SDVOSB government CYBERSECURITY CONTRACTOR
Maritime and government cybersecurity, built for mission risk
Social Category
SDVOSB / SDB / MBE
N55TCNK111FZ5
CAGE Code
6WY63
SeaPort-NxG
Headquarters
Atlanta, GA
For Contracting Officers & Primes
How to buy from SEMAIS
All the procurement data you need to evaluate, contact, or contract with SEMAIS — front and center. We keep our contract vehicles, NAICS codes, certifications, and points of contact easy to find so market research takes minutes, not emails. Whether you are sole-sourcing to an SDVOSB or building a teaming arrangement, the path to a task order is clear.
Identifiers
SAM.GOV
Registered & Active
UEI
N55TCNK111FZ5
CAGE
6WY63
SOCIAL CAT.
SDVOSB / SDB / MBE
Primary NAICS
541512
Contract Vehicles
SEAPORT-NXG
Prime
DLA JETS
Subcontractor
ESMA
LA County
Teaming & Contact
GENERAL
TEAMING
PHONE
CAPABILITY BRIEF
RESPONSE SLA
1 business day
Where We Deliver
Six core service areas
Cybersecurity & Engineering
IT/OT architecture design, RMF assessments, SA&A support, vulnerability management, and endpoint protection aligned to NIST and DoD 8500-series requirements.
White papers: Vulnerability Management · Government RMF
Maritime IT/OT Assurance
Technology services for vessel convergence, port infrastructure protection, and IMO/USCG security compliance — supporting fleet readiness and mission continuity.
White paper: Maritime Cyber Assurance
IT Management Services
Warfighter Alignment
Workforce Development
AI & Modernization Support
AI governance, AI-driven automation, secure cloud transformation, and modernization of data analytics strategy — without inheriting security debt.
White paper: AI & Modernization
Published Expertise
Our delivery models, published in full
MARITIME CYBER
Securing the Sea Lanes
VULNERABILITY MANAGEMENT
Shrinking the Exposure Window
The SEMAIS Vulnerability Management Model — one prioritized remediation surface from asset, scanner, and threat data.
AI & MODERNIZATION
Governing the Machine
The SEMAIS AI Assurance and Governance Model — modernizing and automating securely.
GOVERNMENT RMF
The Defensible Stack
The SEMAIS Three-Layer Assurance Model, Government Edition — RMF run as one continuously defensible capability.
TASK AREAS
How SEMAIS supports the government
Program Management
Cybersecurity Support
Enterprise Architecture & Planning
Systems & Software Engineering
System Test & Evaluation (T&E)
Independent Verification & Validation
Enterprise Network Services
Operations & Maintenance (O&M)
Administrative Support Services
CUSTOMER ALIGNMENT
Agencies where we align
PRIMARY ALIGNMENT
U.S. Navy & shipboard systems
SEMAIS holds SeaPort-NxG Prime status — the Navy’s principal multiple-award contract for engineering, technical, and programmatic support. Our work concentrates on shipboard IT/OT convergence, vessel cybersecurity, weapons systems training, and the security engineering required to keep the fleet mission-ready.
SeaPort-NxG (Prime)
Shipboard IT/OT
Vessel Cybersecurity
RMF / SA&A
Weapons Systems Training
USCG
U.S. Coast Guard
DLA
Defense Logistics Agency
DOT
DOT / MARAD
DHS
Dept. of Homeland Security
CISA · Port Security
DOD
DoD Components
LAC
LA County · ESMA
DIFFERENTIATORS
Why agencies and primes choose SEMAIS
Maritime depth that's hard to find
01
02
SDVOSB with prime-grade credentials
Senior practitioners, not pyramids
03
04
Twelve NAICS, six service lines, one team
Founder-Led Engagement
Leadership
DH
Dewayne Hart
FOUNDER & CEO
CISSP
CGRC
CEHv8
CDNA
ITILv3
Published Author
BOOKS ON CYBER STRATEGY
The Cybersecurity Mindset — equips cyber defenders and workforces to anticipate threats, strengthen decision-making, and apply operational resilience.
Cybersecurity Leadership: How to Develop a Successful Mentality and Win — helps executives align cybersecurity programs with business objectives.
Industry Voice
FORBES COUNCIL · GLOBAL SPEAKER
Former Forbes Technology Council contributor on AI, cybersecurity, and protection strategy. Featured talks include “AI and Modern Warfare,” “Cybersecurity Leadership Starts Long Before an Attack,” and “Cracking the Code: AI and Cybersecurity.”
FROM OUR INSIGHTS
Forbes-published. White papers ready for your team.
PROOF OF PERFORMANCE
Past performance
Department of Defense & Government Civilian
Naval Sea Systems Command (NAVSEA)
SUBCONTRACT
FFP
CSEPP Database Security Authorization & RMF Lifecycle
Defense Logistics Agency (DLA)
SUBCONTRACT
DLA JETS · FFP
Software Assurance & RMF/ATO Package Development
U.S. Army · Defense Forensic Science Center
SUBCONTRACT
FFP
DFSC IT Support & DIACAP Compliance
Veterans Administration (VA)
SUBCONTRACT
VA T4NG · FFP
Continuous Readiness and Information Security Program
Food and Drug Administration (FDA)
SUBCONTRACT
O&M Support
Vulnerability Management & CDM Continuous Risk Scoring
PricewaterhouseCoopers (government clients)
SUBCONTRACT
Advisory
Enterprise Security Policy & Governance Maturation
Helped government agencies establish a foundation for maturing their information security posture through enterprise policies. Three-phase delivery — current state assessment, future state policy development, and governance process development — with a maintained PMO function, KPIs, and implementation plans.
State & Local Government
LA County · Information Systems Division (ISD)
SUBCONTRACT
ESMA
Tenable Vulnerability Governance for 100 County Departments
Designed a Tenable.io governance program evaluating 5.5M application vulnerabilities. Built a Tenable Lumin dashboard for 50 technology teams and executive management, and onboarded 100 departments and 100K assets over a 3-month integration cycle across agent-based and network-based scanning.
PROCUREMENT
NAICS codes & credentials
541512
Computer Systems Design
Primary
541330
541511
541513
541519
541611
541690
561311
561320
611420
611430
611691
Company Registration
LEGAL NAME
Secure Managed Instructional Systems, LLC
UEI / CAGE
N55TCNK111FZ5 / 6WY63
SOCIO-ECONOMIC
SDVOSB · SDB · MBE
Established
2014
Headquarters
800 Battery Ave SE, Suite 300
Point of Contact
Dewayne Hart
Team Credentials
- CISSP
Certified Information Systems Security Professional
- CGRC
Governance, Risk & Compliance
- CEHv8
Certified Ethical Hacker
- CDNA
Computer Network Defense Architect
- MCTS
Microsoft Certified Technology Specialist
- MTS
Master Training Specialist
- ITILv3
Foundation
- Network+
“SEMAIS is the premier choice for revolutionizing mission assurance and technological evolution. Unlock resilience today.”