From their "Contact Us" page
Contact HDGIANTS
Technical Support
For technical support, please contact Support@HDGIANTS.com Monday – Friday 8:30 a.m. – 5:00 p.m. PST or call 775.832.5692
Sales
For sales and dealer inquiries, please contact our sales department at Sales@HDGIANTS.com or call 775.832.5692
Marketing
For marketing and press inquiries, please contact our marketing department at Marketing@HDGIANTS.com or call 775.832.5692
Content
For new content inquiries, please contact our content department at Content@HDGIANTS.com or call 775.832.5692
Corporate Office:
HDGIANTS
926 Incline Way
Incline Village, NV 89451
Phone: 775.832.5692
Fax: 775.832.5693