For audit, accounting and advisory firms
AI that does the work.
Professionals who stay in control.
Built by professionals.
Powered by AI.
Controlled by humans.
Monsoon brings your data, your firm's knowledge and AI agents together in one architecture. Agents carry out agreed tasks; your people set the scope, review the results and sign off. Outputs stay linked to the evidence behind them.
Demonstrations use prepared sample data. We do not ask for your client files to see Monsoon.Example working paper on sample data: each tested invoice is linked to its source document, and exceptions wait for partner sign-off.
What changes in the work
Monsoon takes on the volume. Your team keeps the judgement.
Less repetitive work
Agents perform agreed procedures, such as matching, recalculating, extracting and checking, so staff time moves to review, exceptions and client conversations.
More coverage, where it applies
For defined procedures on supported data, Monsoon can test the full population rather than a sample. Where data is incomplete, it is flagged rather than assumed.
Evidence you can follow
Each result links back to the source records and documents it relies on, with a log of what the agent did and who reviewed it.
Financial and operational information
Work across ledgers, spreadsheets, PDFs and scanned documents, for example verifying claims against their supporting documents, not only against the ledger.
Capacity and time effects vary by engagement and data quality. Where we quote results, they come from documented use cases with stated scope. source: agreed baseline figures, if any are to be shown here
See the platformOne procedure, two approaches
Revenue cut-off on 12,480 invoices. Sample data.
25 items0 of 12,480Solutions for the work firms need to do
Monsoon's core platform supports engagements today. Packaged solutions for specific types of work are being released in stages, and each one shows its current status.
Core platformConfigured with your team
Defined audit, accounting and advisory procedures, run by agents and reviewed by your people.
Available confirmBook a demoRadarGovernance, risk and compliance
Risk registers, control testing and reporting for selected frameworks.
Pilot confirm: status and dateDiscuss a pilotCycloneStatutory audit
Audit engagements performed under the International Standards on Auditing.
Planned, target March 2027 confirmGet launch updatesEquinoxAnnual financial statements
Preparation and review of annual financial statements.
Planned confirm: status and target dateGet launch updatesWhere Monsoon has been used
Monsoon was first used inside RAiN Chartered Accountants, the firm where it originated. The engagements below were delivered by RAiN using Monsoon. They are anonymised; each sets out the scope, what Monsoon did and what the engagement team reviewed.
Originating firm: RAiN Chartered Accountants
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Public sectorFirst-time GRAP adoption
2,000+fixed assets
Per-asset recalculation of more than 2,000 fixed assets over a 334-day reporting period, with every variance tabulated for review. source: confirm figures and client consent
Reviewed by engagement team
Read the case -
Financial servicesFive-entity group
5licensed entities
Commission income tested against provider statements across five licensed entities, with a consistent IFRS for SMEs disclosure review for each set of financial statements. source: confirm scope and consent
Reviewed by engagement team
Read the case -
AutomotiveDealer incentive claims
~15,000supporting documents
Close to 15,000 supporting documents checked against a defined validation checklist, covering every claim submitted in the period. source: confirm figures and consent
Reviewed by engagement team
Read the case
RAiN is the originating firm of Monsoon. These are not independent third-party references. confirm: approved wording
View all use casesWays to work with us
Choose the route that suits how your firm wants to use Monsoon.
Use Monsoon within your firm
Licence the platform for your own team. Authorised users complete Monsoon certification before working on the core. confirm: certification requirements
Use a packaged solution
Adopt Cyclone, Equinox or Radar as they become available. Each covers a defined process end to end, with basic user training. confirm
Get support with an engagement
Work with RAiN, using Monsoon, on a specific engagement. Responsibilities for data, execution, review and sign-off are agreed before work starts.
Start with a focused pilot. Expand as confidence grows.
We work with your firm to evaluate Monsoon within an agreed scope, with clear success criteria and professional oversight. Your existing review and approval arrangements stay in place throughout.
Agree the scope
An agreed scope, clear success criteria and professional oversight from the start.
Review together
Together, we review the results, refine the workflow and prepare your team.
Refine, repeat or pause
Expand when ready
Expansion is your decision, based on the evidence.
Professional judgement stays with professionals
Monsoon works within boundaries your firm sets. Agents perform defined tasks; people approve scope, handle exceptions and sign off. Actions are logged and results remain linked to their evidence.
- Agentperforms
- Reviewerapproves
- Partnersigns off
- ISO/IEC 27001
- Information security management confirm: certified entity, scope, certifying body (AENOR?), certificate dates
- ISO/IEC 42001
- AI management system confirm: certified entity, scope, certifying body (AENOR?), certificate dates
- POPIA and GDPR
- Controls described in the Trust centre confirm: documented controls
These certifications cover how Monsoon's systems are managed. They do not certify audit opinions or other professional outputs.
Visit the Trust centreExplore Monsoon.
See the platform on prepared data, or talk to us about a pilot for your firm.
Demonstrations use prepared data. No client files needed.