Cyber Engineering Services (CyberESI)

Cyber Engineering Services, operating as CyberESI, provides Managed Detection and Response (MDR) for midsize enterprises, offering remote monitoring and management of mission-critical networks alongside incident response, digital forensics, and cybersecurity professional services. The company’s core technical differentiator is a purpose-built protection platform with patented Command and Control (C2) node detection and monitoring, aimed at identifying the infrastructure attackers use to control compromised systems rather than relying solely on endpoint or signature-based detection.

Founded in 2010 by Joseph Drissel and headquartered in Baltimore, Maryland, CyberESI was built by a team with backgrounds serving the U.S. government and NIST as well as commercial clients, with team members averaging roughly 15 years of information security experience. The company has remained a small, privately held operation — approximately 20 employees and roughly $1.8 million in reported annual revenue as of 2025 — with no disclosed institutional venture funding.

CyberESI competes in the MDR market against far larger, venture-backed platforms (Arctic Wolf, Expel, Red Canary) as well as major MSSPs. Its patented C2 detection technology is a genuine, verifiable technical asset, but the company’s small scale and lack of publicly disclosed named enterprise customers or independent efficacy benchmarks make it difficult to assess how its detection performance compares to better-resourced competitors.