Commercial analysis, working shown

Find the margin you’re missing.

Consulting-grade answers for the people running the business. A team of AI agents interrogates your sales and margins: what changed, why and which moves are worth the most.

Debated. Refined. Traceable.

What you get

An analyst team that never stops looking.

All your data
  • Sales and margins
  • Stock and pricing
  • Customers and CRM
  • Strategy and board papers
  • Your plans and targets

Your analyst team

AI agents, run by us

  • The moves worth making

    Ranked by what each should earn.

  • A weekly report

    What changed, why and what to do.

  • Answers when you ask

    By email, to the same standard.

What’s in it for me?

  • More margin, biggest first.

    Every move is ranked by what it should earn.

  • You hear about it in real time, not at the year end.

    While there is still money to save.

  • Advice that knows your business.

    It reads your plans alongside your figures, like another board member.

  • One plain answer, not a dashboard.

    And when nothing needs doing, it says so.

  • Every figure shows its working.

    Follow any number back to the script that worked it out and the rows it read. None comes from the AI’s memory.

Before a report reaches you, rival explanations are tested, a critic checks the reasoning and an editorial panel argues over the draft.

What lands in your inbox

The money first. Then what to do about it.

When something changes in your sales, the agents find out why and rank what to do by what it should earn. This is one of those reports.

Anomaly reportExample

£5,000 a month

Restock 38 stores before home games.

Your 38 stores near the football stadium are selling 15% more since the season began in August, almost all of it on home match days. On those days your 2 best sellers are gone by 2pm.

Moves, ranked by worth
  1. 1Top up the 38 stores the day before each home game£4,000 a month
  2. 2Ask the retailer for more chiller space on match days£1,000 a month
  3. 3Remind store managers to fill the shelves by middaySupports 1

Total£5,000 a month

An illustration. The business, a fictional soft drinks maker, and every figure are invented.
01 On demand

Ask it a question

Between reports, send it a question. The same analyst works on your data with the same method and replies with a full report, to the same standard.

You, by email

Why did margin fall in the north last month?

Example reply

1.4 points of the fall come from one customer moving to the 6-pack.

Northern margin fell 2.1 points in September. Your largest wholesale customer moved 70% of its orders to the 6-pack, which earns 9p less a unit. The rest is the usual seasonal mix.

Source: sales_lines, September 2026. Script: margin_bridge.py. 14,212 rows.

Then forward the report as it stands, download the data behind any figure, take a single chart for your own deck or ask for the findings as slides.

02 How it starts

Not a dashboard. An analyst.

A dashboard waits for someone to look. This looks for you and says what it found.

  1. 01

    We connect your data

    Read-only. We do the setup and never hold a copy.

  2. 02

    It learns your business

    Your plans and targets, not a template.

  3. 03

    The answers arrive

    Every week, and whenever you ask.

03 The price

What you pay

The 3 stages of an engagement, with what each costs and its terms
StagePriceWhat you get
Scoping1 to 2 days, on siteFree if you go ahead with setupA visit to your premises to see where your data is kept and what your reports look like now. You get an AI agentic readiness report, which scores how ready your data and systems are for AI agents, and a scope for the connections the setup will build.If you do not go ahead, it is charged at £500 a day.
Setupfixed priceQuoted after scopingA small computer installed on your premises, your data connected and the scripts built to run on it. Any connector that has to be built is quoted on its own.
Runmonthly£1,500, £2,750 or £4,500 a monthWeekly, monthly and quarterly reports, and a full report in reply to each question you send. The tier depends on the analyses you need, the data behind them and how many questions you expect to ask, and scoping sets it in writing.

Monthly rolling. 30 days’ notice, no reason required. 10% off if you pay a year upfront.

04 The obvious question

Why not just connect ChatGPT or Claude to your data?

You can, and it works well. Tervisi is built on the same kind of model. But a subscription leaves you to be the analyst: to connect the systems, write and check the code and know your business’s rules. Tervisi is the analyst.

  • No unscripted numbers.

    Every figure is computed by a checked script, never written by the model, and the words are checked against the figures before you see them. A model on its own can state a number it never calculated, and nothing on the page tells you which.

  • It reads your strategy as well as your sales.

    Your strategy, board papers, plans and targets go in beside the figures, so the recommendations and the way each report is written fit the business you are trying to build.

  • It learns, from what it got wrong as well as right.

    It keeps every report and finding and learns how you like things put. When a finding turns out wrong, or you correct one, that is recorded and the next run reads it. It learns by keeping notes, never by training a model on your data.

  • It runs without being asked.

    Reports arrive every week, month and quarter, whether or not anyone remembers to ask. A chat answers the question in front of it and waits for the next one.

  • Built for you, at a fixed price.

    The connections to your systems, the pipelines that bring your data in, the computer and the scripts are built for you. Then one price a month, not a bill that grows with use, and nobody on your side has to keep it running.

  • An expert checks the work.

    An economist with more than 10 years in commercial analytics sets it up, reads the scripts and reviews every report for your first 6 to 8 weeks.

  • Read-only and private by design.

    It can read your systems and cannot change them. Tervisi never holds a copy of your data, the models run on UK or EU servers under zero-data-retention terms and every request is logged, so you can read what was sent.

  • Not tied to one model.

    It is built so the models behind it can be changed. As better ones arrive your reports get better, and you are never locked in to one provider.

How your data is handled sets out what the models see and what they never do.

05 Honestly

Where Tervisi is today

Tervisi started in October 2026. It has no clients yet, so there is no case study on this page. The first engagement is offered at cost, in return for the right to publish what it finds.

06 Questions

Questions

We already have dashboards. Why would we need this?

Dashboards tell you what happened and leave the thinking to you. This does the thinking: it tells you what to do and what it is worth, and keeps a record of what it recommended.

Consultants take the money and disappear. Why is this different?

Nothing is paid up front for advice. Scoping is 1 or 2 days on your premises and is free if you go ahead with the setup, which is a fixed price. After that it is monthly, and you can stop with 30 days’ notice, no reason required.

Our data is a mess. Is there any point?

Most commercial data is. Before you are quoted anything, the first call includes a 15-minute check on whether your cost data can support margin analysis, and you are told plainly if it cannot.

Is our data safe?

Tervisi never holds a copy of it. The work runs on a small computer installed on your premises, with read-only connections. The language models see the code, your column names and data dictionary, summary figures and draft reports, and rows of your data while a script is being fixed. They run on UK or EU servers under zero-data-retention terms, and every request is logged so you can read what was sent. How your data is handled sets out the detail.

It is one person. Is that a risk?

True, and it is why nothing is on a 12-month term.

Christian Turner-Bridger
Who runs it

Christian Turner-Bridger

Economist and econometrician by training.

More than 10 years in commercial analytics for large UK organisations.

Started Tervisi in October 2026 to give owner-managed businesses the same analysis, with the working shown.

Tervisi is one person, so I run every engagement myself, from the first connection to the last report.

Book a call

A free 30-minute video call, no account needed. You leave with a straight answer on whether Tervisi can help and, if it can, a date for the scoping visit.

Book a call