What Halcyon Days Consulting Llc does

Halcyon Days Consulting LLC (HDC) is a privately held, veteran-owned defense technology company founded in 2021 and headquartered at 101 Log Canoe Circle, Suite A, Stevensville, Maryland (CAGE Code 8VF78). The firm designs, deploys, and sustains tactical mission networks and custom operational software for the United States military — across Army, Navy, Air Force, Marine Corps, and special operations forces — as well as for allied and partner-nation militaries. It employs 1–10 people and positions itself as an operator-led, agile-delivery alternative to traditional beltway defense consultancies.

HDC's technical stack is organized around six integrated service lines: (1) Tactical Mission Networks — resilient communications in austere and contested environments; (2) Operational Software Development — custom mission applications built with DevSecOps practices including command-and-control dashboards and data fusion platforms; (3) Cybersecurity & Information Assurance — security architecture, Risk Management Framework (RMF) execution, and continuous monitoring; (4) Systems Integration & Interoperability Engineering — connecting disparate systems into joint and coalition mission architectures; (5) Training & Advisory Services — operator-informed planning and sustainment support; and (6) Foreign Partner Enablement — tailored solutions and knowledge-transfer programs for allied militaries. All solutions are architected as edge-native for disconnected, intermittent, and limited (DIL) tactical environments.

The business model is direct professional-services contracting with the U.S. Department of War and foreign defense agencies, executed through prime or subcontract relationships and negotiated under standard government contract vehicles. Pricing is not publicly disclosed and is quote-based. The go-to-market is relationship-driven enterprise field sales with no channel, reseller, or marketplace distribution. Revenue is not publicly reported, and no funding rounds, partnerships, M&A, or leadership hires are documented in the available material.

Name

Halcyon Days Consulting Llc

Legal name

Halcyon Days Consulting LLC

Website

https://teamhdc.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Halcyon Days Consulting is a veteran-owned defense technology firm that designs tactical mission networks, DevSecOps operational software, and cybersecurity/RMF services for the U.S. military and allied partner-nation forces, delivered through direct government contracting.

Ownership category

akta.pro rank

Product category

Defense Technology Services

NAICS

Computer Systems Design and Related Services (54151), Other Scientific and Technical Consulting Services (54169), Management Consulting Services (54161)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Management Consulting Services (8742)

akta.pro primary industry

Military Operations & Force Readiness (BPAIAHAA)

akta.pro secondary industry

Special Operations & Counterterrorism (BPAIAHAH)

Keywords

• Defense technology services
• Tactical mission networks
• Operational software development
• Cybersecurity RMF services
• Military systems integration

Headquarters

HQ city

Stevensville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Defense Technology Contracts & Consulting: Halcyon Days Consulting generates revenue through government and defense contracts providing tactical network engineering, operational software development, cybersecurity services, systems integration, and advisory services to the U.S. military and foreign partner nations. Revenue is derived from direct prime or subcontractor relationships with defense agencies.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Halcyon Days Consulting is a defense technology services company that engineers tactical mission networks and operational software for the U.S. military and allied partner nations. The firm delivers six core capabilities: tactical communication networks, custom DevSecOps-built mission software, cybersecurity and RMF information assurance, systems interoperability engineering, operational training and advisory services, and foreign partner enablement — all designed for the tactical edge in contested environments.

Product overview

Halcyon Days Consulting is a defense technology services company that offers a portfolio of six integrated service offerings rather than a single product or platform. The core capabilities include Tactical Mission Networks (design, deployment, and sustainment of resilient communication networks), Operational Software Development (custom mission applications built with DevSecOps practices), Cybersecurity & Information Assurance (RMF execution and continuous monitoring), Systems Integration (interoperability engineering across disparate systems), Training & Advisory Services (operational expertise for field deployment), and Foreign Partner Enablement (solutions for allied and partner nations). These services are delivered together as end-to-end solutions spanning the tactical and operational spectrum.

Differentiator

Problem solved

Functional benefit

Products and services

• Tactical Mission Networks

Segments2 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves4 records

Expansion highlights4 records

Direct peers

• MAG Aerospace: MAG Aerospace provides tactical ISR, C5ISR, and operational support services to U.S. and allied military customers. HDC's tactical mission networks and foreign partner enablement directly overlap with MAG's contested-environment communications and coalition support work.
• By Light Professional IT Services: By Light is a closely comparable small/mid defense IT services firm focused on tactical networking, software engineering, and cyber for DoD customers. Both companies target similar tactical-edge and RMF work for U.S. military and allied partners, making them direct competitors for the same contract vehicles.
• Sentar: Sentar is a woman-owned defense cybersecurity and IT services firm specializing in RMF, cyber operations, and systems security engineering for DoD. HDC's cybersecurity and information assurance offerings compete head-to-head with Sentar's core defense cyber portfolio.
• CALIBRE Systems: CALIBRE is a defense and federal management consulting firm providing advisory, training, and IT services to DoD and federal clients. HDC's training & advisory and tactical network capability offerings overlap directly with CALIBRE's defense client work at similar scale.
• RPI Group: RPI Group is a small veteran-owned defense technology and professional services contractor supporting Navy, Marine Corps, and joint tactical customers. Like HDC, RPI is veteran-led and competes in the same niche of tactical technology services for warfighters.

Broad incumbents

• SAIC: SAIC is a major federal/defense IT services prime with deep DoD system integration and software engineering practices. HDC's DevSecOps and systems integration offerings sit within SAIC's broad defense portfolio as a smaller alternative.
• Booz Allen Hamilton: Booz Allen is a top-tier federal/defense management and technology consulting incumbent serving all military branches. Its defense IT, cyber, and tactical advisory portfolio overlaps broadly with HDC's six service lines, though Booz Allen operates at vastly larger scale and breadth.
• Peraton: Peraton is a large defense and intelligence IT services prime offering mission systems, cyber, and signals work for DoD. Its tactical communications and mission software portfolios broadly overlap with HDC's capabilities.
• Leidos: Leidos is a Fortune 500 defense technology integrator serving all major DoD agencies. Its tactical networks, mission software, and cyber/RMF practices are direct comparables to HDC's offerings, but at full-prime scale.

Emerging players

• BlueHalo: BlueHalo is a scaled-up defense technology firm spanning directed energy, space, and C5ISR with overlapping tactical-edge capabilities. HDC overlaps with BlueHalo on tactical networking and operational software but at a much earlier stage and narrower scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/halcyon-days-consulting-llc

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Halcyon Days Consulting Llc