ContractbookHelping businesses scale with future-proof contracts
vs
SirionThe global leader in AI-native, enterprise-grade contract lifecycle management software.
Comparison · Proposals & Contracts · weekly run Nov 2
Contractbook vs Sirion
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Sirion is the stronger AI pick in Proposals & Contracts: it has a visibility score of 2.5 versus 0.6 for Contractbook.
Choose Contractbook if…
- You need GDPR or eIDAS coverage
Choose Sirion if…
- You want the brand AI engines rank higher (2.5 vs 0.6)
- You need ISO 27001:2022 or SOC 1 Type II coverage
- AI-native agentic contract automation
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Contractbook | Sirion |
|---|---|---|
| Visibility score | 0.6% | 2.5% |
| Change vs last week | New | New |
| Rank in Proposals & Contracts | #41 | #24 |
| Share of voice | 0.2% | 1% |
| Mentions this run | 1 | 5 |
| Positive in AI answers | — | 0% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Contractbook 0pp · Sirion 0pp over 0 weekly runs.
Engine by engine
Sirion leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
ContractbookSirion
Head to head in AI answers
0 engine answers name both brands
0Contractbook ranked higher
0Sirion ranked higher
Features, pricing & fit
| Dimension | Contractbook | Sirion |
|---|---|---|
| Pricing model | Flat tiers | — |
| Entry price | Contact sales | — |
| Free plan | Yes | — |
| Deployment | — | Cloud-based SaaS platform |
| Compliance | SOC 2 Type II, GDPR, eIDAS | ISO 27001:2022, SOC 1 Type II, SOC 2 Type II |
| Support | Live chat, Email, Phone support, Help Centre | — |
| Founded | — | 2012 |
| Headquarters | — | Lehi, Utah, United States |
| Employees | — | 501–1,000 |
| Funding | Series B · $44M raised | Series C |
| Best for | Small and growing companies that handle high volumes of low-complexity contracts | — |
Plans side by side
Contractbook
EssentialCustommonth, billed annually
CentralizeCustommonth, billed annually
AccelerateCustommonth, billed annually
CustomCustom
Sirion
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Contractbook
Profile in progress.
Sirion
- AI-native agentic contract automation
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Contractbook vs Sirion”, https://slateindex.ai/compare/contractbook-vs-sirion, data of Nov 2, 2026. Licence: CC BY 4.0.