Procurement Workflow vs. Invoice Verification Overlay
SubBase runs your procurement workflow end-to-end — material requests through invoice match — for trade subs with vendors on their network. CheckIT overlays the workflow you already have and verifies any invoice line by line against any contract, quote, or rate sheet. Different jobs, different ICPs.
No procurement workflow to adopt. No vendors to onboard. No ERP integration required.
Quick verdict
What SubBase does
SubBase is a vertically focused construction procurement platform built by a third-generation builder for trade subcontractors. It runs the full materials-buying loop in one place: material requests from the field, RFQs and quote leveling, POs, delivery tracking, AI invoice reconciliation, and a curated two-sided vendor network (Ferguson, Hilti, Colony Hardware, SiteOne, and others) with named sales reps per branch.
- Material Requests + RFQ leveling + PO dispatch
- AI invoice reconciliation (~21 sec/invoice, binary tabs: Match / Partial / No Match)
- Configurable AP approval pipeline + role-based permissions
- Bi-directional ERP sync (QuickBooks, Sage, Viewpoint, Procore, Acumatica, CMIC, Foundation)
With ~$5M raised through Series A (Fika Ventures lead) and a customer-reported $24K recovered in the first month on the invoice-reconciliation module, SubBase is a credible, well-built procurement system. Invoice reconciliation is one of five integrated capabilities — not the headline product.
What CheckIT Invoice does
CheckIT compares every line on an incoming invoice against your contract baseline — a quote, a rate sheet, or a rolling 12-month historical pattern — and tells you exactly what's wrong, where, and by how many dollars. No procurement workflow to adopt. No vendors to onboard. Runs on the documents you already have.
- Line-item verification against any contract document (quote, rate sheet, or historical)
- Severity-ranked dollar delta per line (High / Medium / Low), explainable
- Hybrid engine — deterministic rules + probabilistic AI for the cases rules can't catch
- 75% less manual review time — minutes per document
Minutes per document. No 60-day implementation. No vendors to onboard. Upload a PDF and a baseline document — get back an explainable, dollar-quantified report.
Feature comparison
SubBase replaces the workflow. CheckIT overlays it. Different jobs.
SubBase's invoice reconciliation is one module inside a five-module procurement platform. To use it, the invoice has to come from a PO issued through SubBase, against a quote leveled through SubBase, from a vendor on the SubBase Network. When that loop is intact, SubBase is genuinely fast — ~21 seconds per invoice — and the user gets a tabbed result: this line matches, this one partially matches, this one doesn't. That's a procurement-efficiency outcome and it serves the Procurement Manager well. JGR Construction's published $24,000 vendor credit recovered in the first month is real proof the module works.
“We have an invoice system and still HAVE TO manually check every line — the system says 'matched' but the rate's wrong.”
Mid-market GC Controller, $80M revenue (anonymized)
CheckIT Invoice is built for a different person at a different moment. The buyer is the Controller, AP Director, or CFO at a mid-market GC or industrial owner — someone who already has a procurement system, already has an ERP, and is being asked by their audit committee to defend why a project lost margin to invoice errors. That buyer doesn't need a new workflow. They need a verification layer that runs on whatever documents they actually have. CheckIT verifies every line against the contract baseline — quote, rate sheet, or rolling 12-month historical — ranks the discrepancies by severity, shows the dollar delta, and produces an audit-ready artifact in minutes.
The structural difference is the point. SubBase verifies what stays inside SubBase. CheckIT verifies what's in front of you — including, if you also run SubBase, the same invoices SubBase already matched.
Use SubBase if procurement IS the job.
You're a trade subcontractor ($5M–$100M) in plumbing, MEP, concrete, or electrical and you need one platform to run material requests, RFQs, POs, deliveries, and invoice matching with vendors who are already on the SubBase Network. The procurement workflow is the value you're buying. Your Procurement Manager owns the decision and lives in the tool daily. SubBase is widely regarded as best-in-class for the trade-sub procurement loop.
Use CheckIT if verification IS the job.
You're a mid-market GC, industrial owner, or PMC firm. You already have a procurement system, an ERP, and project-management software — adding a sixth platform isn't on the table. You need an audit-grade verification layer that runs on the documents you already have, against any contract or rate sheet, with severity-ranked output an audit committee can read. CheckIT is the answer when verification is the job and the workflow is already in place.
The cost of not verifying
SubBase's published $24K-recovered-in-first-month outcome (JGR Construction) is real proof procurement matching works — inside the SubBase loop. These are the numbers for every invoice outside it.
Across the trades, 39% of construction invoices contain an error.
As a share of invoice value — quietly compounding across every job.
Minutes per document instead of the better part of an hour.
Extrapolated from active pilot data. Results vary by invoice volume and contract complexity.
CheckIT vs. SubBase — common questions
SubBase matches invoice line items to the originating SubBase PO — not to an external contract, quote, or rate sheet. The result surface is binary (Match / Partial / No Match) and assumes the invoice came from a PO issued through SubBase. CheckIT verifies any invoice against any contract document — quote, rate sheet, or rolling 12-month historical — and produces a severity-ranked dollar delta per line.
Yes — they do different jobs and overlap cleanly. A trade subcontractor running SubBase for the full procurement workflow can hand CheckIT the same invoice for an audit-grade second opinion on rate, quantity, or unit. CheckIT is positioned as a verification overlay, not a workflow replacement, so it sits on top of whatever procurement and ERP stack you already run — including SubBase.
SubBase replaces the procurement workflow end-to-end; CheckIT overlays the workflow you already have and verifies the invoice line by line. SubBase's ICP is trade subs ($5M–$100M) and the buyer is the Procurement Manager. CheckIT's ICP is mid-market GCs, industrial owners, and PMC firms and the buyer is the CFO, Controller, or AP Director.
Different pricing mechanics, so direct comparison is unfair. CheckIT is per-document or per-engagement — you pay only for what you verify and ROI lands on document one. SubBase is a per-tier subscription (no per-user, no per-project, unlimited storage) but pricing is demo-gated and not published. Most buyers run both for a quarter to compare ROI rather than price.
No. CheckIT runs on the PDF you upload and the contract document you upload against — no ERP integration, no procurement workflow, no vendor onboarding required. You can verify a SubBase-issued invoice, a Procore-issued invoice, or a vendor email with no PO at all. First verified invoice in minutes.
Compare CheckIT to other tools
See CheckIT Invoice run against one of your invoices.
Upload one PDF and the contract, quote, or rate sheet it should match. We'll show you exactly where the line items don't line up — and the dollar delta — within minutes.
No ERP integration required. No procurement workflow to adopt. No vendor onboarding. No credit card.