Illumend vs. Billy: which one gets your whole vendor base compliant?

Illumend and Billy both use AI to help vendors get compliant, and Billy does it well within its lane: its AI Review Assistant tells a subcontractor what's wrong with a certificate before the GC team ever sees it. The difference that decides your compliance rate isn't whether each platform guides partners, both do, it's how far that guidance reaches. Billy guides construction partners, and routes the complex endorsements to its human team. illumend's AI guide, Lumie, guides every partner, in any industry, through the complex endorsements too, to compliance in real time. If your vendor base is anything other than construction-only, that gap is the whole comparison.

So judge them on the outcome that actually matters: what share of your partners achieve compliance, and with how much friction, or lack thereof. 
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What do the Illumend and Billy COI tracking platforms do?

More than you'd expect, which is why they share a shortlist. Both collect COIs and supporting documents, verify coverage against your requirements, and let vendors submit without a login. Both integrate with Procore. And, importantly, both put a vendor-facing AI in front of the partner: Billy's AI Review Assistant explains what's missing on a submitted certificate, and illumend's Lumie does the same. Billy is one of the few competitors that actually built partner-side guidance rather than leaving the vendor to guess. The difference is, Billy touts an AI Assistant. illumend offers Lumie, which is like having an insurance sidekick by your side, your third-party partner’s side and their agent’s side, that lives throughout the product and in every workflow.

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Compliance is your partner's outcome, across your whole vendor base

Compliance isn't something your team achieves at a desk. It's something every third party has to reach by submitting the right documents and "every third party" is the operative phrase. Your compliance rate is measured across your entire vendor population: the subcontractors, yes, but also the landscapers, the IT vendors, the janitorial services, the suppliers, the consultants. A platform lifts your rate only if it can guide all of them to compliance.

That's the lens that separates illumend and Billy, because Billy was built for one vertical on purpose.
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Where does Billy's partner guidance stop?

Billy's positioning is explicit and consistent: "Built for Builders, By Builders," the all-in-one construction compliance platform. That focus is a real strength inside construction and a hard ceiling outside it. Billy's AI guides construction partners against construction requirements. The non-construction vendors in your base don't fit the model, which means a meaningful slice of your vendor population gets no AI guidance at all. You can't reach a high compliance rate across a mixed base with a tool that only speaks to part of it.

There's a second ceiling, inside the construction. Billy's AI Review Assistant detects the standard endorsements, additional insured forms, waiver of subrogation, primary and non-contributory wording. For the non-standard and complex scenarios, Billy relies on its CRIS-certified human team. That's a credible model, but it means the hardest documents, the ones most likely to hide a coverage gap, route to a person, and the partner waits on that human review to clear. Billy's own April 2026 writing acknowledges that its AI misses things and that human review is still needed. That's an honest admission, and it's also the boundary of how far Billy can guide a partner on its own.
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What does the partner experience with Illumend and not with Billy?

Lumie guides every partner, regardless of industry, all the way to compliance. It requests the documents, reviews them in real time, and returns a decision in minutes. It reads the full arsenal of documents requested, every endorsement, waiver, additional insured form, follow-form clause, and primary-and-non-contributory provision, including the complex and non-standard cases, rather than holding those for a human team. When something's missing, Lumie tells the partner exactly what, in plain language they can act on, and re-reviews the moment they fix it.

Lumie can do this because it was trained on 16 years of myCOI compliance work with 45M+ documents reviewed, 750K+ third-party partners cleared, so the depth that Billy staffs a human to handle is built into the AI itself. The partner doesn't get guided on the easy parts and queued on the hard ones. They get guided through all of it, in one continuous path to compliance.
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Why does this determine your compliance rate?

Your compliance rate is a function of how many partners actually finish, and partners finish a process they can navigate to the end. Billy caps that two ways: by industry, because non-construction partners aren't served, and by complexity, because the hard endorsements wait on a human review step. Both caps leave partners stalled, and stalled partners are exactly the gap in your rate.

illumend removes both caps. Every partner, in every industry, gets guided through every document type to be compliant, in real time. That's how a compliance rate climbs across the whole base rather than just the construction slice of it. Lumie offer’s a workflow that partner’s genuinely want to complete, because they understand it.

How do illumend and Billy compare on the partner outcome?

Which COI platform is right for your organization? illumend or Billy?

Choose Billy if your vendor base is construction, you run on Procore, and you want a small human team as backup, even if it causes time delays.

Choose illumend, from myCOI, if your compliance rate depends on getting your whole vendor population to compliant,  including the non-construction partners. illumend guides every partner, in every industry, through every document type, in real time, and it's built for the compliance owners who aren't insurance experts and never wanted to be.

The deciding question is simple: how many of your vendors does the tool actually guide to compliance? Billy guides the construction ones, on the standard documents. Lumie guides all of them, through all of it. Your compliance rate reflects the difference.

CTA: See Lumie guide a partner to compliant. Schedule a demo. CTA destination: https://www.illumend.ai/schedule-a-demo

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