Verisum
verisum.org
What it is
Verisum provides organisations with tools to govern AI decisions, manage accountability and produce cryptographic proof. Its web and API service is organised around Govern, Monitor and Prove. Govern includes AI system and vendor registers, policy generation, shadow-AI tracking, model registries, regulatory feeds and compliance frameworks. Monitor covers drift, incidents, escalation workflows, runtime signals, staff declarations and team management. Prove includes decision ledgers, attestations, approvals, incident locks, provenance graphs, Trust Exchange, public verification and on-chain anchoring. The HAPP Protocol provides REST APIs for approvals, attestations, provenance, exchanges, incident locks and public verification. Verify can anchor attestations, incident locks and provenance records to EVM-compatible chains including Ethereum, Polygon and Arbitrum. Verisum states that data is encrypted in transit with TLS 1.2 or above and at rest with AES-256 through its managed database provider. Explorer is free forever; Core costs £129/month or £1,238/year, and Assure costs £499/month or £4,790/year. Verify has custom pricing. The DPA says the service is not designed for UK GDPR special category data, which customers must not submit.
Spec sheet
- Purpose
- Verisum provides organisations with tools to govern AI decisions using accountability and cryptographic proof.Read 30 Sep 2026 · verisum.org
- Support
- Verify includes a dedicated account manager with a named contact and priority SLA.Read 30 Sep 2026 · verisum.org
- Headquarters
- Fyning Hill Cottage, Rogate, Petersfield, England, GU31 5EBRead 28 Sep 2026 · verisum.org
- Maker
- Verisum Ltd is listed as based in London, United Kingdom, with Rob Fanshawe as Founder and CEO.Read 30 Sep 2026 · verisum.org
- API integration
- The HAPP Protocol provides REST APIs for approvals, attestations, provenance, exchanges, incident locks and public verification.Read 30 Sep 2026 · verisum.org
- Assure audience
- Assure is positioned for regulated industries, multi-system AI deployments and teams issuing proofs to partners.Read 30 Sep 2026 · verisum.org
- Blockchain support
- HAPP anchors Merkle roots to EVM-compatible blockchains including Ethereum, Polygon and Arbitrum.Read 30 Sep 2026 · verisum.org
- Core audience
- Core is positioned for startups, scale-ups using AI, and teams preparing for audit or diligence.Read 30 Sep 2026 · verisum.org
- Cryptographic proof
- Verify anchors attestations, incident locks and provenance records on-chain so they can be independently verified.Read 30 Sep 2026 · verisum.org
- Govern pillar
- The Govern pillar includes organisation surveys, AI system and vendor registers, policy generation, shadow-AI tracking, model registries, regulatory feeds and compliance frameworks.Read 30 Sep 2026 · verisum.org
- Monitor pillar
- The Monitor pillar provides drift monitoring, incident logging, escalation workflows, runtime signals, staff declarations and team management.Read 30 Sep 2026 · verisum.org
- Privacy limitation
- Verisum's DPA says the service is not designed for and customers must not submit UK GDPR special category data.Read 30 Sep 2026 · verisum.org
- Professional services
- Verisum offers readiness assessments, continuous governance programmes, AI policy and compliance packs, and cryptographic proof setup.Read 30 Sep 2026 · verisum.org
- Prove pillar
- The Prove pillar supports public verification, decision ledgers, incident locks, attestations, approvals, Trust Exchange, provenance graphs and on-chain anchoring.Read 30 Sep 2026 · verisum.org
- Security controls
- Verisum states that data is encrypted in transit with TLS 1.2 or above and at rest with AES-256 through its managed database provider.Read 30 Sep 2026 · verisum.org
- Verify audience
- Verify is positioned for enterprises, regulated industries, high-stakes AI deployments and organisations under the EU AI Act.Read 30 Sep 2026 · verisum.org
Plans and prices
Verisum Explorer Free Free forever 1 assessment · 1 system · 1 vendor · 1 policy · public verification · CSV export Read 30 Sep 2026 · verisum.org
Verisum Core £129 a month £129/month or £1,238/year (save 20%) 2 AI systems · 10 vendors · 3 AI policies/month · 50 staff · 2 playbooks · 5 seats Read 30 Sep 2026 · verisum.org
Verisum Assure £499 a month £499/month or £4,790/year (save 20%) 6 AI systems · unlimited vendors · 10 AI policies/month · 250 staff · unlimited incidents · 10 playbooks · 10 users Read 30 Sep 2026 · verisum.org
Verisum Verify Priced on request Custom pricing Unlimited assessments · systems · users · cross-org Trust Exchange · API access · SSO/SAML Read 30 Sep 2026 · verisum.org
Strong points and limits
Strong points
- Govern covers AI inventories, policies and compliance frameworks.
- Monitor includes drift monitoring and incident workflows.
- Verify supports on-chain anchoring and independent verification.
- HAPP Protocol provides REST APIs.
Limits
- Service is not designed for UK GDPR special category data.
- Verify pricing is custom.
Who it suits
Core is positioned for startups and scale-ups using AI and teams preparing for audit or diligence. Assure and Verify are aimed at regulated, multi-system or high-stakes AI deployments; Verify also suits organisations issuing proofs to partners.
Verdict
Verisum combines AI governance and monitoring with a proof-oriented set of tools. Organisations should consider the plan scope and the stated restriction on special category data before adoption.
Where Specifiction places it
- AI governance tools#5 of 568.5
- AI Governance Software#19 of 567.7