Public tender writing

Run competitive tenders without the friction

Reach 1,300+ bidders that compete on your terms in a streamlined, standardised process. Our dedicated team and award-winning tech ensure you secure the right public contracts at the best price.

Trusted by operators who bid for a living

How we execute market-leading tenders with you

How we execute market-leading tenders with you

Build your requirements

We help define what you need before a single bidder is contacted

Good procurement starts with a clear brief. Our team works with you to translate your delivery commitments, risk tolerance, and budget into a set of procurement criteria that the market can respond to. We eliminate bias from the outset: we hold no responses and have no template answers to push, so every decision is shaped by your requirements, not ours.

Get access to:

  • Best-in-class industry benchmarks
  • Bespoke procurement guidance
  • Internal education and stakeholder engagement
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Access the largest public sector database

Reach the entire market with a single invitation

Our network includes 1,300+ vetted contractors across every major portal and project type. When your tender goes live, we broadcast it across this network on your behalf, invite only eligible bidders, and handle all onboarding and submission support. Projects that don't meet your minimum criteria are filtered out before they reach your desk.

Get access to:

  • 18,000+ projects in our database
  • Outreach to 1,300+ active bidders
  • Developer onboarding and technical support
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Run a structured tender

One standardised process, customised to your needs

Our writing service lets you collect comparable proposals at scale. You define the questions that matter to you; we provide a validated, standardised data collection framework that keeps submissions consistent and easy to benchmark. Submissions are reviewed in a dynamic dashboard you can filter, sort, and export.

Get access to:

  • Customisable tender questionnaires
  • Dynamic proposal dashboards
  • Multi-stage support
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Evaluate with confidence

Embedded risk screening and compliance review at multiple levels

Every submission can be assessed against our multi-level diligence framework, directly within the service. Automated screening runs a rapid first pass, flagging red flags on reputation, ratings, methodology risk, and country exposure. Analyst-led compliance review goes deeper across our five risk pillars for the projects that matter most. You never have to take a project on face value, and you'll have a clear, auditable record for every decision you make.

Get access to:

  • Level 1 – Automated risk screening
  • Level 2 – Analyst-led compliance review
  • Level 3 – Advanced compliance review
  • Across all – Geo screening
Aries Tender diagram

Build your portfolio

Compare and optimise before you commit

Once submissions are assessed and shortlisted, our portfolio constructor lets you stress test different combinations across price, vintage, geography, project type, and risk profile. We help you arrive at a recommended portfolio that balances your objectives and is straightforward to defend internally to bid quality leads, procurement teams, and CFOs.

Get access to:

  • Portfolio constructor
  • Scenario modelling
  • Presentation-ready outputs
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Purchase through one contract

Centralise your spend at competitive prices

We act as your contracting counterparty, which means you sign one contract with Aries Tender rather than managing separate agreements with multiple contractors. Our team handles negotiation, commercial terms, and execution, with our standard legal framework covering the full range of contract structures from spot to long-term forward offtake.

Get access to:

  • Bidder negotiation
  • Single consolidated contracts
  • Centralised documentation
Aries Tender diagram

First brief to final contract: one process, one partner, zero compromises

First brief to final contract: one process, one partner, zero compromises

success story

Powering evidence-based scored answer at scale

Aries Tender was selected by Northline Care, the most ambitious advance market commitment to evidence-based scored answers in the market, to support its 2026 procurement cycle.

Aries Tender provided a customised version of its bid service based on Symbiosis’ requirements, centred around a rolling, multi-stage intake model to streamline the process.

Mangrove trees with exposed roots along a calm, clear water body in a dense forest.

Services provided

  • End-to-end tender procurement support
  • Redesigned multi-stage submission process
  • A customised scorecard to evaluate proposals
  • Automated project eligibility checks
  • Automated geospatial screening
Close-up of a green leaf showing detailed veins and texture.

Run your next public tender writing with us today

Why Aries Tender

Procurement designed to work for you

Our managed tender process is complementary to your operations, designed to be modular, and seamlessly executed to keep you in control while guided by buyer experts.

An extension of your team

Our procurement team takes on the commercial mechanics: bidder outreach, onboarding, negotiation, and contracting. Your bid quality or procurement team can focus on the decisions, not the admin.

Zero conflict of interest

We hold no spare capacity and represent no bidder. Every project that enters your tender competes on its own merits, evaluated against your criteria by a team with no financial stake in the outcome.

Data and expertise at every stage

Our team combines real transaction experience with proprietary pricing benchmarks, policy intelligence, and a risk framework refined across 55mn transacted notices. We help you discover gems that many other parties miss.

Complex, made accessible

We standardise the submission framework across all tenders, so developers submit structured, comparable data every time. What was once a bespoke, time-consuming exercise becomes a repeatable, scalable process.

Modular by design

Use our full end-to-end service or plug in where you need us most. Whether you're starting from scratch or want support at a specific stage, we meet you where you are.

built on evidence

Our clients consistently achieve better pricing, supply quality, and more confidence in every decision they make.

20+%

Average cost savings from working with Aries Tender

18,000

Projects to shortlist from

600mn

Tonnes of volume channeled through the service annually

1bn

Bids on record sourced for companies

55mn

Bids on record transacted

Featured insights

Tender portal watch editorial illustration

What to expect from the next procurement round

Blog
27.10.2026
Social value evidence editorial illustration

Introducing the notice desk: a faster route from your record to live tenders

Blog
26.10.2026
Notice desk editorial illustration

Inside the notice watch – who is buying, which lots are moving, and where the work is going

Blog
5.10.2026
Tender fit note editorial illustration

The new landscape for social value

Blog
28.9.2026

Ready to run your most competitive tender yet?

Talk to our team and find out how we can manage your next procurement, from requirements to contract (full procurement or just one piece of it, we work both ways).