For fit-out and package contractors

Your company, faster and more capable.

One place for estimating, site, documents and money, with AI trained on how your business already works. Your team keeps doing what they're good at. The paperwork, the chasing and the retyping stop.

Start with discovery Try the live demo

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Siteliner dashboard: contract value, committed and paid spend, running and projected margin, and budget versus paid per project

Live platform· click to explore

See the programme

Every job on one timeline, with how far along it really is.

Stages, dates and this week's site progress for every live project. Open a job and the tracker shows what's done, what's late and what's next.

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Siteliner project tracker Gantt: ten live jobs with progress bars by month

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Siteliner estimating agent: a tender pack on the left, the agent's scope summary and questions in the conversation

Ask, and it's drafted

Drop in a tender pack. Get back the scope, the quantities and the questions.

The estimating agent reads the drawings, specification and schedules, drafts the cost sheet in your format and lists what it still needs. Your estimator checks and prices instead of typing.

Made for fit-out contractors, not adapted to them

The parts of the job that generic tools never quite fit.

Estimate → cost sheetPackage by package, in your own sheet format, from the tender pack.

Call-offs → POs → invoicesOrders grouped per supplier, deliveries marked from the phone, invoices matched.

VariationsCaptured on site, priced, chased and approved with the evidence attached.

RAMS, CPP and O&MGenerated from the job record in the formats your clients already accept.

SnaggingOne list per walk, before and after photos, report by location or supplier.

Margin, liveCommitted, paid and available per project, with a warning before the money is gone.

The AI is only as good as what it's trained on. That's our job.

Most AI projects fail on the input, not the model. We spend the first weeks on your documents so the output is right first time, in your format, with your terms.

Not a generic assistant that knows about construction. One that knows how your company does it.

Your library. Supplier data sheets, COSHH, certificates, past projects: cleaned, classified and indexed so the agents cite the right document, not a similar one.
Your formats. Cost sheet, RAMS master, O&M template, client pricing schedules. The agents produce those, not a new version of them.
Your delivery process. How a job moves from won to handed over in your business, so every generated document lands in the right place at the right stage.
Tested against your own past output. We run the agents on jobs you've already done and compare, before they touch a live one.

Built by someone who has run the operation

Not a software vendor guessing at the workflow.

Mauricio SimónFounder, Siteliner

Industrial engineer by training, I've spent more than seven years designing processes and products for operations that have to scale. As CEO of a 180-person service company I lived the problem this platform solves: good people, real work, and information scattered across tools that never talked to each other.

Siteliner is that experience applied to construction. I work directly with your team: I map how your jobs actually move, load your documents and formats, and build the agents around them, one process at a time, until the system runs the paperwork and your people run the work.

"The answer isn't more admin staff. It's a system that already knows how your company works."

Operator, not just a developerRan and scaled a business before building software for one.

Process and product in oneThe workflow is designed first; the software follows it, not the other way round.

Embedded, not a vendorWorking sessions with your team every week while each process beds in.

How we work with you

A service, step by step. You never take on more than the next process.

Step 1Discovery

Half a day with the people who run your jobs. We map how work moves today, collect your documents and pick the first process worth fixing.

Step 2Set-up

Your own private workspace, your branding, your formats and library loaded. The agents trained and tested on your past jobs.

Step 3First live job

Run one real job through it alongside your current way. Fix what's off. Nothing switches until it's better.

Step 4One process at a time

Estimating, then documentation, then site. Two working sessions a week with your team while each one beds in.

OngoingIt grows with you

New capability lands in your workspace as your business needs it. What we build for you stays yours.

Security, in plain terms

Your company's data sits in its own environment, on infrastructure that publishes its audits.

Private to your company

Your own database, file storage and login. Nothing is shared with another company's workspace.

Encrypted in transit and at rest

TLS on every connection. Stored data and secrets encrypted, with a separate key per company.

Hosting: Vercel (SOC 2 Type 2, ISO 27001) and Railway on Google Cloud (SOC 2 Type 2, GDPR).

Built for agents, not just chat

The AI works inside your workspace: it reads your documents and writes into your boards under the same rules as a person, so nothing issues or moves money without approval.

Roles and approvals

Access by role. Anything that issues a document or moves money needs a person to approve it.

Only admins delete

Deleting is an admin-only action across the platform, and generated documents keep their previous revision.

Yours to keep

Your data, your documents and the agents trained on them belong to your company. Leave, and you take them with you.

Start with a discovery session

Half a day, with your own tender pack and your own documents. You leave with a clear first step, whether or not you go ahead.

Book discovery — hello@siteliner.ai