Verified Nov 2026
Electronics & Software
·
Lake Forest, California
·
Since 1958
Bal Seal Engineering designs and manufactures custom-engineered sealing, connecting, conducting, and EMI/RFI shielding components, including its proprietary Bal Spring canted coil spring technology. The company is headquartered in Lake Forest, California, was founded in 1958, and employs between 200 and 500 people, with estimated annual revenue of $10 to 50 million. It is privately held and serves the automotive, electric vehicle, electronics, medical, military-defense, and industrial equipment industries. In 2026 it reported expanding its medical seal materials portfolio, with its SP400HT medical seal material validated for biosecurity.
Bal Seal Engineering at a glance
Revenue
$10-50M
Est. band
Employees
200-500
Founded
1958
Headquarters
Lake Forest, California
Certifications
AS9100 · ISO 9001
Import activity
9
Industries
Automotive
Electric Vehicles
Electronics
Medical
Military & Defense
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
9
Named foreign suppliers
5
Top origins
China · Singapore · Germany · Netherlands
Shared foreign counterparties do not establish that these companies buy from Bal Seal Engineering.
What this tells a buyer
The company has no customs trade data in the available record, and its most recent reported development is the validation of its SP400HT medical seal material for biosecurity in August 2026.
Its product lines include spring-energized seals, canted coil springs, and precision electrical contacts, and it holds AS9100 and ISO 9001 certifications.
Bal Seal Engineering is a private company with an estimated revenue band of $10 to 50 million, and its reported customers are not identified in the record.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
68 years in operation (founded 1958).
Holds AS9100, ISO 9001 certification(s) per public sources.
Overview
Bal Seal Engineering designs and manufactures custom-engineered sealing, connecting, conducting, and EMI/RFI shielding components, including its proprietary Bal Spring canted coil spring technology. The company is headquartered in Lake Forest, California, was founded in 1958, and employs between 200 and 500 people, with estimated annual revenue of $10 to 50 million. It is privately held and serves the automotive, electric vehicle, electronics, medical, military-defense, and industrial equipment industries. In 2026 it reported expanding its medical seal materials portfolio, with its SP400HT medical seal material validated for biosecurity.
At a glance
Attribute | Detail |
|---|---|
Founded | 1958 |
Headquarters | Lake Forest, California |
Employees | 200-500 |
Revenue | $10-50M (estimated) |
Primary capability | Electronics & Software |
Certifications | AS9100 · ISO 9001 |
What Bal Seal Engineering makes
Its product lines include spring-energized seals, canted coil springs, and precision electrical contacts, and it holds AS9100 and ISO 9001 certifications.
Products and capabilities described on the company's own site include Seal, Steering (source: balseal.com).
Certifications
Bal Seal Engineering is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
AS9100 — balseal.com
ISO 9001 — balseal.com
Trade and customs footprint
The company has no customs trade data in the available record, and its most recent reported development is the validation of its SP400HT medical seal material for biosecurity in August 2026. US customs bill-of-lading records list 9 inbound shipments across 5 foreign suppliers, with top origins including China · Singapore · Germany · Netherlands.
Latest developments
2026-10-29 — Bal Seal Engineering Expands its Medical Seal Materials Portfolio | Medical Product Outsourcing (mpo-mag.com)
2026-09-24 — How much holding force is just enough? | Bal Seal Engineering (linkedin.com)
2026-08-14 — Bal Seal validates SP400HT medical seal material biosecurity - Medical Design and Outsourcing (medicaldesignandoutsourcing.com)
2026-05-15 — Management Consulting, Market Research Company, Market Research Firms (lucintel.com)
2026-04-01 — Tonight’s Artemis II moon launch isn’t just a milestone, it’s a test of everything behind it. We’re proud to play a role, supporting SLS and Orion with cryogenic sealing and canted coil … | Bal Seal Engineering (linkedin.com)
2026-02-20 — 🤝 Bal Seal Engineering joins AIMD Workshop 2026 as Silver Sponsor! (linkedin.com)
Company details
Bal Seal Engineering is a private company with an estimated revenue band of $10 to 50 million, and its reported customers are not identified in the record. Bal Seal Engineering was founded in 1958, has an estimated 200-500 employees, and is headquartered in Lake Forest, California. On the LightSource stability read it is rated "Established & active": 68 years in operation (founded 1958). Holds AS9100, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Bal Seal Engineering make?
Bal Seal Engineering designs and manufactures custom-engineered sealing, connecting, conducting, and EMI/RFI shielding components, including its proprietary Bal Spring canted coil spring technology. The company is headquartered in Lake Forest, California, was founded in 1958, and employs between 200 and 500 people, with estimated annual revenue of $10 to 50 million. It is privately held and serves the automotive, electric vehicle, electronics, medical, military-defense, and industrial equipment industries. In 2026 it reported expanding its medical seal materials portfolio, with its SP400HT medical seal material validated for biosecurity.
Where is Bal Seal Engineering headquartered?
Bal Seal Engineering is headquartered in Lake Forest, California (19650 Pauling, Lake Forest, California, 92610).
When was Bal Seal Engineering founded?
Bal Seal Engineering was founded in 1958.
How big is Bal Seal Engineering?
Bal Seal Engineering has an estimated 200-500 employees, with revenue in the $10-50M range (estimated).
What certifications does Bal Seal Engineering hold?
Bal Seal Engineering lists AS9100 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does Bal Seal Engineering import from overseas suppliers?
US customs bill-of-lading records show 9 inbound shipments for Bal Seal Engineering, with top origins including China · Singapore · Germany · Netherlands.
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Last verified Nov 2026. Is this your company? Request a correction.
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