In-Lab & Onsite Calibration Services in St. Louis, MO
With over 35 years of experience, our technicians have provided precise calibration, instrument repair, and metrology database management to a diverse range of industries across the St. Louis metro area.
Located in Gaithersburg, MD, our calibration laboratory—accredited to ISO/IEC 17025:2017, ANSI Z540-1, and Z540.3 standards—adheres to strict quality protocols. We perform all calibrations and repairs in line with manufacturer specifications to ensure your measurement tools remain reliable, repeatable, and audit-ready. Each calibration is accompanied by a certificate that confirms compliance with the rigorous standards set by the National Institute of Standards and Technology (NIST).
Serving St. Louis, MO
St. Louis is an independent city in Missouri, set near the confluence of the Mississippi and Missouri rivers, with roughly 301,600 residents in the city proper and a metropolitan area of more than 2.8 million that reaches across the river into Illinois. Four interstates — I-70, I-55, I-64 and I-44 — converge on the city, ringed by the I-270 outer belt and the I-170 Inner Belt, which crosses I-70 beside St. Louis Lambert International Airport. That airport is the home of Boeing Defense, Space & Security, the Boeing division headquartered in St. Louis that builds military aircraft, rotorcraft, missiles and space systems; the F-15EX Eagle II is manufactured by the St. Louis division, and the T-7A Red Hawk made its first flight out of Lambert in June 2023. The National Geospatial-Intelligence Agency runs NGA Campus West here, and Scott Air Force Base — headquarters of Air Mobility Command and U.S. Transportation Command, with about 13,000 personnel — lies 17 miles east-southeast of downtown. The wider industrial base includes Fortune 500 headquarters for Emerson Electric, Olin, Ameren, Centene and Post Holdings, plus Anheuser-Busch, Energizer, Belden and Bunge, while Washington University in St. Louis, Saint Louis University and the Cortex Innovation Community in the Central West End anchor the region’s research and medical-device work. Tra-Cal provides ANAB-accredited ISO/IEC 17025:2017 calibration of test, measurement, and laboratory equipment to organizations working in this environment.
Our laboratory is physically located at 8577 Atlas Drive in Gaithersburg, Maryland; we do not operate an office in St. Louis. Because eastern Missouri sits well outside our Mid-Atlantic pickup and delivery radius, we serve St. Louis and the surrounding metro through two intake paths: prepaid ship-in calibration with a typical five-business-day turnaround, and scheduled onsite calibration appointments at your facility using our mobile laboratories, which carry more than 100 instruments per van. Each calibration is performed against documented procedures, traced through NIST, and accompanied by an audit-ready certificate that supports AS9100, ISO 13485, ISO 9001, and FDA 21 CFR Part 820 quality systems.
Why Quality Teams in the St. Louis Region Choose Tra-Cal
5-Day Turnaround
Prepaid Ship-In and Return Shipping
Onsite Calibration at Your Facility
Comprehensive Asset Database Management
Dedicated Account Managers
Veteran-Owned & Operated
Unwavering Quality Guarantee
Calibration Services Available to St. Louis, MO Operations
Additional Calibration Options
How Tra-Cal Serves St. Louis, MO
In-Lab Calibration:
Send your equipment to our ANAB-accredited ISO/IEC 17025:2017 laboratory with prepaid inbound and return shipping. Calibration is performed in a climate-controlled environment against documented procedures, with traceability through NIST. Standard turnaround is approximately five business days from receipt, and asset records are retained with automated due-date notifications.
Onsite Calibration:
Our metrologists travel to St. Louis-area facilities for fixed assets, large inventories, and instruments that should not be moved. Calibration is performed in a controlled environment at your site on a scheduled appointment, with the same accreditation, NIST traceability, and documentation as in-lab service.
Frequently Asked Questions
-
Yes. Eastern Missouri sits well outside our Mid-Atlantic pickup and delivery radius, so we support St. Louis and the surrounding metro through two intake paths: prepaid ship-in service with a typical five-business-day turnaround, and scheduled onsite calibration appointments at your facility. The same ISO/IEC 17025:2017 accreditation, NIST-traceable standards, and certificate format apply regardless of intake method.
-
Yes. Tra-Cal maintains ISO/IEC 17025:2017 accreditation. ANSI/NCSL Z540-1 and Z540.3 conformance is also available. The current scope of accreditation is published on the Tra-Cal Certificate of Accreditation page.
-
Standard turnaround for in-lab calibration is approximately five business days from receipt of the instrument. Expedited turnaround is available on request and depends on instrument type, parameter scope, and current lab volume.
-
Yes. Each calibration certificate documents traceability through NIST, includes as-found and as-left data where applicable, lists the standards used, the calibration procedure reference, environmental conditions, and the technician. Certificates are designed to support AS9100, ISO 13485, ISO 9001, and FDA 21 CFR Part 820 quality system audits.
-
Tra-Cal supports military aircraft and missile programs and their supply base around Boeing Defense, Space & Security at Lambert, geospatial and federal intelligence work at NGA Campus West, airlift and logistics operations tied to Scott Air Force Base, process automation and industrial controls, brewing and food production, energy and utilities, medical device and life-sciences labs at Washington University in St. Louis, Saint Louis University and the Cortex Innovation Community, and quality and engineering teams across the city, St. Louis County, and the Metro East.
-
Yes. Our mobile laboratories travel to St. Louis-area sites for fixed assets, large inventories, and instruments that should not be transported, including production and test equipment in the aerospace corridor around Lambert and process instrumentation at plants along the Mississippi. A scheduled appointment is set with your team, and calibration is performed in a controlled environment at your facility with full documentation.
-
A packaging guide is provided when you request a quote. In general, instruments should be powered down, accessories included where required for calibration, and packed with appropriate cushioning. A prepaid shipping label is available for qualifying customers.
-
Yes. Tra-Cal offers metrology database management with automated due-date notifications, historical certificate retrieval, and asset-level records suitable for audit support.
Visit Our Gaithersburg Facility or Find Us Near You
Tra-Cal
Lab
8577 Atlas Drive
Gaithersburg, MD 20877
Servicing Local St. Louis Zip Codes:
63101, 63102, 63103, 63110, and 63147 in the city, plus nearby St. Louis County ZIP codes including 63134 (Berkeley), 63042 (Hazelwood), 63044 (Bridgeton), 63146 (Maryland Heights), and 63017 (Chesterfield).
Contact Tra-Cal for Calibration Support Today
Tell us your instrument list, required turnaround, and accreditation level. Most quote requests are returned within one business day. Tra-Cal supports quality, engineering, and operations teams across downtown St. Louis, the Central West End, Berkeley, Hazelwood, Earth City, Maryland Heights, Chesterfield, and communities throughout St. Louis County and the Metro East with ANAB-accredited ISO/IEC 17025:2017, NIST-traceable calibration. Call 301-527-9200 or request a free quote online.