3Suppliers
30Customers
1Debt Items
20Related Chains

Source-Backed Evidence Depth

Park-Ohio Holdings Corp. (PKOH) 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.

36Total relationships
3Distinct source URLs
27High confidence
0.831Average 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.

Park-Ohio Holdings Corp. Suppliers

TickerNameConfidenceEvidence
INTT InTest Corporation 85% Reciprocal relationship from INTT graph: Reciprocal relationship from PKOH graph: Reciprocal relationship from INTT graph: Reciprocal relationship from PKOH graph: Reciprocal relationship from INTT g…
GE GE Aerospace 72% large existing base of mechanical forging presses and hammers in North America. We machine, induction harden and surface finish crankshafts and camshafts, used primarily in locomotives. We forge aero…
GE GE Aerospace 72% Reciprocal relationship from GE graph: Reciprocal relationship from PKOH graph: large existing base of mechanical forging presses and hammers in North America. We machine, induction harden and surfac…

Park-Ohio Holdings Corp. Customers

TickerNameConfidenceEvidence
AEROSPACE-AND-DEFENSE AEROSPACE-AND-DEFENSE 90% Our Supply Technologies business services customers in the following principal industries: heavy-duty truck; power sports and recreational equipment; aerospace and defense
AGRICULTURAL-EQUIPMENT AGRICULTURAL-EQUIPMENT 90% Assembly Components products are primarily used in the following industries: including automotive and light-vehicle; agricultural equipment
AUTOMOTIVE-AND-LIGHT-VEHICLE AUTOMOTIVE-AND-LIGHT-VEHICLE 90% Assembly Components products are primarily used in the following industries: including automotive and light-vehicle
AUTOMOTIVE-INDUSTRY-CUSTOMERS AUTOMOTIVE-INDUSTRY-CUSTOMERS 90% As of December 31, 2025 and 2024, the Company had uncollateralized receivables with five customers in the automotive industry, each with several locations, aggregating $ 30.4 million and $ 22.1 milli…
BUS BUS 90% Assembly Components products are primarily used in the following industries: including automotive and light-vehicle; agricultural equipment; construction equipment; heavy-duty truck; and bus
COATINGS COATINGS 90% The principal customers of Engineered Products are OEMs, sub-assemblers and end users in the following industries: ferrous and non-ferrous metals; coatings
CONSTRUCTION-EQUIPMENT CONSTRUCTION-EQUIPMENT 90% Assembly Components products are primarily used in the following industries: including automotive and light-vehicle; agricultural equipment; construction equipment
CONSUMER CONSUMER 90% Our Supply Technologies business services customers in the following principal industries: heavy-duty truck; power sports and recreational equipment; aerospace and defense; semiconductor equipment; e…
ELECTRICAL-DISTRIBUTION-AND-CONTROLS ELECTRICAL-DISTRIBUTION-AND-CONTROLS 90% Our Supply Technologies business services customers in the following principal industries: heavy-duty truck; power sports and recreational equipment; aerospace and defense; semiconductor equipment; e…
FERROUS-AND-NON-FERROUS-METALS FERROUS-AND-NON-FERROUS-METALS 90% The principal customers of Engineered Products are OEMs, sub-assemblers and end users in the following industries: ferrous and non-ferrous metals
FIVE-LARGEST-CUSTOMERS FIVE-LARGEST-CUSTOMERS 90% The five largest customers, to which Supply Technologies sells through sole-source contracts to multiple operating divisions or locations, accounted for approximately 36% and 34% of the sales of Supp…
FORGING FORGING 90% The principal customers of Engineered Products are OEMs, sub-assemblers and end users in the following industries: ferrous and non-ferrous metals; coatings; forging
FOUNDRY FOUNDRY 90% The principal customers of Engineered Products are OEMs, sub-assemblers and end users in the following industries: ferrous and non-ferrous metals; coatings; forging; foundry
HEAVY-DUTY-TRUCK HEAVY-DUTY-TRUCK 90% Our Supply Technologies business services customers in the following principal industries: heavy-duty truck
OIL-AND-GAS OIL-AND-GAS 90% The principal customers of Engineered Products are OEMs, sub-assemblers and end users in the following industries: ferrous and non-ferrous metals; coatings; forging; foundry; heavy-duty truck; constr…
POWER-GENERATION POWER-GENERATION 90% The principal customers of Engineered Products are OEMs, sub-assemblers and end users in the following industries: ferrous and non-ferrous metals; coatings; forging; foundry; heavy-duty truck; constr…
POWER-SPORTS-AND-RECREATIONAL-EQUIPMENT POWER-SPORTS-AND-RECREATIONAL-EQUIPMENT 90% Our Supply Technologies business services customers in the following principal industries: heavy-duty truck; power sports and recreational equipment
RAIL FreightCar America, Inc. 90% The principal customers of Engineered Products are OEMs, sub-assemblers and end users in the following industries: ferrous and non-ferrous metals; coatings; forging; foundry; heavy-duty truck; constr…
RAIL FreightCar America, Inc. 90% Reciprocal relationship from RAIL graph: Reciprocal relationship from PKOH graph: The principal customers of Engineered Products are OEMs, sub-assemblers and end users in the following industries: fe…
SEMICONDUCTOR-EQUIPMENT SEMICONDUCTOR-EQUIPMENT 90% Our Supply Technologies business services customers in the following principal industries: heavy-duty truck; power sports and recreational equipment; aerospace and defense; semiconductor equipment
GE GE Aerospace 85% Reciprocal relationship from GE graph: Reciprocal relationship from PKOH graph: Reciprocal relationship from GE graph: Reciprocal relationship from PKOH graph: large existing base of mechanical forgi…
GE GE Aerospace 85% large existing base of mechanical forging presses and hammers in North America. We machine, induction harden and surface finish crankshafts and camshafts, used primarily in locomotives. We forge aero…
HEAVY-DUTY-TRUCK-CUSTOMERS HEAVY-DUTY-TRUCK-CUSTOMERS 80% We rely on several key customers. For the year ended December 31, 2025, our ten largest customers accounted for approximately 25% of our net sales.
MULTINATIONAL-CUSTOMERS MULTINATIONAL-CUSTOMERS 80% Remaining sales were primarily to manufacturing facilities of large, multinational customers located in Europe, Mexico, Asia and Canada.
INTT InTest Corporation 72% Reciprocal relationship from INTT graph: sciences products include Panasonic Health Care Holdings Corporation, Haier Group Corporation, Thermo Fisher Scientific Corporation, and Eppendoerf AG. Our pr…
SUPPLY-TECHNOLOGIES-CUSTOMERS SUPPLY-TECHNOLOGIES-CUSTOMERS 70% Supply Technologies markets and sells to over 7,000 customers domestically and internationally.
ANGSTROM-AUTOMOTIVE-GROUP ANGSTROM-AUTOMOTIVE-GROUP 62% can be made. See Note 2 for additional disclosures regarding revenue. Cost of Sales : Cost of sales is primarily comprised of direct materials and supplies consumed in the manufacture of product, man…
MARKETING-SUPPLY-TECHNOLOGIES MARKETING-SUPPLY-TECHNOLOGIES 62% the basis of product quality and precision. Sales and Marketing Supply Technologies markets its products and services in the United States, Mexico, Canada, Europe and Asia primarily through its direc…
RB-W-CORPORATION RB-W-CORPORATION 62% 2026 period compared to the same period a year ago due primarily to higher tariffs in the 2026 period, which impacted gross margins. Assembly Components Segment Three Months Ended March 31, 2026 2025…
SUPPLIERS-SUPPLY-TECHNOLOGIES SUPPLIERS-SUPPLY-TECHNOLOGIES 62% s and services in the United States, Mexico, Canada, Europe and Asia primarily through its direct sales force, which is assisted by applications engineers who provide the technical expertise necessar…

Park-Ohio Holdings Corp. Debt Obligations

InstrumentDescriptionConfidenceEvidence
PKOH-DEBT Debt stack $530.9M 90% Market cache reports total debt of $530.9M.

Park-Ohio Holdings Corp. Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for Park-Ohio Holdings Corp..

Park-Ohio Holdings Corp. Ownership

HolderNameConfidenceEvidence
PKOH-OWNER-GAMCO-INVESTORS-INC-ET-AL GAMCO INVESTORS, INC. ET AL 90% 13F overlay lists GAMCO INVESTORS, INC. ET AL as top holder; 99 tracked holders.

Park-Ohio Holdings Corp. Extended Supply Chain Network

TickerNameChain IndexHopsRelationship Types
ATS ATS Corporation 100.00 2
SYPR Sypris Solutions, Inc. 100.00 2
WWD Woodward, Inc. 100.00 2
SIDU Sidus Space, Inc. 100.00 2
GEHC GE HealthCare Technologies Inc. 100.00 2
KTOS Kratos Defense & Security Solutions, Inc. 100.00 2
ISSC Innovative Aerosystems, Inc. 100.00 2
WPRT Westport Fuel Systems Inc. 100.00 2
FJET Starfighters Space, Inc. 100.00 2
AER AerCap Holdings N.V. 100.00 2
AA Alcoa Corporation 100.00 2
BA The Boeing Company 100.00 2
BETA BETA Technologies, Inc. 100.00 2
GEV GE Vernova Inc. 100.00 2
RAIL FreightCar America, Inc. 60.75 1 ['customer']
BUS BUS 60.75 1 ['receiving']
GATX GATX Corporation 50.00 2
HWM Howmet Aerospace Inc. 50.00 2
ULCC Frontier Group Holdings, Inc. 50.00 2
KEP Korea Electric Power Corporation 50.00 2
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PKOH
Unlock PKOH Supply Chain Data
Verified relationships include:
INTTInTest CorporationSupplier85%
GEGE AerospaceSupplier72%
AEROSPACE-AND-DEFENSEAEROSPACE-AND-DEFENSECustomer90%
AGRICULTURAL-EQUIPMENTAGRICULTURAL-EQUIPMENTCustomer90%
+31 more relationships locked
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