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Phone Numbers:
Toll-Free (USA and Canada): 1 (866) 254-0714
Outside the USA: 1 (727) 939-8853
(Florida, USA)
Fax: 1 (810) 821-6940

Hours of Operation:

Sales: Monday-Friday, 9:00 AM - 6:00 PM Eastern Time

Tech Support: Monday - Friday 9:00 AM - 6:00 PM, Saturday 11AM - 1PM.

Email Addresses:
Sales Department: sales@startstop.com
Technical Support Department: techsupport@startstop.com

Company Address:
HTH Engineering, Inc.
825 Cypress Trails Drive
Tarpon Springs, FL 34688

Billing address for Remittance:
HTH Engineering, Inc.
Accounts Receivable
P.O. Box 855
Elfers, FL 34680

HTH  Engineering Facilities

Click Here to View Photos and Locations of HTH Engineering, Inc. Facilities and Warehouses.

Our Privacy Policy

BBBOnLine Reliability SealHTH Engineering, Inc. is a proud member of the Better Business Bureau of West Florida (Tampa Bay Region) and will strive to maintain the highest possible quality and customer service for you, our valued digital recording and transcription equipment customers!


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Philips Certified Partner 2021
HTH Engineering, Inc., Computer Hardware, Tarpon Springs, FL