Compyle
SmartAppetite Corporation · Coding
Compyle is an AI platform for environmental due diligence, focused on the production work behind every Phase I ESA. It collects historical records, analyzes each source, and drafts report sections inside your firm's own template, so environmental professionals review a finished draft instead of a blank page. The platform is built around ASTM E1527-21 and keeps every claim traceable to the record it came from.
About Compyle
What Is Compyle
Compyle is an AI platform for environmental due diligence, and it targets one specific job: the desk work that goes into a Phase I Environmental Site Assessment. Instead of ordering records from EDR or ERIS and waiting days, you get same-day data packages, and the platform drafts the report sections in your firm's template and voice. Every finding links back to a source document, so nothing ships on an unverified claim.
The people behind it are Jonathan Miranda and Mark Nazzaro, early AI engineers at Hadrius (YC W23). At Hadrius they built AI systems running compliance reviews for thousands of businesses. They started Compyle to carry that same sourced, reviewable approach into environmental consulting. The company is backed by Y Combinator and operates as SmartAppetite Corporation.
The main limit is scope. Compyle handles the desk work, not the site visit. Your environmental professionals still walk the property, make the calls, and sign off on every word. If your firm does mostly small residential transactions, the workflow may be heavier than you need, since the platform is built for the full ASTM E1527-21 record set. Pricing isn't published either. You request a demo and get a quote based on your monthly Phase I volume.
Getting Started
- Request a demo through the Compyle site with your work email, company, role, and how many Phase Is your firm runs each month.
- During onboarding, share your firm's report template so drafts come out in your format and voice rather than a generic one.
- Create a project for a property, and Compyle pulls the historical aerials, Sanborn maps, city directories, and regulatory records required by the standard.
- Review the surfaced findings in the report editor, where each claim shows the source record next to it.
- Leave comments, suggest edits, and approve each section. Nothing goes out without your sign-off.
Product Information
A quick look at Compyle's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Environmental professionals (EPs)
- Small and mid-size consulting firms
- Senior reviewers and QC leads
Tasks
- Assembling Phase I ESA data packages
- Surfacing RECs, HRECs, and de minimis conditions
- Drafting report sections
Scenarios
- A firm with a steady pipeline of Phase Is that wants to stop waiting 3 to 10 days on record orders.
- A team where junior EPs spend hours on manual research and senior EPs spend more hours rewriting their work.
- A consultancy preparing reports that need an auditable paper trail for peer review and QC.
Key features
Automatic Record Collection
Compyle collects the full ASTM record set for every property, including historical aerials, Sanborn fire insurance maps, city directories, USGS topographic quads, and regulatory database records. The pitch is speed and cost. You get same-day packages instead of the 3 to 10 day wait from EDR or ERIS. That timing matters most when a deal timeline is tight. The data step is often the bottleneck.
Source-Linked Findings
Every claim Compyle writes traces back to the record it came from, so a finding points to a specific Sanborn page, city directory entry, or aerial photo. The company advertises a 1:1 source-to-claim link with no unverified claims, which is what makes an AI draft usable in a document you sign. This is the feature that separates it from a generic writing tool. That gap matters.
Drafts in Your Firm's Template
Compyle drafts report sections in your firm's report template and voice, not its own format. For a consultancy, that's a big deal, because you don't have to reformat a draft before it's presentable. The result is a document that looks like your team wrote it. The AI does the first pass instead of a junior EP. For a firm reviewing dozens of Phase Is a month, that kind of Phase I ESA automation adds up fast.
Human Review in the Report Editor
Your EPs review the draft directly in the report editor. They leave comments, suggest edits, and approve sections as they go. Nothing ships without their sign-off, and the final report stays yours. Does that slow review down? Not really. It keeps the professional judgment where it belongs while still removing the blank-page problem at the start.
Built Around ASTM E1527-21
The platform was built around the ASTM E1527-21 standard from day one, rather than retrofitted later. That means the record set and the drafting follow the structure your QC and peer review already expect. Compyle says the tool is designed for the review process your firm does, not in spite of it.
Auditable, Versioned Records
All regulatory records are captured in a versioned, auditable file, so you can trace what was collected and when. For a compliance-driven document, that audit trail is often the difference between a draft you can use and one you have to redo.
Pros and cons
Pros
- Same-day data packages replace the 3 to 10 day wait from EDR or ERIS, which shortens the front end of every Phase I.
- Claims are source-linked, so each finding points to the record behind it and an AI draft stays reviewable.
- Drafts land in your firm's template and voice, cutting the reformatting work that slows down junior-to-senior handoffs.
- Records are captured in a versioned, auditable file, which supports the QC and peer review process your firm already runs.
- Built around ASTM E1527-21, so the workflow follows the standard instead of fighting it.
Cons
- No published pricing. You have to request a demo and wait for a quote, which makes early budgeting harder.
- It covers the desk work only. The site visit, interviews, and professional judgment still fall to your EPs, so it won't replace field capacity.
- API availability isn't documented publicly, so teams wanting to wire Compyle into existing systems can't confirm that path without asking.
Frequently asked questions
It's an AI platform for environmental due diligence that automates the production work behind a Phase I ESA. As Phase I ESA software, it collects the required records, analyzes each source, and surfaces findings. Then it handles the environmental report drafting in your firm's template for your EPs to review and approve.
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