Government Contracting & Capability Overview
Legendary Concepts Ltd is a Cleveland-based software engineering firm specializing in Microsoft 365-native, .NET, and AI-assisted systems built for compliance, reliability, and performance.
We deliver solutions that exceed expectations — on time, on budget, and in alignment with federal and state contracting standards.
DUNS: 60-116-6783 | CAGE: 92V92 | UEI: KLJALED4BME9 | SAM.gov: Active
NAICS Codes: 541511 · 541512 · 541613 · 518210
Company Overview
Founded in Cleveland, Ohio, Legendary Concepts Ltd is a custom software development and modernization partner serving government agencies, healthcare organizations, and regulated enterprises.
For more than 25 years, we’ve delivered secure, audit-ready, and high-performance systems using Microsoft technologies — C#, .NET, SQL Server, Azure, and Microsoft 365.
Our mission is simple:
to turn complex operational challenges into compliant, explainable, and efficient software solutions.
We help agencies improve workflow reliability, automate approvals, and meet strict regulatory mandates without sacrificing agility.
Leadership
Mark Holmes — Founder, Principal Engineer
Principal Investigator – NSF Small Business Innovation Research (SBIR) Project Pitch: AI Workload Orchestrator for Regulated Microsoft 365 Teams
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Mark Holmes brings more than 25 years of experience designing and delivering mission-critical .NET systems. His contributions include directing key development and production efforts on NASA’s Mishap Information System — an agency-wide risk-management platform used across all NASA centers — as well as building compliance and reporting systems for the Cleveland Metropolitan School District and the ADAMHS Board of Ohio.
Mark’s expertise spans C#, ASP.NET Core, Entity Framework Core, SQL Server, Azure DevOps, and AI-driven automation. He combines deep technical skill with a commitment to reliability, explainability, and compliance — principles that guide every Legendary Concepts project.
Past Performance & Partners
NASA
​Designed, developed, and maintained an agency-wide ASP.NET/SQL Server application supporting real-time safety analysis across all NASA centers. Result: +50 % proactive reporting, zero critical downtime.
CMSD
Built compliance and truancy reporting systems for the Cleveland Metropolitan School District that streamlined data submission and increased operational productivity across the district.
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ADAMHS Board of Ohio
Refactored mission-critical legacy VB/SQL code, automated ETL tasks, and improved reporting reliability for state-funded mental-health services.
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Core Competencies
Software Engineering & Integration
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Custom Software Development (.NET 6/7/8, C#, EF Core, SQL Server)
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REST API Design & System Integration (Microsoft 365, SharePoint, Azure DevOps)
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Cloud Infrastructure & Automation (Azure, CI/CD, PowerShell)
Data & AI Solutions
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AI Workload Orchestration (LLM + Deterministic Constraint Solver)
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Reporting & Analytics (SSRS, Power BI, custom dashboards)
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Compliance-Ready Architectures (HIPAA, CJIS, FedRAMP-aligned)
Why Choose Legendary Concepts
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Proven leadership in federal and municipal technology projects (NASA, CMSD).
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Deep expertise in secure, audit-ready Microsoft 365 environments.
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AI + Constraint-Solver R&D under NSF SBIR program — delivering explainable, policy-safe automation.
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Agile and responsive delivery — scalable from solo SME support to full-team engagements.
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Ohio-based small business committed to transparent, results-driven partnerships
Business Information
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Legal Structure: Single-Member LLC (Ohio)
DUNS: 60-116-6783 | CAGE: 92V92 | UEI: KLJALED4BME9 | SAM.gov: Active
NAICS Codes: 541511 • 541512 • 541613 • 518210
Email: mholmes@conceptsoflegends.com