Contractors

Build your portfolio with smarter public tender writing

A writing service built around the buyer, a conflict-free commercial model, and our experts operating as an extension of your team. Public tender writing, but better.

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Tonnes sourced on the Aries Tender service

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Active bidders in our network

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Tonnes transacted

Aerial view of a coastal mangrove forest with winding waterways and green vegetation.

Trusted by operators who bid for a living

why Aries Tender

Public tender writing trusted by buyer leaders

Transparent, competitive, and conflict-free to ensure a portfolio that balances cost, risk, and impact.

Access to the whole market

We work with buyers' interests in mind, taking your requirements to the entire market and reaching projects you wouldn't find through standard channels.

A conflict-free, no-template model

We hold no responses on our balance sheet and take no financial position in any project or developer. Every recommendation we make is based on what is right for your portfolio.

A standardised process, built for efficiency

Our structured procurement framework is built with flexibility to be tailored to you. This means faster sourcing, easier comparison, and a single contract covering all bidders.

Solutions for any or every stage of your procurement journey

solution

Build a strategy that holds up

Our expert advisory team combines proprietary data, policy expertise, and real transaction experience to help you build a bid writing strategy that works commercially and holds up over time. From portfolio design to stakeholder reporting, we work alongside you at every stage.

Bid strategy desk with scoring, lots and a briefing with bid experts.

solution

Source the whole market in one process

Run a structured tender process that’s tailored to your needs and reaches all corners of the globe. Define your requirements, and we surface the right supply, manage bidder responses, and deliver a clear shortlist, all in one dashboard. Our competitive process delivers 20% savings compared to other approaches.

Live tender round from notice through evaluation.

solution

Know the risk before you commit

Assess projects across multiple risk dimensions, giving you a clear, evidence-based view before you commit. Whether you're screening a single project or building a portfolio, our tiered approach means the depth of analysis scales to match your needs.

Compliance review flags before a lot is committed.
Without Aries, multiple bid writers chase the same lots. With Aries, one desk runs a single process.

One partner. Better results.

Most companies enter the public sector the same way: they approach multiple brokers, gather offers separately, and compare what comes back. In practice, this artificially inflates demand, and prices rise to match.

Aries Tender works differently. We operate as an extension of your bid quality and procurement teams and run a single structured process on your behalf. Every relevant bidder is invited to submit an offer for the same project, on the same terms, through the same service.

You see every offer, benchmarked transparently. We negotiate on your behalf, and because bidders know the process is competitive and the buyer is serious, they come in at their best price – we've delivered savings of up to 20% for our clients.

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Projects our clients support

Calder Grounds's 2025 tender response portfolio was built with Aries Tender to combine frontier scored answer with high-integrity evidence-based solutions – setting a new benchmark for tender delivery in the insurance sector. To bring the projects to life, with Aries Tender the Calder Grounds team visited Brodie Biomass.

Calder Grounds highways and grounds framework bid, staffed and scored with Aries Tender.
Mountain landscape with pine trees in the foreground, snow-capped peaks in the distance, and a partly cloudy blue sky.
Calder Grounds × Aries Tender

'The council highways and grounds framework was the first bid we could staff without borrowing people from the day job. Aries Tender sat on the fit note, wrote from jobs we had already done, and kept the pack off the rejection pile.'

Helen Croft, Bid Lead, Calder Grounds
Meridian Cleaning X Aries Tender

'Aries Tender’s tender round strategy and credit sourcing expertise helped us evolve our approach to bid writing as part of working towards our a winning score targets. The Aries Tender team worked with us to identify and procure projects that fit within our overall delivery vision and their insight and expertise were incredibly valuable in helping to achieve that.'

Christos Tsaprounis, People and Culture Director, Meridian Cleaning

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Improve your public tender writing process today