2Suppliers
30Customers
1Debt Items
20Related Chains

Source-Backed Evidence Depth

Kirby Corporation (KEX) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.

42Total relationships
3Distinct source URLs
17High confidence
0.726Average confidence
2026-09-13Latest database update
ChainSifter does not infer unreported suppliers, customers, ownership, acquisitions, debt exposure, revenue dependency, or future supply-chain events on this public page.

Kirby Corporation Suppliers

TickerNameConfidenceEvidence
KMT Kennametal Inc. 80% KDS also provides service to KMT, which accounted for approximately 2% of KDS's 2025 and 2024 revenues and 3% of the segment's 2023 revenues.
KMT Kennametal Inc. 80% Reciprocal relationship from KMT graph: Reciprocal relationship from KEX graph: KDS also provides service to KMT, which accounted for approximately 2% of KDS's 2025 and 2024 revenues and 3% of the se…

Kirby Corporation Customers

TickerNameConfidenceEvidence
INLAND-RIVER-CARRIERS INLAND-RIVER-CARRIERS 90% Commercial and Industrial market customers include Inland River Carriers — Dry and Liquid, Offshore Towing — Dry and Liquid, Offshore Oilfield Services — Drilling Rigs & Supply Boats, Harbor Towing, …
KDS KDS 90% Three KDS customers accounted for approximately 9% of the Company's 2025 revenue, 10% of 2024 revenue, and 12% of 2023 revenue.
KMT Kennametal Inc. 90% Reciprocal relationship from KMT graph: Reciprocal relationship from KEX graph: Five KMT customers accounted for approximately 17% of the Company's 2025 revenue, 18% of 2024 revenue, and 16% of 2023 …
KMT Kennametal Inc. 90% Five KMT customers accounted for approximately 17% of the Company's 2025 revenue, 18% of 2024 revenue, and 16% of 2023 revenue.
OFFSHORE-TOWING OFFSHORE-TOWING 90% Commercial and Industrial market customers include Inland River Carriers — Dry and Liquid, Offshore Towing — Dry and Liquid, Offshore Oilfield Services — Drilling Rigs & Supply Boats, Harbor Towing, …
OIL-AND-GAS-OPERATORS-AND-PRODUCERS OIL-AND-GAS-OPERATORS-AND-PRODUCERS 90% Oil and Gas market customers include Oilfield Services, Oil and Gas Operators and Producers
OILFIELD-SERVICES OILFIELD-SERVICES 90% Commercial and Industrial market customers include Inland River Carriers — Dry and Liquid, Offshore Towing — Dry and Liquid, Offshore Oilfield Services — Drilling Rigs & Supply Boats, Harbor Towing, …
POWER-GENERATION-EQUIPMENT POWER-GENERATION-EQUIPMENT 90% Power Generation market customers include Power Generation & Standby Power Generation Equipment, Power Generation Rentals & Related Service, Data Centers
KIRBY-OCEAN-TRANSPORT-COMPANY KIRBY-OCEAN-TRANSPORT-COMPANY 85% ivities fed back electronically to the customer service department. The electronic interface between the customer service department and the vessel enables matching of customer needs to barge capabil…
NORLAKE-MANUFACTURING-COMPANY NORLAKE-MANUFACTURING-COMPANY 85% products to the nuclear industry, the worldwide distributor of Cooper Machinery Services (“Cooper”) products to the nuclear industry and owns the assets and technology necessary to support the Nordbe…
OIL-STATES-INDUSTRIES-INC OIL-STATES-INDUSTRIES-INC 85% ertain foreign geographic regions including Mexico, Central America, the northern part of South America and the Caribbean islands. The Company is also a distributor and representative for certain Alf…
OIS Oil States International, Inc. 85% Reciprocal relationship from OIS graph: Reciprocal relationship from KEX graph: Reciprocal relationship from OIS graph: Reciprocal relationship from KEX graph: Reciprocal relationship from OIS graph:…
OILFIELD-SERVICE-COMPANIES OILFIELD-SERVICE-COMPANIES 80% Customers include oilfield service companies, and oil and gas operators and producers.
ARMK Aramark 72% , a Master of Science degree in Finance from Texas A&M University, and a Bachelor of Business Administration degree in Accounting from Texas A&M University. He has served as Vice President, Investor …
ARMK Aramark 72% Reciprocal relationship from ARMK graph: Reciprocal relationship from KEX graph: Reciprocal relationship from ARMK graph: Reciprocal relationship from KEX graph: Reciprocal relationship from ARMK gra…
ADAPTIVE-KRM-LLC ADAPTIVE-KRM-LLC 62% mployees and third parties, and pollution and other environmental damages. The Company maintains hull, liability, general liability, workers compensation and pollution liability insurance coverage ag…
COASTAL-TOWING-INC COASTAL-TOWING-INC 62% , a Master of Science degree in Finance from Texas A&M University, and a Bachelor of Business Administration degree in Accounting from Texas A&M University. He has served as Vice President, Investor …
CONVOY-SERVICING-COMPANY CONVOY-SERVICING-COMPANY 62% ship and service rights, or a disruption of the supply of EMD parts, could have a negative impact on the Company’s ability to service its customers. In 2020, with the acquisition of Convoy Servicing …
DOW Dow Inc. 62% Reciprocal relationship from DOW graph: Reciprocal relationship from KEX graph: erial training includes an online training curriculum that is available to both supervisory employees and those employe…
DOW-CHEMICAL-COMPANY DOW-CHEMICAL-COMPANY 62% erial training includes an online training curriculum that is available to both supervisory employees and those employees that aspire to move into such roles in the future. It includes a series of cl…
ENGINE-SYSTEMS-INC ENGINE-SYSTEMS-INC 62% “Marine Systems”) and Engine Systems, Inc. (“Engine Systems”), serves three markets, commercial and industrial, power generation, and oil and gas. The Company provides equipment, after-market parts a…
FMC-TECHNOLOGIES-INC FMC-TECHNOLOGIES-INC 62% erial training includes an online training curriculum that is available to both supervisory employees and those employees that aspire to move into such roles in the future. It includes a series of cl…
FTI TechnipFMC plc 62% Reciprocal relationship from FTI graph: Reciprocal relationship from KEX graph: Reciprocal relationship from FTI graph: Reciprocal relationship from KEX graph: erial training includes an online train…
HIGMAN-MARINE-INC HIGMAN-MARINE-INC 62% Offshore Towing — Dry and Liquid, Offshore Oilfield Services — Drilling Rigs & Supply Boats, Harbor Towing, Dredging, Great Lakes Ore Carriers, Pleasure Crafts, On and Off-Highway Transportation, Pum…
HOLLYWOOD-MARINE-INC HOLLYWOOD-MARINE-INC 62% cycling facility portion of the USOR Site after it was acquired by U.S. Oil Recovery from the City of Pasadena in January 2009. The EPA and the PRP Group entered into an Administrative Settlement Agr…
IN-KMT-COMPANY IN-KMT-COMPANY 62% adversely impact availability of materials, components, and equipment for construction, maintenance or repair, including with regard to KMT vessels or in KDS manufacturing. In KMT, Company also trans…
KIRBY-ENGINE-SYSTEMS-LLC KIRBY-ENGINE-SYSTEMS-LLC 62% to move cargo from a specific origin to a designated destination for a rate negotiated at the time the cargo movement takes place. Spot contract rates are at the current “market” rate and are subject…
KIRBY-OFFSHORE-MARINE-LLC KIRBY-OFFSHORE-MARINE-LLC 62% cycling facility portion of the USOR Site after it was acquired by U.S. Oil Recovery from the City of Pasadena in January 2009. The EPA and the PRP Group entered into an Administrative Settlement Agr…
KIRBY-OFFSHORE-WIND-LLC KIRBY-OFFSHORE-WIND-LLC 62% erial training includes an online training curriculum that is available to both supervisory employees and those employees that aspire to move into such roles in the future. It includes a series of cl…
OHIO-RIVER-VALLEY-SAN-JAC-MARINE-LLC OHIO-RIVER-VALLEY-SAN-JAC-MARINE-LLC 62% ivities fed back electronically to the customer service department. The electronic interface between the customer service department and the vessel enables matching of customer needs to barge capabil…

Kirby Corporation Debt Obligations

InstrumentDescriptionConfidenceEvidence
KEX-DEBT Debt stack $1.0B 90% Market cache reports total debt of $1.0B.

Kirby Corporation Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for Kirby Corporation.

Kirby Corporation Ownership

HolderNameConfidenceEvidence
KEX-OWNER-MORGAN-STANLEY MORGAN STANLEY 90% 13F overlay lists MORGAN STANLEY as top holder; 437 tracked holders.

Kirby Corporation Extended Supply Chain Network

TickerNameChain IndexHopsRelationship Types
DOW Dow Inc. 100.00 1 ['customer']
FTI TechnipFMC plc 100.00 1 ['customer']
VSTS Vestis Corporation 100.00 2
FISI Financial Institutions, Inc. 100.00 2
OIS Oil States International, Inc. 100.00 1 ['customer']
KDS KDS 60.75 1 ['receiving']
KMT Kennametal Inc. 60.75 1 ['customer', 'supplier']
BKR Baker Hughes Company 50.00 2
VMI Valmont Industries, Inc. 50.00 2
GSM Ferroglobe PLC 50.00 2
STX Seagate Technology Holdings plc 50.00 2
VENU Venu Holding Corporation 50.00 2
SGMO Sangamo Therapeutics, Inc. 50.00 2
TSE Trinseo PLC 50.00 2
TS Tenaris S.A. 50.00 2
INVX Innovex International, Inc. 50.00 2
OII Oceaneering International, Inc. 50.00 2
PESI Perma-Fix Environmental Services, Inc. 50.00 2
AKO-A Embotelladora Andina S.A. 50.00 2
BGC BGC Group, Inc. 50.00 2
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KEX
Unlock KEX Supply Chain Data
Verified relationships include:
KMTKennametal Inc.Supplier80%
KMTKennametal Inc.Supplier80%
INLAND-RIVER-CARRIERSINLAND-RIVER-CARRIERSCustomer90%
KDSKDSCustomer90%
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