Contact Sales, Service, and Support

Best IT and Communications – Price & Services
24-Hours, 365-Days – Remote & On-Site Service
1-Hour Response: Monday–Friday, 7 am–7 pm ET

Contact CS³

We respond fast — and we make it easy to reach the right team.

1‑Hour Response (Mon–Fri, 7am–7pm ET) 24/7/365 Remote & On‑Site Service Nationwide Coverage

Direct to Founder & CEO

Fred Rosario

Phone: 203‑528‑8771
Email: fr@cs3us.com
Website: www.cs3us.com
LinkedIn: linkedin.com/in/fr-cs3

Strategic Advisor

Fernando Cerdeña

fc@cs3us.com

Sales Team

Pricing, quotes, and enterprise solutions.

sales@cs3us.com

Service Desk

24/7/365 remote & on‑site support.

service@cs3us.com

Investor Relations

Partnerships and capital participation.

invest@cs3us.com

CS³ is actively securing premier office locations in Waterbury, CT, One World Trade Center in New York City, and other key markets nationwide to reflect our national presence and long‑term commitment to excellence.