Site Samurai
Site Samurai is construction management software for UK contractors, bringing tendering, payment applications, RAMS, fleet, subcontractor and CIS workflows i…
What Site Samurai is
Site Samurai is construction management software for UK contractors, bringing tendering, payment applications, RAMS, fleet, subcontractor and CIS workflows into one platform. Commercial tools cover valuations, variations, early warning notices, final accounts and budget-versus-actual reporting. Safety functions include RAMS templates, AI-generated risk assessments, toolbox talks with sign-off, incident reporting, policies and audit trails. Its AI can also parse BOQs, find leads through Contracts Finder, analyse safety trends and identify hazards. Xero and Sage Business Cloud connect for two-way invoice, payment and contact synchronisation; Sage 50 desktop and Sage 200 are not supported. CIS checks happen on the HMRC portal, with results and deduction rates stored in the product. The companion app works offline on iOS 16+ and Android 10+, then syncs when back online. Starter is £99.00 per month; Professional is £199.00 per month; Enterprise is £699.00 per month, each billed monthly.
Good
- Combines commercial, safety, fleet and CIS workflows.
- AI can generate RAMS and toolbox talks.
- Mobile app works offline and syncs later.
- Xero and Sage Business Cloud synchronise key records.
Watch out
- No free plan is listed.
- Sage 50 desktop and Sage 200 are unsupported.
- CIS verification requires use of the HMRC portal.
Who it suits
It suits UK construction contractors managing commercial and safety processes alongside project work. Teams needing offline mobile access or Xero and Sage Business Cloud connections may find those capabilities relevant.
Verdict
Site Samurai brings several construction management workflows into one platform, with offline mobile access and AI tools among its listed capabilities. Check the supported accounting integrations and manual HMRC verification step against your team's process.
Plans and prices
From Site Samurai's own pricing page, checked 30 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Starter | £99 a month | Unlimited users · Unlimited projects · 25GB document storage · Applications for payment · CIS compliance · Monthly billing only |
| Professional | £199 a month | Unlimited users · Tender management · Purchase orders and GRN · RAMS and incidents · Xero and Sage integration · API access · 100GB document storage · Monthly billing only |
| Enterprise | £699 a month | Unlimited users · 16 enterprise-only capabilities · Unlimited AI generations · Unlimited document storage · SSO/SAML · Advanced audit logs · Dedicated account manager · SLA-backed support · Monthly billing only |
The facts
Each one read from Site Samurai's own pages, with the date it was checked.
What it does
- Accounting integrations
- Xero and Sage Business Cloud connect through OAuth for two-way invoice, payment and contact synchronisation; Sage 50 desktop and Sage 200 are not supported.checked 30 Sep 2026
- AI capabilities
- Site Samurai AI can generate RAMS, create toolbox talks, parse BOQs, discover leads from Contracts Finder, analyse safety trends and identify hazards.checked 30 Sep 2026
- CIS workflow
- CIS handling is in-product rather than through an HMRC API; users verify subcontractors on the HMRC portal and Site Samurai stores the result and applies the deduction rate.checked 30 Sep 2026
- Commercial management
- Commercial features include tender management, applications for payment, valuations and variations tracking, early warning notices, final accounts and budget-versus-actual reporting.checked 30 Sep 2026
- Data location
- The pricing FAQ states that customer data is stored in UK data centres and that the service is UK GDPR compliant.checked 30 Sep 2026
- Product purpose
- Site Samurai is construction management software for UK contractors covering tenders, applications for payment, RAMS, fleet, subcontractors and CIS in one platform.checked 30 Sep 2026
- Safety management
- Health and safety tools include RAMS templates, AI-generated risk assessments, toolbox talks with sign-off, incident reporting, policy management and audit trails.checked 30 Sep 2026
- Security
- The privacy policy states that data is encrypted in transit and at rest and that the company uses access controls, authentication measures, regular security assessments, penetration testing, staff training and incident response procedures.checked 30 Sep 2026
- Support
- Starter includes email support with 24-hour response times, Professional includes priority email and phone support, and Enterprise includes a dedicated account manager with SLA-backed support.checked 30 Sep 2026
- Target customers
- The company says it is working with its first 10 UK construction companies and describes the product as built by people with civils and contracting experience.checked 30 Sep 2026
- Uptime
- The features page advertises 99.9% uptime.checked 30 Sep 2026
The company
- Founded
- 2024checked 28 Sep 2026
Where it runs
- Mobile app
- The companion app supports iOS 16+ and Android 10+, works offline, synchronises when back online and is free with all plans.checked 30 Sep 2026
Alternatives to Site Samurai
- 1
SpendMap
Free planAndroidiOSWebAPI7.9From $15 a month - 2
Tradogram
AndroidiOSWebAPI7.8From $950.40 a year - 3
ProcurementExpress.com
AndroidiOSWebAPI7.7From $415 a month - 4
TREX Grow
Free planWeb7.4From $40 a year - 5
Numbris Purchase & Suppliers
AndroidiOSWebAPI7.1From $25 a month - 6
Kissflow
AndroidiOSWebAPI7.0