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What We Do

Services & Capabilities

Cornerstone Systems Group delivers professional services and technology solutions designed for the rigor of government contracting and the pace of enterprise operations.

At a glance
Service family
Hybrid Data Intelligence Platform · IT Professional Services · Cybersecurity & Compliance · Cloud & Infrastructure · Program Support
Primary delivery posture
Microsoft-native — Azure, M365, Dynamics 365, Copilot Studio, Power Platform — stack-agnostic where buyer environment dictates.
Primary buyers
Federal civilian agencies · California SLED · regulated commercial enterprise · prime contractors.
Procurement posture
Primary North American Industry Classification System (NAICS) 541512 + 7 secondary codes · SAM.gov registration in progress.
Certification scope
CSG operates within the buyer's certified or authorized environment. CSG does not currently hold independent third-party certification under CMMC, FedRAMP, ISO 27001, or equivalent frameworks.

Hybrid Data Intelligence Platform

Governed AI for regulated buyers. A hybrid query engine that routes business questions to SQL for precise calculations, to Retrieval-Augmented Generation (RAG) for semantic search across documents, or to both for combined answers — every response cited to a specific source row or document. Microsoft-native reference architecture on Azure, M365, SharePoint/OneDrive, and Copilot Studio; also delivered on AWS-native, Anthropic-native, or hybrid stacks based on client environment.

Key Capabilities
  • Hybrid query routing (SQL precision + RAG breadth)
  • Source-cited answers, audit-ready from day one
  • Microsoft-native reference architecture (Azure OpenAI · M365 · Copilot Studio · Power Automate)
  • Three-phase delivery: foundation → expansion → advanced intelligence
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IT Professional Services

Senior-led technical practitioners embedded into mission-critical government and enterprise programs. Experienced principals in program management, systems engineering, and technical operations — right-sized teams, no layers of management overhead.

Key Capabilities
  • Program and project management
  • Systems engineering and integration
  • Right-sized technical practitioner support
  • Operations and maintenance support
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Cybersecurity & Compliance

End-to-end cybersecurity support aligned with NIST, Cybersecurity Maturity Model Certification (CMMC), and federal compliance frameworks. We help organizations assess, remediate, and maintain secure postures for regulated environments.

Key Capabilities
  • CMMC readiness assessments
  • Risk Management Framework (RMF) support
  • Security controls implementation
  • Continuous monitoring programs
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Cloud & Infrastructure

Modern cloud architecture design, migration planning, and ongoing infrastructure management for secure, scalable environments — including Federal Risk and Authorization Management Program (FedRAMP)-aligned cloud deployments.

Key Capabilities
  • Cloud migration strategy and execution
  • Infrastructure architecture and design
  • DevSecOps implementation
  • Hybrid and multi-cloud management
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Program Support

Comprehensive program management and administrative support services to help government agencies and prime contractors execute programs on time and within budget.

Key Capabilities
  • Contract management support
  • Budget and financial analysis
  • Schedule and risk management
  • Reporting and documentation
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California State, Local & Education

SLED Capabilities

Cornerstone Systems Group delivers cloud, cybersecurity, data, and applied AI services for California public-sector buyers. Our delivery posture is built around the documentation, accountability, and procurement awareness that state, local, and education buyers require.

Delivery posture

  • California LLC; California-based delivery footprint
  • Security-first delivery aligned to CDT and CISO-office expectations
  • Microsoft-native architecture compatible with existing M365 tenancy
  • Senior workstream leadership; documentation-first execution

Procurement awareness

  • Public records and FOIA-aware documentation practices
  • SLED contract vehicle posture — Cal eProcure and CMAS planned post-SAM Active
  • Teaming arrangements available for primes pursuing California SLED work
  • Pricing and pursuit posture documented under Government Acquisition

Full California SLED capability narrative — including delivery posture, documentation and accountability practices, Cal eProcure / CMAS pursuit posture, and engagement patterns — is documented on the SLED Capabilities page.

Government Acquisition

How to procure from CSG

SAM.gov registration status, NAICS coverage (541512 primary plus seven secondary codes), and contract-vehicle pursuit posture across GSA MAS, OASIS+, and California SLED — all documented on a dedicated procurement reference page.

View Acquisition Reference

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