Contact

Get in Touch

Scoping calls go directly to the engineers on your project - not to a business development team. Bring your requirements and we'll tell you exactly what's involved, on the first call.

GSM engineering facility
Request a Quote
We respond to all inquiries within 2 business days. Reach us directly at info@gsm808.com.
Contact Information
Email
info@gsm808.com
General inquiries and quote requests
Phone
808.555.0100
Primary line - routes to engineering
Address
Pewaukee, Wisconsin
Engineering operations and primary office
Office Hours
Monday – Friday
8:00 AM – 5:00 PM
Central Time (CT, UTC-6/-5)
Saturday
By appointment
For active project milestones only
Response Time
All quote requests: ≤2 business days
Distributor Network
GSM works with a network of qualified manufacturing and distribution partners across the US and internationally. If you're interested in partnering with Green Star Marine or need to connect with a regional contact, reach out directly.
distributors@gsm808.com
Technical Support
For products currently in service, technical support is available to qualified buyers and fleet operators. Please include your PO number, product serial number, and a description of the issue when contacting support.
support@gsm808.com