What Chatham Financial's AI Win Means For UK SMEs

Chatham Financial, a US capital markets advisory firm, has used OpenAI's Codex and GPT-5.6 to redesign its trade validation workflow. The task that used to take a team member 30 minutes per trade now takes under 4 minutes, according to OpenAI's own customer writeup.

Why this matters beyond finance

Trade validation sounds niche, but strip away the jargon and it is a repetitive checking task: pull data from several sources, compare it against a set of rules, flag anything that does not match, sign it off. Every UK trade or construction business has a version of this. Checking a supplier quote against a materials list. Matching delivery notes to purchase orders. Cross-checking a RAMS document against site conditions before work starts.

Here is a worked example. Say your office manager checks 15 supplier invoices a day, each taking 25 minutes to match against delivery notes and purchase orders. That is over 6 hours a day, more than 30 hours a week, just on checking. If an AI-built workflow does the first pass and only flags the exceptions, you are not looking at a small saving. You are looking at the same shape of result Chatham Financial got: a 25-minute task cut to under 5 minutes, because the human only steps in when something genuinely does not match.

The margin impact is the real story. Thirty hours a week of checking work, recovered even partially, is the equivalent of adding most of a part-time role back into the business without hiring anyone. For a trades firm running on tight margins, that is the difference between quoting competitively and still making money, or quoting competitively and bleeding time you cannot bill for.

What to do this month

• Pick one repetitive checking task your team does daily, invoice matching, quote comparison, delivery note reconciliation.
• Write down the exact steps a person follows, in order, including what they check it against.
• Ask whether an AI tool can do the first pass and only hand you the exceptions, not the whole task.
• Time the current process for one week before you change anything, so you have a real before-and-after number.

You do not need a capital markets budget to copy the logic. You need one task mapped out properly and the discipline to measure it.