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Terms & Conditions

These terms govern your use of the Decisimo Decision Management Platform at portal.decisimo.com, whether you are on a trial or on a paid plan.

Last updated: 1 August 2026

Who these terms are between

These terms (the "Terms") form an agreement between Decisimo Ltd, a private limited company registered in England and Wales under number 12245746, whose registered office is at 20–22 Wenlock Road, London N1 7GU, United Kingdom ("Decisimo", "we", "us"), and the legal person for which the account is opened ("you", the "Customer").

Who may open an account

Decisimo contracts business to business. An account may be opened only by a body corporate, partnership or other legal person acting in the course of its trade, business, craft or profession. We do not contract with consumers, and the platform is not offered to an individual acting wholly or mainly outside that course. If you are not signing up for a legal person, you may not open an account.

  • You sign up as its representative. Whoever opens the account does so as an authorised representative of the Customer and warrants that they have the authority to bind the Customer to these Terms. Where that authority is absent, no licence is granted.
  • Business email. Registration requires a business email address on a domain the Customer controls. We may refuse or close an account registered with a free, personal or disposable address.
  • Competitors. We may refuse or close an account held by, or opened for or on behalf of, a competitor of Decisimo.
  • Genuine use. An account is for using the product. Where we establish that one was opened for market or competitive research, for benchmarking, or for any purpose other than genuine use of the platform, we may cancel it and return the fees paid.
  • Our discretion. We may decline a registration, or cancel an account, at any time and for any reason. Where we cancel for a reason other than your breach of these Terms, we refund the fees you have paid for the unused part of the period in progress.

What these Terms cover

These Terms apply to every account opened through the portal, on a trial or on a plan published on our pricing page.

Where you and Decisimo have signed a separate licence agreement or order form, that document governs and these Terms apply only where it is silent. Enterprise plans are contracted under a signed agreement.

The platform

The platform provides tools for building, managing and executing decision logic:

  • Rule sets, decision tables, decision trees, scorecards and the decision flows that connect them
  • Testing tools for checking that decision logic behaves as intended
  • The AI Decision Designer, which drafts and refines decision logic from your objectives and inputs
  • Connections to your data sources over REST and SOAP
  • Integration of externally hosted machine learning services and large language model providers over their APIs
  • Execution endpoints for deploying and running decision flows

Self-service plans run on shared, regionally distributed execution endpoints, and once a paid plan starts you choose which of those regions yours run in. Dedicated (single-tenant) endpoints, private or on-premise deployment, and a contractual commitment that your data stays resident in a named region, are Enterprise arrangements and are not included unless your plan or signed order says so.

Documentation for the platform is available inside the portal.

Licence and access

Decisimo grants you a non-exclusive, non-transferable, revocable licence to access and use the platform for your internal business operations. On a paid plan the licence is granted at the moment payment is received and runs for the period that payment covers; it is renewed by each subsequent payment. Access is provided through the web interface and the API.

Users, rule sets, decision flows, models, versions and API endpoints are not metered. Use must be for genuine business purposes and at a level consistent with normal business need. We monitor usage and may limit or suspend an account whose usage is materially outside that or breaches these Terms.

You control who has access, and anyone with access to your account acts for you. That covers building, changing and publishing decision logic, calling the API and running decisions that count towards your plan. We act on what is done through your account and are not required to check whether a particular person was authorised inside your organisation. You are responsible for all activity under your account, for keeping credentials secure, and for removing access when someone no longer needs it.

The platform is provided as it stands. These Terms do not entitle you to future upgrades, updates or enhancements, although we may provide them. We may update or modify the platform to improve functionality, user experience or security, and will give reasonable advance notice of any major change likely to materially affect how you use it. If we discontinue the platform or a key feature, we will aim to give a reasonable period of notice and, where we can, reasonable support to limit the impact on your operations.

What you may not do

You may not:

  • Use the platform for any unlawful or unauthorised purpose
  • Sublicense, resell, rent, lease, transfer or otherwise make the platform available to a third party
  • Modify, reverse engineer, decompile, disassemble or otherwise attempt to derive the source code, underlying ideas or algorithms of the platform, except to the extent the law permits it
  • Use the platform or our confidential information to build a derivative work or a substantially similar service. Independent development that does not use our confidential information is permitted
  • Circumvent metering, rate limits or access controls, or share account credentials outside your organisation

Plans, fees and payment

What you pay depends on the plan you choose. The plan fee, the volume of decisions it includes and the rate charged above that volume are the ones stated for your plan on the pricing page when you subscribe, or in your order confirmation or signed agreement where there is one. Those documents carry the numbers; these Terms carry the mechanics:

  • A decision is one execution of a decision flow through an execution endpoint. It counts once regardless of how many rules it evaluates, models it scores or data sources it calls. Retries we initiate ourselves are not counted.
  • The decisions included in your plan are counted per calendar month and do not roll over. Decisions above that volume are billed at your plan’s rate.
  • We invoice on the billing cycle of your plan. Each invoice sets out the plan fee and any usage above the included volume, which is invoiced in arrears on that same cycle. Payment is due within fifteen (15) days of receipt.
  • Billing queries. If you think an invoice or the metered decision count is wrong, tell us within thirty (30) days of the invoice date and we will check it. Amounts not queried within that window are treated as accepted. Querying part of an invoice does not delay payment of the rest.
  • All amounts are exclusive of tax. You are responsible for any applicable taxes other than Decisimo’s income taxes. If the law requires you to withhold tax from a payment, you will increase the amount paid so that we receive what we would have received without the withholding.
  • Currency and payment method. Fees are charged in the currency shown on your invoice. Where you pay by card or another automatic method, you authorise us to charge that method for the plan fee and for any usage above the included volume, on each billing cycle, until the plan ends.
  • Payments are made in full, without set-off, counterclaim or deduction, apart from any deduction the law requires.
  • We may charge interest on overdue amounts at the rate set by the Late Payment of Commercial Debts (Interest) Act 1998, together with the reasonable costs of recovering them.
  • The plan fee and per-decision rate that apply to you are fixed for twelve (12) months from the day your paid plan starts. After that we may revise them on at least sixty (60) days’ notice. You may accept the new prices or terminate with effect from the date they take effect; continued use after that date is acceptance.
  • A change of plan takes effect from the next billing period unless we agree otherwise. Where you move to a larger plan mid-cycle, the difference is charged pro rata.
  • Annual commitment. Where you choose a plan with an annual commitment, you are committed for the full twelve (12) months of that term. Subject to the thirty-day window below, it cannot be cancelled or reduced part-way through, and the fees for the whole term remain payable whether they are billed up front or in instalments; the thirty (30) days’ notice in section 13 does not shorten it. If an instalment is missed, access ceases as set out below and the remaining fees for the term stay due. The term renews for a further twelve months unless either party gives notice at least thirty (30) days before it ends.
  • Thirty days to change your mind. Within the first thirty (30) days of an annual term, including a renewal term, you may end the commitment on written notice. We then re-rate the time you have used at the standard monthly price of your plan, refund the balance of what you have paid, and your account continues on a monthly plan or closes, as you prefer. The commitment binds only after those thirty (30) days.
  • Payment is what keeps the licence alive. The licence is granted when a payment is received and covers the period that payment pays for. If a payment is not made when it is due, this agreement is treated as ceased, and what follows runs to a fixed timetable, with no notice needed from either party:
    • Five (5) days of grace from the due date, during which access continues as normal.
    • Then the account is frozen. Access stops and nothing runs, but everything you have built is kept intact.
    • Then, if the account is still unpaid thirty (30) days after it was frozen, we delete its content.
    Paying during the grace period or the freeze brings this agreement back into effect from the moment the payment reaches us, with the account as you left it. After deletion, a later payment starts a new and empty account. Fees already accrued, and the fees for a committed annual term, remain due at every stage of this timetable.

Trial accounts

A trial is free of charge, needs no payment card and exists so that you can build and validate your use case before committing. Trials run on our European execution endpoint, so data sent to an endpoint during a trial is processed in the EU; choosing a region comes with a paid plan, and moving a decision flow to another region afterwards does not mean rebuilding it. Trial accounts are provided as they stand, and the support in section 9 is for paid plans. We may change trial limits, or suspend or close a trial account, at any time. When a trial ends you can subscribe to a plan; if you do not, the account is closed and its content deleted.

Support

On paid plans, technical support is provided by email. Service requests can also be raised inside the portal through the "Contact us" link, which opens a ticket. Current platform status is published at decisimo.statuspage.io.

We give at least 48 hours’ notice of scheduled maintenance and schedule it to limit the impact on you.

These Terms carry no committed response time, no uptime commitment and no service credits. Contracted support response times and a service level agreement are available under an Enterprise agreement.

Intellectual property and feedback

All intellectual property rights in the platform, including in any update or modification, are and remain ours. You acquire no rights in the platform other than the licence in section 5, and these Terms transfer no ownership or proprietary interest.

If you send us feedback or suggestions about the platform, we may use them without compensation or any obligation to you.

Your data

Data processing terms. Where we process personal data on your behalf, including the payloads you send to an execution endpoint, we do so as your processor and on the terms of our Data Processing Agreement, which forms part of these Terms. For our own account, billing and security records we act as controller, as described in the privacy policy. Where the two documents differ on a data protection question, the Data Processing Agreement governs.

Your logic and your results are yours. The decision logic and configuration you create, and everything generated through the platform — decision outputs, reports and analytics — are your property. We access them only as far as we need to in order to provide the service, or as you permit in writing.

Endpoint payloads are not retained. The data you send to an execution endpoint for evaluation passes through to produce the decision and is not kept on our side. Access logs, performance logs and usage metrics are retained so that the service can be operated and billed. Keeping the evaluated data for your own audit or record-keeping is your responsibility.

Account data. We process the account data of your people — names and business email addresses — to deliver and improve the service, and for nothing unrelated to it. Both parties comply with applicable data protection law, and we apply technical and organisational measures appropriate to the risk. What we collect and how long we keep it is set out in the privacy policy.

Telling your people. Activity in the portal is logged. You are responsible for informing and training the people you give access to, particularly where they use the portal from outside your offices.

Breach notification. If a personal data breach occurs we will notify you without undue delay and in any event within seventy-two (72) hours of becoming aware of it, and will work with you to remediate it. Statutory notifications to affected individuals or to a data protection authority are yours to make.

Subprocessors. We use subprocessors, maintain a list of them which is available on request, and will notify you of material changes to it.

Audit. You may audit or inspect our compliance with this section on reasonable notice and subject to confidentiality.

Confidentiality

Each party may disclose to the other information relating to its business that it treats as confidential — technical, financial, customer and product information, plans, forecasts, algorithms, know-how, processes and the like ("Confidential Information"). The receiving party will hold it in confidence, take reasonable precautions to protect it, use it only for the purposes of these Terms, and not disclose it to any third party or reverse engineer it.

This does not apply to information the receiving party can show by written evidence is or becomes public other than through its own act or omission, was already in its possession, was received in good faith from a third party, or was independently developed by people with no access to the disclosing party’s Confidential Information.

On written request, the receiving party will return or destroy the other’s Confidential Information and confirm that it has done so. A party compelled by law to disclose may do so, giving the other reasonable prior notice unless a court forbids it. These obligations survive termination in respect of information disclosed before it.

Term and termination

These Terms start when you open an account. On a paid plan the licence runs period by period: each payment grants it for the period that payment covers, and a period that is not paid for ends this agreement at the end of the period already paid for, as set out in section 7. A later payment brings it back into effect.

Subject to any annual commitment under section 7, either party may also terminate on thirty (30) days’ written notice, with a paid plan running to the end of the period already paid for. Either party may terminate on written notice if the other materially breaches these Terms and fails to cure the breach within fifteen (15) days of written notice of it.

On termination or expiry:

  • We deactivate your access to the platform.
  • Payment obligations accrued up to the date of termination remain due.
  • On request within thirty (30) days, we export the decision logic you built as a human-readable Markdown file, at no additional charge.
  • We delete the data stored or processed on your behalf, including decision strategies and associated logs, in line with applicable law. Where the agreement has ceased only because a payment was missed, the grace, freeze and deletion timetable in section 7 applies instead.
  • Confidentiality, intellectual property, liability and any other provision that by its nature should survive, continue in effect.

A merger, acquisition or sale of a significant part of our assets does not affect these Terms or your right to use the platform; the acquiring entity assumes our rights and obligations.

Liability

We warrant that we will provide the platform with reasonable care and skill. Beyond that warranty the platform is provided as it stands, and to the extent the law allows we disclaim all other conditions, representations and warranties, whether express or implied.

Neither party limits or excludes its liability for death or personal injury caused by its negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot be limited or excluded by law.

Subject to that, neither party is liable to the other for indirect, consequential, special, incidental, punitive or exemplary loss, or for loss of profit, revenue, business, anticipated savings or goodwill, however arising.

Subject to the same, each party’s total liability for all claims arising out of or relating to these Terms is limited to the fees payable for the month in which the claim arose — which, for a trial account where no fees are payable, is nil.

Two things sit outside that monthly cap. Your obligation to pay fees when they fall due, the indemnity below, your breach of confidentiality and your infringement of our intellectual property rights are not capped at all. Our own liability for breach of confidentiality or for infringing your intellectual property rights is capped at the fees payable in the twelve (12) months before the claim, rather than at one month.

If a third party claims that the platform infringes its intellectual property rights, we may at our own cost modify the platform so that it no longer infringes, obtain a licence letting you carry on using it, or end the affected part of these Terms and refund the fees you have paid for the unused period. That is the extent of our obligation in respect of such a claim.

You will indemnify us against claims and expenses arising from your use of the platform in breach of these Terms or of applicable law. We will tell you promptly about a claim covered by that indemnity, and you may take over its conduct, in which case we will give reasonable cooperation at your expense. Neither party settles a claim in a way that admits fault by the other, or imposes an obligation on it, without its agreement.

The parties agree that these limits are reasonable, that they reflect the level of the fees payable under these Terms, that each party is better placed than the other to insure its own losses, and that the fees would be materially higher without them.

Changes to these Terms

We may update these Terms. We will give at least thirty (30) days’ notice of a material change, by email to the address on your account or in the portal. Continued use after the change takes effect is acceptance of it. If you do not accept it, you may terminate before that date.

General

Governing law. These Terms are governed by and construed in accordance with English law and are subject to the exclusive jurisdiction of the English courts.

Disputes. The parties will first attempt to resolve any dispute through negotiation and, if that fails, mediation, before going to court.

Notices. Notices may be sent to the registered address of either party, or by email — to hello@decisimo.com for us, and to the address on your account for you. Email notice is effective when sent, absent a bounce.

Assignment. Neither party may assign these Terms without the other’s written consent, except in connection with a merger, reorganisation or sale of all or substantially all of its assets, with notice to the other party.

Force majeure. Neither party is liable for failure or delay caused by events beyond its reasonable control, including natural disasters, acts of government, labour disputes and power failures.

Independent parties. The parties are independent contractors. These Terms create no partnership, employment or agency relationship.

Names and logos. Neither party may use the other’s name or logo without prior written consent.

Severability. If a provision is held invalid or unenforceable, the rest continues in full force.

Entire agreement. These Terms, together with the Data Processing Agreement, any order confirmation and any signed agreement, are the entire agreement between the parties on this subject and supersede prior understandings. Each party acknowledges that it has not relied on any statement not set out in them, except that nothing here limits liability for fraudulent misrepresentation. Amendments other than those made under section 15 must be in writing.

No waiver. A failure or delay in enforcing a provision is not a waiver of it, and exercising a right once or in part does not prevent exercising it again.

Third-party rights. A person who is not a party to these Terms has no right under the Contracts (Rights of Third Parties) Act 1999 to enforce any of them.

Sanctions and export control. Each party will comply with applicable sanctions, export control and anti-bribery laws. You confirm that you are not, and are not acting for, a person whose status under those laws would prohibit us from providing the platform to you, and that you will not make the platform available to anyone in breach of them.

Language. These Terms are published in English and in Spanish. If the two versions differ, the English version governs.

Costs. Each party covers its own costs relating to these Terms.

Questions about these Terms: hello@decisimo.com.

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