- Home
- Purchase Order Software
- Site Samurai
Site Samurai
What it is
Site Samurai is construction management software for UK contractors, bringing together work on tenders, applications for payment, RAMS, fleet, subcontractors, and CIS. Commercial tools cover valuations and variations tracking, early warning notices, final accounts, and budget-versus-actual reporting. Health and safety functions include RAMS templates, AI-generated risk assessments, toolbox talks with sign-off, incident reporting, policy management, and audit trails.
Site Samurai AI can also parse BOQs, find leads from Contracts Finder, analyse safety trends, and identify hazards. 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. For CIS, users verify subcontractors on the HMRC portal; the product stores the check result and applies the deduction rate. The companion app works offline on iOS 16+ and Android 10+, then synchronises once it is back online. It is included with all plans. Starter costs £99.00 per month, Professional £199.00 per month, and Enterprise £699.00 per month, all with monthly billing. There is no free plan, but a 14-day trial is offered. The pricing FAQ says customer data is stored in UK data centres.
For and against
For
- Includes tender and payment-application tools.
- Safety features include RAMS and incident reporting.
- Mobile app works offline and syncs later.
- Xero and Sage Business Cloud support two-way synchronisation.
- A 14-day trial is available.
Against
- No free plan is offered.
- Sage 50 desktop and Sage 200 are unsupported.
- CIS checks require use of the HMRC portal.
- Starter costs £99.00 per month.
The verdict
Site Samurai covers commercial, safety, and CIS workflows for UK contractors, with an offline mobile app. Note the monthly plan costs and the manual HMRC portal step for CIS checks.
Who it suits
Site Samurai is for UK contractors seeking commercial, safety, and subcontractor workflows in one construction management product. Its offline companion app may suit teams working where connectivity is intermittent.
Plans and prices
Starter
Unlimited users · Unlimited projects · 25GB document storage · Applications for payment
Read 30 Sep 2026 · sitesamurai.co.uk
Professional
Unlimited users · Tender management · Purchase orders and GRN · RAMS and incidents
Read 30 Sep 2026 · sitesamurai.co.uk
Enterprise
Unlimited users · 16 enterprise-only capabilities · Unlimited AI generations · Unlimited document storage
Read 30 Sep 2026 · sitesamurai.co.uk
On the record
- 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.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 30 Sep 2026
- Mobile app
- The companion app supports iOS 16+ and Android 10+, works offline, synchronises when back online and is free with all plans.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 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.sitesamurai.co.uk · read 30 Sep 2026
- Uptime
- The features page advertises 99.9% uptime.sitesamurai.co.uk · read 30 Sep 2026
