the Board of Kirby Corporation 1988
Richard R. Stewart Retired President and CEO of GE Aero Energy 2008
William M. Waterman Retired President and CEO of Penn Maritime Inc. 2012
Joseph H. PyneChairman of the Board
David W. GrzebinskiPresident and Chief Executive Officer
William G. IveyPresident – Marine Transportation Group
Joseph H. ReniersPresident – Kirby Distribution & Services, Inc.
Kim B. ClarkeVice President and Chief Human Resource Officer
Ronald A. DraggVice President and Controller
Amy D. HustedVice President and General Counsel
David R. MosleyVice President and Chief Information Officer
Renato A. CastroTreasurer
Thomas G. AdlerSecretary
Kirby Inland Marine, LP
Name Title
William G. Ivey President
Christian G. O’Neil Executive Vice President and Chief Operating Officer
James C. Guidry Executive Vice President – Vessel Operations
Mel R. Jodeit Executive Vice President – Marketing
John W. Sansing, Jr. Senior Vice President – Maintenance
William M. Withers Senior Vice President – Sales
Stephen C. Butts Vice President – Sales
Patrick C. Kelly Vice President – Sales
Lyle D. MarshallVice President – Sales
Richard C. Northcutt Vice President – Sales & Horsepower Management
Lester A. Parker Vice President – River Vessel Operations
Cliff R. Stanich Vice President – Sales
Thomas H. Whitehead Vice President – Sales
Carl R. Whitlatch Vice President and Controller
Kirby Offshore Marine, LLC
William G. IveyPresident
Christian G. O’NeilExecutive Vice President and Chief Operating Officer
James C. GuidryExecutive Vice President – Vessel Operations
John W. Sansing, Jr.Senior Vice President – Maintenance
William M. WithersSenior Vice President – Sales
Christopher T. PaloVice President – Engineering
John T. HallmarkVice President – Strategic Planning and Sales
William L. OppenheimerVice President – Maintenance
Craig N. TorngaVice President – Operations
Carl R. WhitlatchVice President and Controller
Kirby Ocean Transport Company
William G. IveyPresident
William M. WithersVice President
Osprey Line, LLC
John T. HallmarkPresident
Charles J. DuetVice President
Kirby Engine Systems, Inc.
Name Title
Dorman Lynn Strahan President
Mia Cradeur Vice President and Controller
Engine Systems, Inc.
P. Scott ManganVice President – East Coast
Marine Systems, Inc.
Lynn A. AhlemeyerVice President – Gulf Coast and West Coast
Thomas W. BottomsVice President – Midwest
Troy A. BourgeoisVice President – Sales
United Holdings, LLC
Joseph H. ReinersPresident – Kirby Distribution & Services, Inc.
Ronnie E. StoverVice President – Sales
United Engines
David L. TonneVice President – Aftermarket
United Manufacturing
Gregory L. CulpVice President
Thermo King
Jason K. RobisonVice President