Your supplier is charging more
than they quoted.
We find it.

You send us your invoices and any quotes or agreements you have on file with the supplier. We parse every line item, match invoiced prices against quoted prices, flag SKU substitutions, identify duplicate charges, and map any spend with no agreed price on record. Every finding is sourced to the exact invoice line and the exact quote it was compared against. You receive a findings report, a CSV export, and a PDF formatted for supplier negotiation or legal use. First findings are delivered within 3 days.

We work with whatever documented pricing exists — formal quotes, purchase orders, GPO rate sheets, contract schedules, or email confirmations. If no agreed price exists for a line item, we flag it as unquoted spend and export it as a Not-In-Quote (NIQ) list. In one live engagement, 74.9% of total line items had no agreed price on record. That list alone becomes your first conversation with the supplier. You now have documentation of what they were setting unilaterally.

Six documented patterns appear across every engagement: Price vs. Quote Gap — invoiced unit price above the agreed quote, compounding across hundreds of lines; SKU Substitution — same product description, different SKU, different grade, price multiplier of 3× to 29× not proportional to the grade difference; Quantity Discrepancy — billed for more units than ordered; Duplicate Charge — same item billed twice across separate invoices; Algorithmic Price Creep — small monthly increases applied incrementally across a full supplier history; Unquoted Spend — items billed with no agreed price, supplier setting the number unilaterally.

First findings are delivered within 3 days of receiving your documents. A full engagement depends on invoice volume and the number of suppliers being analyzed. Most engagements covering one supplier and 3–12 months of invoice history complete within 5–7 business days. We deliver iteratively — you start seeing findings while the analysis is still running, not after a weeks-long black box.

No. Flat rate only. Pricing is based on invoice volume — how many invoices we are analyzing. We do not take a percentage of recovery. All findings are yours. You decide what to do with them — whether that is a supplier negotiation conversation, a credit request, a formal dispute, or evidence for litigation. We document the findings. The recovery strategy is yours.

Any business that receives supplier invoices against an agreed price. Documented engagements include electrical contracting and landscape and irrigation contracting. The mechanism — SKU substitution, price creep, unquoted spend — appears across electrical supply, plumbing supply, HVAC equipment, roofing materials, PVC and pipe fittings, food service, and industrial distribution. If you have invoices and any reference pricing, the engagement runs.

When you open an engagement, you get access to a live client account — a purpose-built CRM dashboard organized around your specific suppliers, your jobs, your quotes, and your invoices. Everything is in one place from day one. The account is yours for the duration of the engagement and beyond. Inside your account: every invoice and quote organized by supplier and job; a Not-In-Quote (NIQ) export — every line item billed with no agreed price on record, formatted as a CSV to send directly to your supplier to force a quote update; a full findings export — every documented overcharge with invoice line, quote line, delta per unit, quantity, and total dollar impact; a PDF report covering every confirmed finding and every suspect pattern — including patterns that suggest pricing algorithm behavior in your supplier's billing or distribution software. Export format is not fixed. CSV, Excel, PDF, plain text, Markdown, HTML — if you need it in a specific format for your AP system, your attorney, or your own records, ask and we will produce it. Synterminal's background is semantic web engineering, knowledge graph architecture, and data engineering. If there is a format you need, we can build it. Beyond the standard deliverables: if you have an intuition about a specific part, a specific job, a specific time period, or a pattern you've noticed yourself — bring it to us. We will run it. Most clients end up with more intelligence than they anticipated, because most services in this space stop at finding the overcharge. We go further. Your data was built by software. Software is built by humans. Humans build following patterns. We look for those patterns on your behalf — the ones hiding underneath the surface of what the invoice says. If you have questions about what else Synterminal can do beyond invoice forensics, the answer is: point this same capability at any research question you have. That is Synterminal.

Your accountant reconciles payments to invoices — they confirm money left the account and the invoice exists. Invoice forensics compares invoiced prices to agreed prices at the line-item level and detects substitution, pattern, and unquoted spend that is invisible to standard AP review. The overcharge patterns we find are specifically designed to survive a manual review. No accountant catching a 29.23× SKU substitution at volume is the norm. That is what forensic analysis is for.

Yes. NDA is standard on every engagement before any documents are shared. Supplier names, invoice data, and findings are not disclosed publicly. The case study data referenced on this page is used with client knowledge and all identifying information — supplier names, job names, entity names — is withheld.

Yes. Every finding is sourced to the exact invoice line and the exact quote it was compared against — dollar amount, date, SKU, delta documented. The PDF report is formatted for attorney use and is suitable for discovery, deposition support, or demand letter documentation. Law firms working construction defect, contract dispute, and procurement fraud matters have used this analysis as primary evidence. If your attorney needs Synterminal as a consulting witness, that is available.