Every payment
under control.

Senedra reads your bespoke subcontract: the standard form and every Z-clause bolted on top. It builds the register your commercial team runs the job from, every line quoted word for word with its clause and page.

The problem

Margin doesn’t vanish. It’s disputed away.

The variation nobody wrote down. The notice that went in late, and took the right to be paid with it. The proof that isn’t there.

£8.4bn
held in retentions across UK construction
DBT Impact Assessment, 2026
18 months
how long a 12-month retention is actually held
BEIS / Pye Tait, 2017
1 in 7
invoices from large construction firms is paid late
DBT, 2025
£383,000
lost by the average large contractor to insolvency upstream, in three years
DBT Impact Assessment, 2026
£308m
owed to ISG's trade creditors. Nothing is expected back.
EY administrators, 2024

Your retention sits with the firms above you, held longer than the contract says. Senedra gets it on paper from day one, so the record is already there when it matters.

How it works

It finds and cites. You decide.

It pulls the terms out of the contract, word for word, and ties each one to its clause and page. What it can’t quote, it flags.

01
Subcontract
redacted PDF + amendments
02
Read & cite
every term → clause + page
03
Human review
your team confirms
04
Control register
every line cited, locked
05
Export
Word · Excel

If it can’t quote the clause, it doesn’t go in the register.

Solutions

One read.
The job under control.

No quote, no row. Watch one read of the contract become the register, start to finish. Tap any name to jump to it in the film.

01 Senedra Read

Know what you signed, including the Z-clauses.

02 Senedra Control

Get every variation and notice on paper as it happens.

03 Senedra Proof

Walk into the final account with the contemporaneous records already attached.

Who it's for

Whoever’s on the job.

It’s built for subcontractors and their QSs first. Main contractors and employers run the same registers on the same job.

Subcontractors

“The variation agreed on site that never got written down.”

Capture every variation and notice with the proof, and reach the final account with it already in hand.

Main contractors

“Thirty sub-packages, every one amended differently.”

Control the packages you let, from variations and notices to retention, and reach every final account faster.

Clients & employers

“The final account lands, and the proof is a filing cabinet.”

Oversight without the spreadsheet: validate the final account, release retention on time, prove compliance.

  1. 01 · Instruction

    A change is instructed on site.

  2. 02 · The clause

    The register already holds the term that governs it, quoted word for word.

    61.3 · p.22
  3. 03 · Variation

    It’s recorded as a variation, with its evidence kept alongside.

    VO-014 · CAPTURED
  4. 04 · Notice

    The window the contract sets is shown for visibility. Your QS owns the date.

    “…notify within 8 weeks…”
  5. 05 · Money

    Applied, certified and paid line up from your own records.

    APPLIED · CERTIFIED · PAID
  6. 06 · Review

    The monthly review shows what moved, what aged, and where evidence is thin.

Contract tools explain the contract. Project platforms hold what happened on the job. Senedra joins them up: the clause, the change, the evidence and the payment position sit in one register.

Everything in the register comes straight from the contract.

Every line is quoted word for word and cited to its clause and page. If it can't quote the clause, it doesn't go in the register.

Questions

Asked on every call so far.

How long does it take?+

The read takes a couple of minutes. Human review takes your team an hour or two, far less than reading 60 pages cold.

Which contract forms does it read?+

It reads NEC4 (validated on a real package), plus JCT and FIDIC, and it's tested against contracts we marked up by hand. The changes the other side made to the standard form (Z-clauses, Particular Conditions) are read and cited too.

How is this different from a general AI assistant?+

A general assistant will answer anything, backed up or not. Senedra only keeps what it can quote from your contract, and a person checks every item before it goes in the register.

What about amendments or bespoke clauses?+

Upload them. They’re read and cited like the rest; anything unusual is flagged for a person to decide, never assumed.

Can it check a payment application?+

It lines up what you applied for, what was certified and what was paid, from your own records, and shows where the numbers part company. What you do about a gap stays with you and your QS.

Where does my contract go?+

Your contract is processed locally, never used to train any model, and not kept unless you ask. During the pilot we ask you to redact first.

What if it misses something?+

Human review is the backstop. Uncertain items wait in a review queue for you to confirm; nothing enters the register unseen.

What does the pilot involve?+

You send one subcontract, real or anonymised. We run it, show you the register, and tell you honestly if it fits. No pitch, no commitment.

What is it, and what isn’t it?+

It is a record where every item is quoted word for word from your contract, with the clause and page next to it: a clean foundation for control and dispute preparation. It is not legal or QS advice, and it won’t issue notices, calculate entitlement, or claim money for you. The decision and the risk stay with you.

Does it replace my QS?+

No. It's a clean, cited starting point for your QS or commercial team, not a substitute for their judgement, and not legal or QS advice.

Pilot places

See it on your own contract.

Run one job through it. Send a contract, closed job or live, and see the register it produces. No pitch, no commitment.

Book a demo

We’re inviting a small group of commercial teams to run Senedra against their own contracts. No customer logos yet, by design; we’d rather earn them than borrow them.