SSE Inc.

SSE Inc. is a St. Louis outsourced IT and cybersecurity provider serving clients across the United States, with 24/7 support and proactive monitoring. It is CMMC Level 2 certified and a CMMC Registered Provider Organization, with more than 15 years as a DoD contractor, and it has managed networks to NIST 800-171 standards since those requirements began. Services include managed IT, managed Microsoft 365 cloud services, co-managed IT, cybersecurity, gap assessments and remediation, and CMMC and NIST 800-171 compliance. Its work centers on defense contractors, aerospace and small manufacturers. Founded by Susan S. Elliott as Systems Service Enterprises Inc., it also offers CMMC C3PAO assessment, readiness assessment surveys and communication technology services. Rated 4.4 from 10 Google reviews, 6 of them four stars and 4 of them five stars.