A supplier raises prices at renewal, and the cap that should have stopped it sits in an amendment nobody linked to the master agreement. Icertis vs Ironclad vs Sirion is a choice between three ways of catching that before it becomes a problem. They get there from different starting points, and that difference decides which one fits your team.
We compared the three on the same five weighted criteria: after-signature tracking, procurement fit, authoring and review, time to value and pricing clarity. Facts come from each vendor’s home, product, procurement, integration, pricing and press pages, read on October 31, 2026. Our scoring rules are public, and related guides sit in the contract management hub. Start with our contract lifecycle management software guide or our best contract management software ranking for the wider field, and our Agiloft vs Icertis vs Ironclad comparison swaps Sirion for Agiloft.
Icertis vs Ironclad vs Sirion: which should you pick?
Pick Icertis if you run SAP Ariba and manage a large supplier portfolio: it scores 8.4 out of 10. Pick Sirion, at 8.3, if supplier obligations and service levels carry the value of your contracts. Pick Ironclad, at 8.2, if procurement reviews a lot of vendor paper and works in Coupa. None of the three publishes a price.
| Platform | Built around | Best for | Named S2P links | Our score |
|---|---|---|---|---|
| Icertis | Contract intelligence embedded in SAP | Large supplier portfolios on SAP Ariba | SAP Ariba, Coupa, Workday, NetSuite | 8.4 |
| Sirion | Post-signature performance and agents | Service contracts with SLAs, credits and invoice checks | SAP Ariba, SAP S/4HANA | 8.3 |
| Ironclad | Workflow, review and intake agents | Procurement teams reviewing vendor paper, often in Coupa | Coupa, SAP Ariba, Zip, Ramp, NetSuite | 8.2 |
Our pick
Icertis for SAP estates, Sirion when performance is the point
Icertis edges ahead because its contract engine runs inside SAP Ariba itself, per its SAP page. Sirion ties it on after-signature tracking and leads on measuring supplier performance. Ironclad trails by two tenths overall but wins on authoring, review and Coupa workflow.
How are Icertis, Ironclad and Sirion built differently?
Icertis treats contracts as data that feeds other systems, and SAP sells its engine inside SAP Ariba. Sirion starts after signature, tracking what each party promised against what it delivered. Ironclad starts with the workflow: getting a contract requested, reviewed, approved and signed without waiting on legal every time.
| Your situation | Lean toward | The question to ask in writing |
|---|---|---|
| SAP Ariba runs sourcing and you want contracts to stay in SAP | Icertis | Which features come with Premium vs Premium Plus? |
| Outsourcing or services deals where SLAs drive credits | Sirion | Can you show a service credit calculated from real performance data? |
| Procurement reviews vendor paper daily and buys in Coupa | Ironclad | Does the requisition wait for the signed contract before a PO issues? |
| Legal, sales and procurement want one system of record | Any of the three | Who owns migration of old contracts, and at what cost? |
What does Icertis do best?
Icertis does the SAP-native supplier record best. Its SAP page says contract intelligence runs natively inside SAP processes. Contracts are anchored to SAP master data, and sourcing projects link directly to the contracts they produce. In SAP’s words, SAP Ariba Contracts is the foundation and SAP Ariba Contract Intelligence by Icertis adds the advanced CLM layer.
After signature, its procurement page tracks supplier obligations, milestones, renewals, service levels and commercial commitments. Vera Obligations identifies, assigns and tracks each obligation with an owner. Its comparison page lists 160+ open API endpoints for the systems it does not connect to by default.
What does Sirion do best?
Sirion does supplier performance best. Its Manage page validates performance against service level agreements and audits invoices against purchase orders, contract terms and performance data. It identifies payments and penalties tied to each obligation and matches each one to the right invoice line item. Every obligation traces back to the clause that holds it.
Amendments are handled too. The same page says conformed contracts reconcile every amendment into a single contract, and smart renewals send alerts with renegotiation advice. Its SAP Ariba integration page turns awarded sourcing events into contract requests and pushes signed contracts back to Ariba. Sirion says it has customers across 70+ countries.
What does Ironclad do best?
Ironclad does fast, governed review of vendor paper best. Its procurement page says the Contract Review Agent checks vendor paper against playbooks and supplier precedent. It flags non-standard terms and missing protections. The Intake Agent reads incoming vendor paper and fills the launch form, so work starts from a complete request.
The Coupa link is the deepest of the three. Ironclad’s Coupa integration guide launches a contract as part of the Coupa requisition approval flow, and neither process completes until both teams approve. It can hold the requisition until the contract is signed, so POs issue only for legally agreed spend. Signed contracts sync back to Coupa as contract records.
How do Icertis, Ironclad and Sirion score?
Icertis scores 8.4, Sirion 8.3 and Ironclad 8.2 out of 10. Icertis and Sirion tie on after-signature tracking and procurement fit. Icertis wins the tie on authoring, while Ironclad leads authoring and time to value but drops points on after-signature depth. All three score low on pricing clarity because none publishes a price.
| Criterion | Max points | Icertis | Sirion | Ironclad |
|---|---|---|---|---|
| After-signature tracking | 3 | 2.8 | 2.8 | 2.6 |
| Procurement fit | 2.5 | 2.4 | 2.4 | 2.2 |
| Authoring and review | 2 | 1.8 | 1.7 | 1.9 |
| Time to value | 1.5 | 1.0 | 1.0 | 1.1 |
| Pricing clarity | 1 | 0.4 | 0.4 | 0.4 |
| Score | 10 | 8.4 | 8.3 | 8.2 |
The gap is small, so let your stack break the tie. If you are still choosing the suite those contracts feed, our source-to-pay suites ranking compares the suites, and Coupa vs SAP Ariba covers the two suites these CLMs connect to most.
What the record holds in each platform
A contract record is only as good as its fields, their owners and their sources. The table shows how each vendor says it fills the fields procurement relies on after signature. Ask each one to show these on a real supplier agreement, in writing, before you sign.
| Field | Who owns it | Icertis | Sirion | Ironclad |
|---|---|---|---|---|
| Supplier and legal entity | Procurement | Supplier master synced from SAP S/4HANA | Approved suppliers sync from SAP Ariba | Supplier data pulled from Coupa or SAP Ariba |
| Renewal date and notice window | Contract owner | Renewals tracked across supplier agreements | Smart renewal alerts | Renewal Agent; act before renewal windows close |
| Obligations | Named obligation owner | Vera Obligations assigns an owner to each | Each obligation traced to its clause | Shared view of obligations and exposures |
| Service levels and penalties | Business owner of the service | Service levels tracked | SLA validation; penalties matched to invoice lines | SLAs and credits listed as tracked terms |
| Amendments | Legal | Not named on the pages we read | Amendments reconciled into one conformed contract | Contract Family Agent links related agreements |
| Signed contract back to S2P | Procurement operations | Synced with SAP Ariba | Pushed into SAP Ariba | Published to the Ariba workspace or synced to Coupa |
How does each connect to SAP Ariba and Coupa?
All three connect to SAP Ariba, and the depth differs. Icertis is an SAP solution extension, per its platform page, so it is sold and embedded with SAP. Sirion deploys through a pre-built SAP accelerator. Ironclad’s SAP Ariba setup guide prefills launch forms from Ariba and publishes signed contracts back to the Ariba contract workspace.
For Coupa, Ironclad has the most documented workflow, from requisition launch to approval sync. Icertis lists Coupa among its standard connections on its comparison page. We did not find Coupa named in text on Sirion’s integrations page, so ask Sirion to show the connector live. Ironclad’s integrations page also lists Zip and Ramp.
If your intake runs in front of the suite, check that link too. Our intake-to-procure software guide explains how request tools hand off to contracts and purchasing.
How do their AI agents compare?
All three now sell agents behind one conversational front door. Icertis has Vera Copilot plus a set of Vera AI agents. Its integrations page adds agent interoperability with Microsoft Copilot, OpenAI, Claude and SAP Joule. Sirion’s platform page routes requests through AskSirion to purpose-built agents running on agentOS.
Sirion lists agents for drafting, issue detection, redlining, templates, extraction, obligations and invoice reconciliation, and lets customers build their own. Ironclad’s Ironclad Agent launch post names Search, Analytics, Workflow Designer and Contract Family agents as generally available. Intake, Contract Review, Archive and Renewal agents already existed, with a Playbook Agent in early access.
Governance is the part to test: Ironclad says every agent request inherits its policy-based access control. Sirion says every recommendation carries a direct source link. Icertis frames it as agents execute and humans govern. None of the three publishes a separate AI price on the pages we read, so ask which agents sit in your plan.
How much do Icertis, Ironclad and Sirion cost?
None of the three publishes a price. Ironclad’s pricing page says quotes are shaped by your products, users, workflows and growth, across CLM, an AI assistant and eSignature. Icertis and Sirion quote per deal. For SAP customers, Icertis also mentions Premium and Premium Plus editions of SAP Ariba Contract Intelligence.
| Vendor | Published price | What drives the quote | Ask about |
|---|---|---|---|
| Icertis | None | Products, contract types and SAP edition | Premium vs Premium Plus scope; licensed API access |
| Sirion | None | Modules, agents and connectors | Custom agents; SAP accelerator cost |
| Ironclad | None | Products, users, workflows and growth | Extra instances; legal engineer or partner deployment |
Get each quote to list the same four lines: licences, implementation, migration of legacy contracts and integrations. Ironclad lets you lead your own deployment, lean on its legal engineers or use a partner. That choice moves the services line more than the licence line.
What do the analysts say?
Gartner published its latest Magic Quadrant for Contract Life Cycle Management on 10 November 2025 and evaluated all three. Sirion’s press release says it was named a Leader for the fourth consecutive time, positioned highest on Ability to Execute among 16 vendors. Ironclad’s home page says it was named a Leader in the same 2025 report.
Icertis’s news page says it was named a Leader in the 2024 report for the fifth consecutive year. We did not find an Icertis announcement of its 2025 placement, so ask Icertis for the current report. Ironclad also cites a Leader position in The Forrester Wave for CLM Platforms, Q1 2025, and in IDC’s 2025 buy-side CLM assessment.
After signature: the checklist
Run the same list in all three demos, on one of your own live supplier contracts rather than a sample. If a platform cannot show an item on that contract, the gap becomes your team’s manual work. Ask the vendor to confirm each item in writing.
- Renewals: the notice date is extracted, a person confirms it, and the alert goes to a named owner.
- Obligations: each obligation has an owner, a due date and a link to the clause that created it.
- Service levels: missed SLAs turn into a credit or a flagged invoice line, not a spreadsheet.
- Amendments: an amendment updates the record, and the original terms stay visible.
- S2P sync: the signed contract appears in SAP Ariba or Coupa with the right supplier and amounts.
- Audit trail: every change, approval, agent action and signature is logged with a time and a user.
Red flags in a demo
- The demo runs on clean sample contracts, never your scanned supplier paper.
- The Ariba or Coupa “integration” turns out to be a file export someone runs by hand.
- Agent actions are not logged, or ignore the permissions of the user who asked.
- An AI accuracy figure is quoted without saying how it was measured.
- Obligation tracking needs a services project the quote does not include.
- Nobody can say in writing who owns migration of your old contracts.
When your suite’s contract module is enough
Your S2P suite’s contract module is enough when most contracts are supplier agreements created from sourcing events, and you mainly need storage, expiry notices and a link to the PO. One of these three earns its cost once legal reviews a lot of third-party paper, obligations need owners, or sales and HR contracts need the same system of record.
If the suite itself is in question, see our SAP Ariba alternatives guide or how source-to-pay differs from procure-to-pay. For agents across the wider procurement stack, our AI procurement software ranking compares more vendors.
The verdict: Icertis, Ironclad or Sirion?
Icertis scores highest, 8.4, because its engine sits inside SAP Ariba and it tracks supplier obligations with named owners. Sirion, at 8.3, is the stronger pick when SLAs, credits and invoice checks carry the contract’s value. Ironclad, at 8.2, wins on review speed and the Coupa workflow. Choose by your suite first, then by the failure you keep seeing.
The verdict
- Choose Icertis if SAP Ariba runs sourcing, your supplier portfolio is large, and you want contracts to stay inside SAP.
- Choose Sirion if supplier performance, service credits and invoice accuracy drive the value of your contracts.
- Choose Ironclad if procurement reviews vendor paper daily, buys in Coupa, and wants contracts signed before POs issue.
- Stay on your suite’s module if contracts mostly come from sourcing events and need storage plus expiry notices.
Frequently asked questions
Is Icertis better than Ironclad?
For an SAP Ariba estate with a large supplier portfolio, yes: Icertis scores 8.4 to Ironclad’s 8.2 in our comparison, mainly on after-signature tracking and SAP depth. For a procurement team that reviews a lot of vendor paper and buys in Coupa, Ironclad is the better fit, thanks to its review agents and requisition sync.
What is the difference between Sirion and Icertis?
Both track obligations after signature, and they tie on that criterion in our scoring. Icertis is embedded in SAP Ariba as SAP Ariba Contract Intelligence and leans on SAP master data. Sirion leans on performance: it validates SLAs, matches penalties to invoice lines and reconciles amendments into one conformed contract.
Which CLM works best with SAP Ariba?
Icertis has the deepest SAP Ariba link, because SAP sells its engine inside SAP Ariba Contracts. Sirion turns awarded Ariba sourcing events into contract requests through a pre-built accelerator. Ironclad prefills launch forms from Ariba and publishes signed contracts back to the Ariba contract workspace.
Which CLM works best with Coupa?
Ironclad documents the deepest Coupa workflow: a requisition launches the contract, both approval flows must finish, and the PO can wait until the contract is signed. Icertis lists Coupa among its standard connections. We did not find Coupa named in text on Sirion’s integrations page, so ask Sirion.
How much do Icertis, Ironclad and Sirion cost?
None of the three publishes a price. Ironclad says quotes depend on products, users, workflows and growth. Icertis and Sirion quote per deal, and SAP customers can buy Icertis as SAP Ariba Contract Intelligence in Premium or Premium Plus editions. Ask each quote to separate licences, implementation, migration and integrations.
Are Icertis, Ironclad and Sirion Gartner Leaders?
Sirion and Ironclad both say they were named Leaders in Gartner’s 2025 Magic Quadrant for Contract Life Cycle Management, published 10 November 2025. Icertis says it was a Leader in the 2024 report for the fifth year in a row. We did not find an Icertis announcement of its 2025 placement.
