5151 Mitchelldale St A10, Houston, TX 77092. 346 770 3170, answered 24/71 Agent Online. Client portal
Gold StandardANALYTICS

Contact the laboratory

One team answers everything: quotes, methods, an order already in progress, or a certificate you are trying to verify. Call or email us any time.

Call the laboratory

Quickest for an order in progress or a shipping question.

346 770 3170Answered 24/7 by Ava, our AI phone agent1 Agent Online

Email us

One inbox for quotes, methods, orders and certificates.

team@goldstandardanalytics.comAnswered within one business day

Verify a certificate

You do not need us to check a COA. Enter the accession number.

Verify by accessionPublic, no login

Email or call us

The same team answers both. If it is about an order or a certificate, put the order or accession number at the top so we can pull it up straight away.

Addresses

Laboratory and mailing address
5151 Mitchelldale St A10, Houston, TX 77092
Send every sample here, on the prepaid label we issue.
Legal and billing address
1309 Coffeen Ave, Sheridan, WY 82801
Gold Standard Analytics LLC, a Texas LLC. Legal notices and invoicing only; no samples.
Office hours
Monday to Friday, 10 AM–4 PM CST
The phone is answered 24/7. Tours by appointment; receiving accepts carrier deliveries during office hours.
No walk-in sample drop-off

Chain of custody starts with a carrier scan, so every sample must arrive on a label we issue. We make no exceptions. Tours are by appointment.

When you will hear back

Response times by request type
RequestWhere it goesReply
Order already at the laboratoryIntake and custodySame business day
Quote or a new panelClient servicesOne business day
Method, column or calibrationChief ScientistOne to two business days
Certificate dispute or retestQuality leadOne business day
Equipment marketplaceMarketplace operationsTwo business days
Press and partnershipsOffice of the CEOFive business days

Questions we are asked most

If your question is not here, email or call us. The same people answer both.

Within one business day for an email, and the same day for a question about an order already at the laboratory. We answer from one inbox, so you will not be handed between departments.

No, and there are no exceptions. Chain of custody begins with the carrier scan on a prepaid label we issue at submission, and a hand-delivered package has no scan to start it. Order first and the label is emailed when payment lands.

Yes, by appointment. Tours run during business hours for qualifying accounts and cover receiving, the instrument room, the microbiology suite and retained-sample storage. Email us and we will offer times.

Samples go to the Houston laboratory at 5151 Mitchelldale St A10, and the prepaid label we issue is already addressed there. The Sheridan, Wyoming address is for legal notices and billing only; nothing analytical should be sent to it.

Enter the accession number on the verification page. If it does not resolve in our public database, it is not one of ours. You do not need an account, and you do not need to contact us first.

No. We hold no DEA registration, so we cannot receive Schedule I to V material. Send nothing scheduled; a package that arrives containing it is refused and reported.

The intake builder prices a panel live and the quote matches checkout exactly, so most buyers never need one. For a panel that is not in the catalogue, or for volume above ten samples, email us and we will write one.

You can ask any question about method, column, gradient, calibration range or reference standard lot, and the Chief Scientist answers it. Analysts work under blind codes and are published by role, so no individual result can be pressured through a person.

More detail lives on About the laboratory, refunds and certificate verification.