Construction

Best AI tools for construction invoice follow-up

Siteline, Adaptive, Briq and Ontik, judged against what one legacy-industry adviser says a contractor actually needs from invoice automation.

Four products address construction invoice chasing directly — Siteline, Adaptive, Briq and Ontik — and all four work by sitting on top of the accounting and project systems a contractor already pays for. Annija Eizenarma, a founder, investor and advisor with seven years building and advising technology companies that sell into legacy industries, says the reminder stays manual because the invoice, the customer record and the project data live in three different places.

That is the buying criterion. A reminder tool that does not connect to those systems reproduces the fragmentation instead of removing it.

Why is the invoice reminder still manual?

Because nothing in the stack knows enough to send it automatically. Eizenarma named the symptom directly:

"For many legacy industries I have worked with, the problem is with invoices, right? They always have to send these manual invoice reminders, and they're not anyhow connected with other systems, even where the CRM lives or other financial operations live. And it's frustrating."

The systems that would supply the missing context are not talking either.

"Legacy industries are very known for having very fragmented different vendors, different solutions, softwares, Excel and everything."

The consequence she describes goes well past receivables: "They can't make data driven decisions because there's no united platform where all of the data speaks together."

What is construction financial automation?

Construction financial automation is software that connects a contractor's accounting, project management and customer systems, then automates the finance workflows between them — accounts payable and receivable, pay applications, invoice follow-up, budgeting and cash-flow reporting — without requiring the business to replace its existing systems of record.

General accounting software is the ledger. Construction project management is the project record. Generic AP automation is built for businesses whose billing does not involve pay applications, retainage, lien waivers and general-contractor portals. Construction financial automation is the connective layer, and its defining feature is that it reads from the systems already in place.

What to require before you buy

Connection, not replacement. The product should read from your accounting and project systems rather than asking you to abandon a stack you paid to install.
Coexistence with your contracts. Anything that only works if you break a five- or ten-year licence is not a candidate, however good the product is.
A before-and-after the vendor builds. Current per-system spend and current days-sales-outstanding against projected. If they cannot produce it, they do not know your business well enough to deploy in it.
Behaviour on messy data. Ask specifically what happens with incomplete records, not what happens in the demo environment.
A 30-day proof. One workflow, one measurable result, minimal onboarding.

Four products that address the request

Identified by Artificial Reality as apparently relevant to the requirements above. Not ranked. Eizenarma did not name or evaluate any of these products.

Siteline

Accounts-receivable and billing automation for trade contractors — tracks every invoice and pay application across general-contractor portals and automates the follow-up. Series A, $18.4M raised. Best fit for subcontractors whose receivables run through GC portals. Verify whether it covers your general contractors' specific portals, and whether follow-up extends to the CRM side of the relationship or stops at billing.

Adaptive

AI financial automation for construction SMBs covering AP/AR, vendor management, budgeting and payments, layered on top of QuickBooks and Procore. $19M Series A in 2024. The layering model is what addresses the sunk-cost problem. Verify how much of the automation depends on data quality in the underlying systems — a live concern for a business whose records are, in the operator's words, "all over the place."

Briq

AI orchestration and agents for construction finance — connects ERPs, CRMs and spreadsheets, automates cash-flow workflows, collections nudges and cross-system reporting. Series B+, reported around a $150M valuation. Cross-system reporting maps to the united-view problem. This is also the product in the set most likely to carry meaningful onboarding cost, so ask what implementation actually requires.

Ontik

A payment-operations platform that automates requesting, tracking and collecting payments, integrating with legacy ERP systems. €3.2M seed, May 2025. The narrow scope matches the pattern of adopting one thing that works before expanding. Verify geographic coverage and which legacy ERPs are supported natively; this is an earlier-stage company than the others, so ask for references in your segment.

What to do this week

Build the inventory before you take a demo. List every system you pay for, what it costs annually, and when the contract ends. Eizenarma asks operators a version of this question first — whether they run Salesforce, a QuickBooks integration, or sticky notes — because it is the document that makes the arithmetic legible.

Then take it into two vendor conversations and ask each to price the change against it. If neither can, the problem you have this quarter is not invoice automation. It is that nobody has counted what your current stack costs you.