Billy vs myCOI: Which COI Tracking Software Fits General Contractors?

By Nyasha Gutsa, Co-founder, Billy · Updated September 2026 · 7 minute read

Key takeaways

• Billy is COI tracking software built only for construction. It combines AI review of COIs and endorsements, vendor prequalification, project-based requirements, managed services, and integrations across both project management and accounting systems.
• myCOI is a long-running COI management provider based in Indianapolis that serves multiple industries, including construction and commercial real estate. Its newer AI platform is branded illumend, with an AI engine called Lumie.
• myCOI’s best-documented construction integration is Procore. Billy publishes integrations with Procore, Autodesk, Trimble ProjectSight, Viewpoint Vista, Sage 300, Sage Intacct, CMiC, JD Edwards, and Acumatica.
• Choose Billy if you are a general contractor that needs prequalification and compliance tied to your ERP. Consider myCOI if you manage compliance across several industries and Procore is your only construction system.

Billy vs myCOI at a glance

Details for myCOI are drawn from its public website as of September 2026. Confirm current capabilities with the vendor.

Construction-specific focus

Billy is organized around how construction works. The platform tracks COIs alongside W-9s, business licenses, and other vendor documents, and it structures everything by project, contract, and vendor. That matches how a general contractor actually assigns risk: the same subcontractor can be compliant on one job and noncompliant on another because the contract requirements differ.

myCOI has served construction for years and describes its illumend platform as built with the industry in mind. It also sells to commercial real estate and other sectors. That breadth is a strength if your organization manages tenants and vendors as well as subcontractors. It matters less if every compliance question you have starts with a project and a subcontract.

AI review of COIs and endorsements

Billy’s AI Review Assistant reads each certificate and endorsement line by line and compares it to the requirement group on that project. It flags specific gaps, such as a missing additional insured endorsement or a limit below the contract minimum, so a reviewer handles exceptions instead of rereading every PDF. A CRIS-certified managed services team can take over review entirely.

myCOI’s illumend platform uses an AI engine called Lumie. According to illumend, Lumie reads contracts, extracts insurance requirements, scans proof of coverage, and returns a compliance score in minutes. It also guides vendors through questions about what coverage they need.

The best test is practical. Give both vendors the same certificate, endorsement, and contract requirements. Ask each to identify the missing language, explain every decision, and show how an ambiguous endorsement gets routed to a human.

Vendor prequalification and project-based requirements

Billy combines subcontractor prequalification with project-level compliance. A custom form on your own website collects business details, W-9s, licenses, and COIs upfront. Vendor records capture EMR, TRIR, revenue history, financial ratios, bond claims, and single-project bonding limits, plus diverse-business classifications. When the vendor wins work, that record connects to the project’s requirement group, so nothing is collected twice.

myCOI’s public materials focus on certificate collection, review, and renewal tracking. Prequalification is not a highlighted capability. If you need safety and financial screening before award, ask myCOI to demonstrate it or plan for a separate tool.

Integrations and ERP payment holds

This is the clearest difference for general contractors.

Billy connects to project management systems (Procore, Autodesk, Trimble ProjectSight) and to accounting and ERP systems (Viewpoint Vista, Sage 300, Sage Intacct, CMiC, JD Edwards, Acumatica). Projects, contracts, and vendors flow into Billy without re-keying. On the accounting side, compliance status is available to AP, so finance can hold payment to a noncompliant subcontractor inside the ERP.

myCOI’s Procore integration is deep. Users can create projects, subcontractors, and commitments in myCOI without leaving Procore, and compliance updates flow back to Procore to support payment decisions. Beyond Procore, myCOI lists MRI and offers an open API for other connections.

If Procore is your only system, both vendors cover you. If you run ProjectSight, Autodesk, Vista, Sage, or CMiC, Billy has a published integration and myCOI would require API work.

API, MCP server, and developer access

Billy provides a documented REST API covering projects, vendors, contracts, certificates, requirement groups, and custom forms. It supports bearer-token authentication, incremental sync with a since parameter, and bulk upserts by external ID. Billy also offers an MCP server, which lets AI assistants such as Microsoft Copilot, Claude, and ChatGPT query compliance data directly.

myCOI offers an open API through illumend. We did not find a published MCP server.

Managed services and onboarding

Both vendors offer human review alongside software. Billy’s managed services team is CRIS-certified, a credential specific to construction risk and insurance. myCOI brings 16 years of managed compliance experience across industries.

illumend describes a three-step start: upload your partner list, add insurance requirements, and import existing COIs. Billy’s integrations import projects, contracts, and vendors directly from your existing systems. For either vendor, ask for a written onboarding plan based on your vendor count, projects, and data migration needs.

Who should choose Billy

Choose Billy if you are a general contractor, owner, or developer who:

• Needs prequalification and COI tracking in one vendor record
• Runs ProjectSight, Autodesk, Vista, Sage, CMiC, JD Edwards, or Acumatica
• Wants AP to see compliance status before paying a subcontractor
• Wants a construction-credentialed team available to run reviews
• Plans to use AI agents against compliance data

Who should choose myCOI

Consider myCOI if you:

• Manage compliance across construction and other portfolios such as commercial real estate
• Use Procore as your single construction platform
• Want contract-reading AI to extract requirements for you
• Do not need built-in subcontractor prequalification

Frequently asked questions

Is myCOI now called illumend?

illumend is the AI-powered compliance platform built by the creators of myCOI. Both brands appear on the company’s site, and myCOI support remains available to existing customers.

Does myCOI integrate with Trimble ProjectSight or Viewpoint Vista?

We did not find published myCOI integrations for ProjectSight or Vista. myCOI highlights Procore, MRI, and an open API. Billy publishes integrations for both ProjectSight and Vista.

Do Billy and myCOI both offer an API?

Yes. Billy documents a REST API and an MCP server. myCOI offers an open API through illumend.

How do Billy’s ERP payment holds work?

Billy makes vendor compliance status available inside your accounting system or ERP. Finance checks that status before releasing payment. Your ERP configuration determines whether a noncompliant status creates an automatic hold or a manual approval step.

Which is better for general contractors?

For contractors whose compliance process starts at prequalification and ends at payment, Billy covers more of the workflow and more of the construction software stack. For multi-industry organizations centered on Procore, myCOI is a credible option.

Get a Billy demo

Book a Billy demo and bring a real certificate and contract. We’ll map your vendor and project data across your construction software and show where AI review and managed services replace manual work.