Production AI for the work behind your business. We build it, connect it, and run it.
AI does the first pass. Your people make the call. We design, integrate and run AI systems for high-volume work, inside your own environment.
30 minutes with a partner, or write to hello@FourToOne.ai
- Our engineers hold AWS, Google Cloud and Azure certifications.
- Every system runs inside your own environment.
Samples from our demo set
Screens from our demo set, run on sample data.
Sample scenario, invented data.
What we do
Automate operations
AI workflows for orders, invoices, inboxes, reporting and compliance, built into your ERP and email and tested on your real transactions. When the work needs its own application, we build that too.
Includes: process mapping, data cleanup, the AI workflows and integrations, and custom applications such as review queues, internal tools and client portals.
Private AI environments
A private, governed AI environment in your own cloud account or on your servers, so your staff can use AI on real work and your data stays under your control.
Includes: the environment, access controls and logging, assistants that answer from your own policies with citations, usage policy.
Manage and improve
We run what we build, and AI systems you already have, with monitoring, fixes as your systems change, and a monthly scorecard.
Includes: operations, accuracy work, model and prompt updates, new workflows when you're ready.
Fractional AI leadership
A fractional Chief AI Officer for companies where AI is a board topic but not yet anyone's job.
Includes: the AI roadmap, governance, vendor review, reporting to the board or the regulator.
More work handled by the team you have, with every step on the record.
Sample scenario, invented data.
Four streams of work in. One checked stream out.
Orders, invoices, emails and forms arrive however your customers and vendors send them. The system reads each one and checks it against your records. Most clear on their own under the rules you agree; the exceptions go to a named person.
The work we take on, and what your team keeps
High-volume, rule-bound work, wherever it sits in the back office. If people key it, check it or chase it by hand, we can build for it.
| Area | What the system does | What your team keeps |
|---|---|---|
| Order to cashPurchase orders and quotes, order entry, cash application, collections, disputes | Reads orders in any format, checks items and prices against the contract, prepares the entry in your ERP, matches payments to open invoices, and drafts follow-ups in your tone. | Pricing exceptions, credits, write-offs and the customer call. |
| Operations and supply chainSupplier order acknowledgments, expediting, quotes for engineered products, submittals and change orders, project status reports | Reads supplier and project paperwork, checks it against the order, the drawing or the schedule, chases what's late, and drafts the status report. | Engineering judgment, supplier decisions and what the customer is told. |
| Banking operationsLoan file intake and document chase, deposit operations exceptions, account maintenance, answers for frontline staff | Collects and checks loan documents, drafts the next request, works exception queues, and answers staff questions from your own policies, with citations. | Credit, pricing and account decisions. |
| Procure to payInvoices, three-way match, vendor onboarding, vendor questions, bank-detail changes | Matches invoices to purchase orders and receipts, sorts exceptions by cause, drafts the vendor questions, and holds any change to where a vendor gets paid. | Approving payments and vendor changes. |
| Record to reportReconciliations, month-end close, recurring reports, variance commentary, journal entries | Reconciles accounts, assembles the numbers on schedule, flags what moved, and drafts the commentary and the entries for review. | The judgment and the sign-off. |
| Inboxes and requestsShared inboxes, customer requests, service tickets, intake forms | Sorts every message by type and urgency, routes it to the right queue, and drafts the reply. | Anything unusual, and the send button. |
| Documents and complianceContracts, leases, policies, filings, audit evidence | Reads each document, checks it against its rules, and cites the page. | Every decision the rules leave to a person. |
If a product you can buy today does the job, buy it. We'll tell you when that's the case.
Asked to cut a corner, it stops.
And it hands the decision to the person who owns it.
It held the payment, flagged the mismatch on the vendor record, and drafted a callback task for a named person.
Sample scenario, invented data.
| Someone asks it to | What it does instead |
|---|---|
| Change a vendor's bank details from an emailed request | Holds the change and the payment, flags the mismatch, and drafts a callback to a number already on file. |
| Plug a trial balance that is $1,250 out of balance | Stops that entity and drafts a question to the bookkeeper. |
| Approve a credit above the customer's limit | Routes it to the person with that authority, with the account history attached. |
| Send customer records to an outside party | Drafts a consent request first and waits for approval. |
| Send a follow-up, counteroffer or statement on its own | Drafts it and waits for a person to approve. |
Measure first, then build, then manage it
- 01
Diagnostic
We measure what one process costs you today, run the system on a sample of your past work, and give you a fixed quote. You see the math before you sign.
The diagnostic ranks your processes by what they cost today and how well they fit, and ends with a fixed quote. - 02
Build
One workflow, inside your systems, including the data and process fixes the system needs first. Tested on your real transactions, with a review queue for your team and a way to stop it at any time.
Build delivers the system and a review queue your team works from. - 03
Manage
We operate it: monitoring, updates, fixes as your systems change, a monthly report on volume, accuracy, cycle time and cost, and new workflows when you're ready.
Every month you get a scorecard: what the system handled, what went to a person, how long it took.
Every phase is a fixed fee, quoted after our first conversation. If the scope is already clear, we can start at Build or Manage.
Sample scenario, invented data.
Your environment, your people, every step on the record
- Environment
It runs in your AWS, Azure or Google Cloud account, or on your own servers.
- Certifications
Our engineers hold AWS, Google Cloud and Azure certifications.
- Decisions
Every exception goes to a named person at your company, and they make the call.
- Audit log
Every step the system takes is logged with the time and the detail.
- Your data
We don't train models on your data.
- Ownership
What you can keep using, the code and documentation you receive, and the handover help we provide are set out before work begins.
- Security
We work inside your access controls and complete your security review.
Who we work with
Companies whose back office has to keep up with the business.
Owner-led and family companies
One workflow working in your business before you commit to more.
See how it works for owner-led companiesCompanies growing fast or through acquisitions
More volume and more systems, without a back office that has to grow at the same pace. We connect what you've acquired and take on the routine work as you scale.
See how it works for growing companiesPE sponsors and operating partners
Prove it in one company, then repeat it across the portfolio, measured the same way each time.
See how it works for sponsorsBanks and credit unions
AI built inside your environment, with the governance and audit trail your examiners expect.
See how it works for banks
We work across manufacturing, distribution, financial services, real estate and professional services.
IT service providers, resellers and accounting firms: add AI engineering to what you offer your clients. We build and run it under your relationship with the client. See partnerships
Built by operators
Four to One is a partnership of operators. Our partners have run technology inside a regulated financial institution, led acquisitions and integrations at a public AI company and a global technology distributor, and spent more than 25 years building enterprise software and AI, including at IBM. A partner leads every engagement, and access to client data and production systems stays in the US.
Questions we get asked
Does this replace our staff?
It takes on the routine part of a process, so the people you have can handle more volume. What you do with the time is your decision.
What if the AI gets it wrong?
Anything outside the agreed rules goes to a named person on your team before it's entered or sent. Every step is logged. If the system stops, the work falls back to your team's queue.
Where does our data go?
It stays in your environment: your cloud account or your servers. We tell you in writing where every step runs and which model services, if any, are involved. Access to client data and production systems stays in the US.
How long until something is live?
The diagnostic takes 2 to 3 weeks. The first workflow goes live 6 to 12 weeks after that.
Why not use our IT provider or a larger firm?
Most IT providers keep your systems running but don't build AI, and larger firms often deliver a roadmap and leave the building to someone else. We do both: we build the system inside your environment and run it afterward, with a partner on every engagement. We work alongside your IT provider, not instead of them.
What if we decide to end the engagement?
Before work begins, the agreement sets out what you can keep using, the code and documentation you receive, and the handover help we provide. You know in advance what your team or another provider would need to take it over.
Bring the pile that costs you the most.
In 30 minutes we'll tell you whether it's worth a diagnostic, and what the first pass would look like on it.
Thanks. A partner will reply within one business day.
Want to pick a time now?
What you get from the 30 minutes
- Which process to start with
- Whether it's worth a diagnostic
- What the first pass would look like on your work