Businesses build a bench of experts on call. Professionals build a book of clients. Tesserow is where the two sides find each other and work together without the friction: terms agreed once, every hour approved by both sides, no cut of anyone's rate.
Apply for the founding cohort Which side are you on?
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More and more. Plenty of companies already rely on a part-time CFO, bookkeeper, designer or engineer, and most fractional professionals serve several clients at once. Today that runs on a PDF, a spreadsheet and good faith.
Hiring sites help you find a stranger, and many take a cut of every hour. Tesserow is where you work with the people you already trust, and where both sides of fractional work can find each other. No bidding, no cut.
Keep your agreement for scope, IP and the legal terms. Tesserow holds the numbers from it (rates, weekly budgets, hour caps, dates). Both sides confirm them once, then work inside them.
The terms are entered once and confirmed by both sides, so the record matches what you agreed. Caps and end dates hold on their own; changing terms means new terms both sides confirm.
Retainers guess at the hours. Terms sit in a PDF nobody rereads. The real cost shows up at invoice time. Tesserow tracks the work as it happens, so the relationship can flex with it.
The contract sets the lines. Tesserow keeps them.
Rates, weekly budgets, hour caps and dates live in Tesserow, so both sides work inside the terms without rereading the agreement. The work itself stays between you.
Stop paying for the guess.
Every hour is signed by the person who worked it and confirmed by the business that asked for it. Hours are the proof. Outcomes are the point.
of fractional professionals serve three or more clients at once.
name balancing multiple clients as one of their biggest challenges.
What Tesserow takes from your rates. No broker in the middle.
Source: FRAK, The State of Fractional Report (2024), survey of fractional professionals.
Every client sits in the same planner, so a new commitment is checked against the hours you genuinely have left, not the ones you hope to find.
Work is logged while it happens and the client signs off along the way, so nobody rebuilds a month from memory when the invoice is due.
Planned, delivered, approved, invoiced: a signed, tamper-evident trail both sides can point to later. No screenshots, no activity scores; two people agree on every hour, and that agreement is the record.
We read every application and reply personally. If you don’t hear from us within two days, write to hello@tesserow.com.
Let AI handle the routine. People still sign. Connect your assistant to plan the week, log hours and draft invoices; it can propose, only a person can confirm, and the record shows which was which. Tesserow for agents