Verified Nov 2026
Castings & Forgings
·
Houston, Texas
·
Since 1979
American Block is a family-owned manufacturer headquartered in Houston, Texas, founded in 1979 by mechanical engineer Rajani Shah. The company has an estimated 100-200 employees and an estimated annual revenue band of $100-250 million. It designs and produces castings, forgings, and equipment for oilfield and marine applications, serving the automotive, plumbing-hardware, and industrial-equipment sectors. In February 2026 it added API 6A spool adapters to its Flowline product line.
American Block at a glance
Revenue
$100-250M
Est. band
Employees
100-200
Founded
1979
Headquarters
Houston, Texas
Certifications
ISO 9001
Import activity
1172
Industries
Automotive
Plumbing & Hardware
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
1172
Named foreign suppliers
50
Top origins
India · China · Oman · South Korea
Shared foreign counterparties do not establish that these companies buy from American Block.
What this tells a buyer
No customs data is available for the company, and its most recent public development was the May 2026 start of Flowline product sales in the Bakken through Southwest Oilfield Products Inc.'s Williston facility.
The company is ISO 9001 certified and its product range includes machining, sheaves, traveling blocks, mud pumps, and API 6A spool adapters.
The company is privately held and family-owned, with an estimated headcount of 129 employees.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
47 years in operation (founded 1979).
Holds ISO 9001 certification(s) per public sources.
Overview
American Block is a family-owned manufacturer headquartered in Houston, Texas, founded in 1979 by mechanical engineer Rajani Shah. The company has an estimated 100-200 employees and an estimated annual revenue band of $100-250 million. It designs and produces castings, forgings, and equipment for oilfield and marine applications, serving the automotive, plumbing-hardware, and industrial-equipment sectors. In February 2026 it added API 6A spool adapters to its Flowline product line.
At a glance
Attribute | Detail |
|---|---|
Founded | 1979 |
Headquarters | Houston, Texas |
Employees | 100-200 |
Revenue | $100-250M (estimated) |
Primary capability | Castings & Forgings |
Certifications | ISO 9001 |
What American Block makes
The company is ISO 9001 certified and its product range includes machining, sheaves, traveling blocks, mud pumps, and API 6A spool adapters.
Products and capabilities described on the company's own site include Machining (source: americanblock.com).
Certifications
American Block 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 data is available for the company, and its most recent public development was the May 2026 start of Flowline product sales in the Bakken through Southwest Oilfield Products Inc.'s Williston facility. US customs bill-of-lading records list 1172 inbound shipments across 50 foreign suppliers, with top origins including India · China · Oman · South Korea.
Latest developments
2026-09-01 — Staged and ready to ship. | American Block (linkedin.com)
2026-08-18 — A new source for top drive replacement components is here. | American Block (linkedin.com)
2026-05-07 — We are proud to offer American Block Flowline products in the Bakken through Southwest Oilfield Products Inc.'s Williston Facility. Thank you to all who joined our joint open house this week. | American Block (linkedin.com)
2026-02-26 — American Block is proud to now offer API 6A spool adapters through our Flowline division. (linkedin.com)
2026-02-13 — American Block is proud to announce an expansion to our Flowline product lineup. (linkedin.com)
2026-01-22 — Two 600 HP Triplex pumps refurbished and headed to a valued customer. | American Block (linkedin.com)
Company details
The company is privately held and family-owned, with an estimated headcount of 129 employees. American Block was founded in 1979, has an estimated 100-200 employees, and is headquartered in Houston, Texas. On the LightSource stability read it is rated "Established & active": 47 years in operation (founded 1979). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does American Block make?
American Block is a family-owned manufacturer headquartered in Houston, Texas, founded in 1979 by mechanical engineer Rajani Shah. The company has an estimated 100-200 employees and an estimated annual revenue band of $100-250 million. It designs and produces castings, forgings, and equipment for oilfield and marine applications, serving the automotive, plumbing-hardware, and industrial-equipment sectors. In February 2026 it added API 6A spool adapters to its Flowline product line.
Where is American Block headquartered?
American Block is headquartered in Houston, Texas (6311 Breen Dr, Houston, Texas, 77086).
When was American Block founded?
American Block was founded in 1979.
How big is American Block?
American Block has an estimated 100-200 employees, with revenue in the $100-250M range (estimated).
What certifications does American Block hold?
American Block lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does American Block import from overseas suppliers?
US customs bill-of-lading records show 1172 inbound shipments for American Block, with top origins including India · China · Oman · South Korea.
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Last verified Nov 2026. Is this your company? Request a correction.
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