Simply manage project spending

Approve purchase order requests, track supplier spending and analyse purchasing data in one simple place: ONSO.

ONSO procurement software dashboard. Automated Purchase Order system used by construction project managers and onsite teams for real-time order tracking and project cost control.

Effortless purchase order requests from site to supplier

ONSO streamlines the process of requesting purchase orders from the site to the supplier. With ONSO, users can easily create and submit purchase order requests without the need for manual intervention or paperwork. This eliminates the need for time-consuming and error-prone manual processes, resulting in faster and more accurate procurement of goods and services.

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OUR SOLUTION

We deliver results

Clear, measurable improvements that make purchasing simpler, faster, and more accurate for every project team.

750+

Number of hours saved

ONSO removes repetitive admin, helping teams cut paperwork and focus on getting the job done on site.

2000+

Number of orders placed

From small requests to major orders, ONSO keeps everything organised in one easy-to-track platform.

£15,000

Saved per year for our clients

By reducing delays, duplicate orders, and costly mistakes, ONSO helps businesses protect budgets and boost profitability.

100%

of clients recommend us

Our customers value how simple ONSO makes ordering materials — delivering smoother workflows and better supplier relationships.

HOW IT WORKS

Supply chain solutions for all users

Our software, ONSO, is designed for everyone in the supply chain, not just accountants. It's user-friendly and helps anyone streamline their operations.

Site operative

Materials requested by the site operative

Site operative on a construction site using the ONSO app to submit a materials request, enabling fast, paperless procurement directly from the job site.

Project manager

Order created and manager by the project manager

Project manager reviewing and managing Purchase Orders on a tablet, demonstrating ONSO's centralized control over project spending and budget adherence.

Supplier

Order sent to the supplier to fulfill the order

Supplier receiving a digital Purchase Order from ONSO on a tablet, streamlining order fulfillment and improving supply chain communication for construction materials.

Finance and accounts

Order completed and invoice is matched

Finance team member matching completed orders and invoices using ONSO's automated system, eliminating manual data entry and speeding up financial reconciliation.
XERO accounting software company logo

Seamless integration with Xero accounting software

Our latest update brings seamless integration with Xero, helping you avoid errors, sync purchase orders, match invoices, and keep your accountant updated in real time—making financial management simpler, faster, and more transparent.

ONSO and Xero integration
Supplier receiving a digital Purchase Order from ONSO on a tablet, streamlining order fulfillment and improving supply chain communication for construction materials.

Learn more about ONSO

Learn how ONSO simplifies processes, saves money, and drives efficiency for businesses across the construction industry and beyond.
All ONSO resources
Satisfied business owner or project manager using ONSO on a laptop in a modern office, highlighting efficiency and control over financial management and procurement.

Success stories

Read about real clients, their challenges, and how ONSO streamlined their purchasing, giving them back time and control.

Our success stories

ONSO news

Get the latest industry perspectives, tips on financial management, and helpful insights on optimizing your business operations.

News and insight

Next up at ONSO

Stay informed on new ONSO features, integrations (like Xero!), and product updates designed to make your day-to-day even smoother.

Coming soon...

ONSO product news

Our success stories

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All success stories
Smiling business owner or finance executive in a modern warehouse environment, representing the financial control and efficiency gained through ONSO's automated accounting software.

"Overall, ONSO has given us more control, better insight, and improved efficiency than we’ve ever had before."

Holly Fox
Lead Buyer, Brandwells
Read success story
Experienced construction manager or project director holding a tablet on site, illustrating how ONSO provides real-time digital procurement and cost management for field operations.

"I’d highly recommend ONSO to any company looking to streamline their operations and empower their team with the right tools."

Richard Rainford

Procurement Manager,
Weststone Construction Ltd

Read success story

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