Verified Nov 2026
Electronics & Software
·
Tulsa, Oklahoma
·
Since 1920
T.D. Williamson (TDW) is a pipeline infrastructure technology and services company headquartered in Tulsa, Oklahoma, United States. Founded in 1920, it has between 1,000 and 5,000 employees and an estimated revenue band of $500 million to $1 billion. It is privately held and serves gathering, transmission, and distribution pipeline operators in the automotive, electronics, construction, renewable-energy, and industrial-equipment sectors. TDW has more than 35 locations worldwide, and in December 2025 it integrated Pro Pipe Services to expand its pipeline solutions in Australia.
T.D. Williamson at a glance
Revenue
$500M-1B
Est. band
Employees
1,000-5,000
Founded
1920
Headquarters
Tulsa, Oklahoma
Certifications
ISO 9001
Import activity
124
Industries
Automotive
Electric Vehicles
Electronics
Construction
Renewable Energy
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
124
Named foreign suppliers
18
Top origins
India · Belgium · Taiwan · Singapore
Shared foreign counterparties do not establish that these companies buy from T.D. Williamson.
What this tells a buyer
No customs trade data is available in the record; TDW expanded its Australian presence in December 2025 through the integration of Pro Pipe Services, as announced on its website.
TDW offers patented pipeline products and services in intervention and isolation, integrated pigging, integrity assessment, and repair, and holds ISO 9001 certification.
TDW has been operating for more than 100 years and reported a partnership with ECS in October 2026 to support its return to Venezuela.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
106 years in operation (founded 1920).
Holds ISO 9001 certification(s) per public sources.
Overview
T.D. Williamson (TDW) is a pipeline infrastructure technology and services company headquartered in Tulsa, Oklahoma, United States. Founded in 1920, it has between 1,000 and 5,000 employees and an estimated revenue band of $500 million to $1 billion. It is privately held and serves gathering, transmission, and distribution pipeline operators in the automotive, electronics, construction, renewable-energy, and industrial-equipment sectors. TDW has more than 35 locations worldwide, and in December 2025 it integrated Pro Pipe Services to expand its pipeline solutions in Australia.
At a glance
Attribute | Detail |
|---|---|
Founded | 1920 |
Headquarters | Tulsa, Oklahoma |
Employees | 1,000-5,000 |
Revenue | $500M-1B (estimated) |
Primary capability | Electronics & Software |
Certifications | ISO 9001 |
What T.D. Williamson makes
TDW offers patented pipeline products and services in intervention and isolation, integrated pigging, integrity assessment, and repair, and holds ISO 9001 certification.
Products and capabilities described on the company's own site include Sensor, Welding, Emissions, Steel, Transmission (source: tdwilliamson.com).
Certifications
T.D. Williamson is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — linkedin.com
Trade and customs footprint
No customs trade data is available in the record; TDW expanded its Australian presence in December 2025 through the integration of Pro Pipe Services, as announced on its website. US customs bill-of-lading records list 124 inbound shipments across 18 foreign suppliers, with top origins including India · Belgium · Taiwan · Singapore.
Latest developments
2026-10-19 — ECS Announces Strategic Partnership with T.D. Williamson, Supporting TDW’s Return to Venezuela | ECS (ecsupply.com)
2026-08-05 — TDW announces 14-Inch MDS™ Flex capability powered by Ultra Res MFL technology (tdwilliamson.com)
2026-03-04 — T.D. Williamson tech demonstration day a resounding success - The Australian Pipeliner (pipeliner.com.au)
2025-12-15 — T.D. Williamson Expands Commitment to Australia, Integrates Pro Pipe Services to Enhance Pipeline Solutions (tdwilliamson.com)
2025-12-12 — News- TDW Acquisition - Tulsa Inspection Resources (tirusa.com)
2025-06-10 — T.D. Williamson Announces Strategic Investment from Apollo Funds (tdwilliamson.com)
Facilities
T.D. Williamson is headquartered in Tulsa, Oklahoma. Public sources also reference these locations:
Houston, Texas — ecsupply.com
Company details
TDW has been operating for more than 100 years and reported a partnership with ECS in October 2026 to support its return to Venezuela. T.D. Williamson was founded in 1920, has an estimated 1,000-5,000 employees, and is headquartered in Tulsa, Oklahoma. On the LightSource stability read it is rated "Established & active": 106 years in operation (founded 1920). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does T.D. Williamson make?
T.D. Williamson (TDW) is a pipeline infrastructure technology and services company headquartered in Tulsa, Oklahoma, United States. Founded in 1920, it has between 1,000 and 5,000 employees and an estimated revenue band of $500 million to $1 billion. It is privately held and serves gathering, transmission, and distribution pipeline operators in the automotive, electronics, construction, renewable-energy, and industrial-equipment sectors. TDW has more than 35 locations worldwide, and in December 2025 it integrated Pro Pipe Services to expand its pipeline solutions in Australia.
Where is T.D. Williamson headquartered?
T.D. Williamson is headquartered in Tulsa, Oklahoma (6120 South Yale Avenue, Tulsa, Oklahoma, 74136).
When was T.D. Williamson founded?
T.D. Williamson was founded in 1920.
How big is T.D. Williamson?
T.D. Williamson has an estimated 1,000-5,000 employees, with revenue in the $500M-1B range (estimated).
What certifications does T.D. Williamson hold?
T.D. Williamson lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does T.D. Williamson import from overseas suppliers?
US customs bill-of-lading records show 124 inbound shipments for T.D. Williamson, with top origins including India · Belgium · Taiwan · Singapore.
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Last verified Nov 2026. Is this your company? Request a correction.
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