Verified Nov 2026
Electronics & Software
·
Baton Rouge, Louisiana
·
Since 1982
JM Test Systems, LLC. is a metrology and test equipment company headquartered in Baton Rouge, Louisiana, founded in 1982. It employs roughly 500 to 1,000 people and serves the automotive, electronics, medical, military-defense, and industrial equipment sectors. The company offers calibration, repair, sales, rentals, and custom manufacturing of test equipment. In August 2026, it announced the acquisition of McMurray Technical Services, expanding its calibration capabilities into the Mid-Atlantic and Northeast regions.
JM Test Systems, LLC. at a glance
Revenue
$500M-1B
Est. band
Employees
500-1,000
Founded
1982
Headquarters
Baton Rouge, Louisiana
Certifications
ISO 9001
Import activity
10
Industries
Automotive
Electronics
Medical
Military & Defense
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
10
Named foreign suppliers
6
Top origins
China · Cayman Islands · The Bahamas · Mexico
Shared foreign counterparties do not establish that these companies buy from JM Test Systems, LLC..
What this tells a buyer
The most recent development reported is the acquisition of McMurray Technical Services, announced on 13 August 2026, which the company described as expanding its calibration coverage across the Mid-Atlantic and Northeast.
The company is ISO 9001 certified and, according to its public description, holds ISO/IEC 17025 accreditation for its calibration and repair services, with NIST-traceable calibration offered across its product range.
JM Test Systems is privately held, with an estimated annual revenue band of $500 million to $1 billion, and it reports operating 10 laboratories nationwide.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
44 years in operation (founded 1982).
Holds ISO 9001 certification(s) per public sources.
Overview
JM Test Systems, LLC. is a metrology and test equipment company headquartered in Baton Rouge, Louisiana, founded in 1982. It employs roughly 500 to 1,000 people and serves the automotive, electronics, medical, military-defense, and industrial equipment sectors. The company offers calibration, repair, sales, rentals, and custom manufacturing of test equipment. In August 2026, it announced the acquisition of McMurray Technical Services, expanding its calibration capabilities into the Mid-Atlantic and Northeast regions.
At a glance
Attribute | Detail |
|---|---|
Founded | 1982 |
Headquarters | Baton Rouge, Louisiana |
Employees | 500-1,000 |
Revenue | $500M-1B (estimated) |
Primary capability | Electronics & Software |
Certifications | ISO 9001 |
What JM Test Systems, LLC. makes
The company is ISO 9001 certified and, according to its public description, holds ISO/IEC 17025 accreditation for its calibration and repair services, with NIST-traceable calibration offered across its product range.
Products and capabilities described on the company's own site include Rubber, Pump (source: jmtest.com).
Certifications
JM Test Systems, LLC. is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — jmtest.com
Trade and customs footprint
The most recent development reported is the acquisition of McMurray Technical Services, announced on 13 August 2026, which the company described as expanding its calibration coverage across the Mid-Atlantic and Northeast. US customs bill-of-lading records list 10 inbound shipments across 6 foreign suppliers, with top origins including China · Cayman Islands · The Bahamas · Mexico.
Latest developments
2026-08-13 — JM Test Systems Acquires McMurray Technical Services, Expanding Calibration Capabilities Across the Mid-Atlantic and Northeast • JM Test Systems (jmtest.com)
2026-08-05 — We're proud to announce that JM Test Canada has been selected as Fotric's exclusive Service Partner in Canada! | JM Test Systems (linkedin.com)
2026-08-03 — Announcement! JM Test is the 2026 AEMC Instruments Voltage Spike Award for Fastest Year-Over-Year Growth recipient! ⚡🏆 | JM Test Systems, LLC. (linkedin.com)
2026-07-31 — 🚧 Big things are happening at JM Test Canada! | JM Test Systems, LLC. (linkedin.com)
2026-07-21 — PRESS RELEASE - JM Test Systems Acquires Alltite, Expanding Calibration Capabilities Across the Central United States • JM Test Systems (jmtest.com)
2026-02-12 — 📢 Big Expansion for Electrical Safety Testing 📢 | JM Test Systems, LLC. (linkedin.com)
Facilities
JM Test Systems, LLC. is headquartered in Baton Rouge, Louisiana. Public sources also reference these locations:
McMurray, Pennsylvania — jmtest.com
Wichita, Kansas — jmtest.com
Company details
JM Test Systems is privately held, with an estimated annual revenue band of $500 million to $1 billion, and it reports operating 10 laboratories nationwide. JM Test Systems, LLC. was founded in 1982, has an estimated 500-1,000 employees, and is headquartered in Baton Rouge, Louisiana. On the LightSource stability read it is rated "Established & active": 44 years in operation (founded 1982). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does JM Test Systems, LLC. make?
JM Test Systems, LLC. is a metrology and test equipment company headquartered in Baton Rouge, Louisiana, founded in 1982. It employs roughly 500 to 1,000 people and serves the automotive, electronics, medical, military-defense, and industrial equipment sectors. The company offers calibration, repair, sales, rentals, and custom manufacturing of test equipment. In August 2026, it announced the acquisition of McMurray Technical Services, expanding its calibration capabilities into the Mid-Atlantic and Northeast regions.
Where is JM Test Systems, LLC. headquartered?
JM Test Systems, LLC. is headquartered in Baton Rouge, Louisiana (7323 Tom Dr, Baton Rouge, Louisiana, 70806).
When was JM Test Systems, LLC. founded?
JM Test Systems, LLC. was founded in 1982.
How big is JM Test Systems, LLC.?
JM Test Systems, LLC. has an estimated 500-1,000 employees, with revenue in the $500M-1B range (estimated).
What certifications does JM Test Systems, LLC. hold?
JM Test Systems, LLC. lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does JM Test Systems, LLC. import from overseas suppliers?
US customs bill-of-lading records show 10 inbound shipments for JM Test Systems, LLC., with top origins including China · Cayman Islands · The Bahamas · Mexico.
Related suppliers
Explore other suppliers in the LightSource directory:
Last verified Nov 2026. Is this your company? Request a correction.
Location & contact
Evaluating suppliers like these?
This profile comes from a public-data sample of around 1,000 companies. Book a demo to see the full LightSource marketplace and supplier discovery platform — 1M+ credible suppliers, with AI-run sourcing events.