Who we are

Built by defenders.
For defenders.

SIEM & Scheme is the cybersecurity division of Pendergrass Consulting — engineers who build, deploy, and operate the same defensive stack we put in front of our clients.

The firm

A security team that lives in the infrastructure

Headquartered at 110 S. Massey St. in Selma, NC — in the heart of the Research Triangle — Pendergrass Consulting provides web development, custom applications, cybersecurity, cloud backup, and managed IT for organizations across North Carolina and nationwide.

SIEM & Scheme exists to bring that deep infrastructure and security expertise to organizations that need dedicated blue-team capabilities — without building an in-house SOC from scratch.

  • 20+ years across mixed Linux, Windows, and network infrastructure
  • Engineering-led security — we defend the environments we run
  • The same tools we deploy for clients, operated daily in production
infrastructure we run
SIEM · Security Onion 2.4 · Elastic · Wazuh
IDS · Suricata · Zeek · YARA · Strelka
EDR · CrowdStrike Falcon · Elastic Agent
NET · F5 BIG-IP · Cisco ASA · Palo Alto
OS · Rocky · Debian · Windows Server
✓ operated in production, every day

Frameworks & standards we work to

NIST 800-53 NIST 800-61 MITRE ATT&CK HIPAA PCI-DSS SOC 2 CIS Benchmarks
Technology stack

The tools we deploy and operate

🧭

SIEM Platforms

Security Onion 2.4, Elastic SIEM, Splunk, Wazuh, Grafana dashboards — full lifecycle from architecture through ongoing operations and tuning.

🛰️

Detection & IDS

Suricata IDS, YARA rules, Sigma detections, Zeek network analysis, Strelka file scanning — custom rules mapped to MITRE ATT&CK.

🖥️

Endpoint Security

CrowdStrike Falcon EDR, Elastic Agent with Fleet enrollment, osquery, ClamAV — Linux, Windows, and mixed environments.

🧱

Infrastructure

F5 BIG-IP (GTM/LTM/WAF), Cisco ASA, Palo Alto PA-1410, Postfix, nginx/Apache hardening, fail2ban, Greenbone/OpenVAS.

📐

Compliance Frameworks

NIST 800-53, NIST 800-61, HIPAA, PCI-DSS, SOC 2, CIS Benchmarks — audit-ready log retention and reporting.

💽

Operating Systems

Rocky Linux 8/9/10, CentOS 7/8, Debian 11/12, RHEL, Windows Server 2016/2019/2022 — mixed environment specialists.

“This isn't theoretical cybersecurity. We build and operate Security Onion, Suricata, Zeek, and CrowdStrike Falcon ourselves — so when we deploy them for you, it's from experience, not a manual.”
SIEM & Scheme, a cybersecurity division of Pendergrass Consulting

Ready to work with us?

Explore our capabilities or create a case to start scoping your engagement.