WINSTON & MILLER

Information Assurance & Cyber Defense for the Mission

We get federal systems to ATO and keep them there.

Winston & Miller delivers RMF Assessment & Authorization, ISSO and ISSM support, and NIST SP 800-171 and CMMC readiness for federal programs. A U.S. Army veteran with 30 years in DoD information assurance leads every engagement.

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30 yearsDoD information assurance
ClearedLeadership holds an active security clearance
5 credentialsCISM · CASP+ · GSLC · Security+ · PMP
541512Primary NAICS

Six services, one outcome: an authorized, defensible system

Every engagement ends the same way: a system your authorizing official can sign for, and evidence that holds up at the next assessment.

RMF Assessment & Authorization

Categorization through authorization: SSP, SAR, POA&M and the full ATO package, built and managed in eMASS.

RMF services

ISSO and ISSM support

DoD 8140-qualified security officers who run the day-to-day security posture of your system and answer to the mission.

ISSO/ISSM services

NIST SP 800-171 and CMMC readiness

Gap assessment, System Security Plan, POA&M and SPRS score for contractors that handle Controlled Unclassified Information.

CMMC readiness

Continuous monitoring

ACAS/Nessus analysis, STIG review and POA&M burn-down that keep an ATO current between assessments.

Continuous monitoring

Policy and documentation

Cybersecurity policies, procedures and plans written to the control, mapped to NIST SP 800-53, and ready for assessor review.

Policy services

Role-based training

Security awareness and role-based training for system users, administrators and privileged staff.

Training services

Why programs choose Winston & Miller

Senior judgment on every task, and a structure built for federal set-asides.

Senior-led, every engagement

The founder bills on the work. You get 30 years of DoD information assurance judgment, not a junior team behind a senior name.

Two small-business set-aside paths

SDVOSB and WOSB certifications are in process with SBA, so one award can count toward both agency goals.

DoD 8140 aligned

CISM and CASP+ meet senior management and technical baselines; Security+ covers technical support roles; PMP keeps the schedule honest.

Cleared and close to the mission

Cleared leadership based minutes from Joint Base Andrews, Suitland, Camp Springs and Washington Navy Yard.

Proven inside the Navy's enterprise

The founder's record across Naval aviation, surface warfare and ordnance programs.

  1. 8+ years as Senior ISSO and Navy Qualified Validator for a Naval aviation research, development, test and evaluation enterprise: RMF A&A, eMASS administration, ACAS continuous monitoring and POA&M management across classified and unclassified networks, leading a team of 12.
  2. RMF subject matter expert supporting Authority to Operate processing for a Naval surface warfare center.
  3. IT/IA site and team lead for a Naval ordnance technical division, leading 14 IA and IT professionals through full Assessment & Authorization cycles.

Latest insights

Practitioner guidance on RMF, ATO, CMMC and the ISSO role. See all insights.

Contracting data

Primary NAICS 541512. Product and service codes D310, D307, D399, R408 and R425. We accept the Government Purchase Card and EFT. UEI and CAGE registration is in process in SAM.gov.

541512541519541511541690541611611420

Frequently asked questions

What does Winston & Miller do?
Winston & Miller helps federal programs earn and keep their Authority to Operate. The firm delivers RMF Assessment & Authorization, ATO package development in eMASS, ISSO and ISSM support, NIST SP 800-171 and CMMC readiness, and continuous monitoring.
Who leads Winston & Miller?
Founder and CEO Jessica D. Miller, a U.S. Army veteran with 30 years in DoD information assurance, leads the firm and works on every engagement. She holds an active security clearance and the CISM, CASP+, GSLC, Security+ and PMP credentials.
Is Winston & Miller a small business?
Yes. Winston & Miller is a veteran-led, woman-owned small business. Its SDVOSB and WOSB certifications are in process with the U.S. Small Business Administration.
What NAICS codes does Winston & Miller use?
The primary NAICS code is 541512, Computer Systems Design Services. Secondary codes are 541519, 541511, 541690, 541611 and 611420.
Where does Winston & Miller work?
Winston & Miller is based in Washington, DC and Prince George's County, Maryland, and supports programs across the National Capital Region, including Joint Base Andrews, Suitland, Camp Springs, Washington Navy Yard and Patuxent River.
How can primes team with Winston & Miller?
Email jessica@winstonandmiller.com or call (240) 577-8855 to request a capability statement. Winston & Miller supports subcontracts, teaming agreements and direct awards.