IRBA-registered audit firm

Fewer samples. More answers.

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RAiN combines more than 20 years of audit and advisory experience with Monsoon, an AI-native platform developed by PEAQ, RAiN's technology division — so, on defined procedures, we test full populations rather than a sample, and our people spend their time on what matters to you.

Talk to our expertsDiscover Monsoon

NowTimely briefings for finance leaders

Sampling was built for a paper world.

Most audits still test a sample and assume the rest is fine. With thousands of transactions, suppliers and sites, that assumption is where risk — and lost value — hides. Leaders are signing off on numbers they cannot fully see.

source: verified statistic required

  1. Every transaction is a raindrop. This year: 12,480 invoices.
  2. A typical sample catches 25 of them. The 9 exceptions fall straight past.
  3. Test the full population, and every exception is caught for review.

12,480of 12,480 tested

9of 9 exceptions found

Illustration on sample data.

Meet Monsoon. It tests the whole population, so our people can advise.

Monsoon was developed by PEAQ, RAiN's technology division. Its AI agents connect securely to your data, run full-population tests on defined procedures — continuously where available confirm: continuous monitoring availability — and flag what needs attention. Qualified RAiN professionals review the results at agreed review points and turn them into advice.

  1. Connect your data securely
  2. Monsoon tests full populations on defined procedures
  3. Our experts interpret and advise
Discover Monsoon Visit the Monsoon site
EFT-20260221-0447.pdf Same invoice number, amount and bank account as the 14 Feb payment. Flagged for recovery.

Every flagged figure in your file can be traced to its source.

What changes when you can see everything.

Every dot is a transaction. Test them all and the exceptions stop hiding between the ones you picked.

TestedFlagged for reviewIllustration
  • Full-population testingEvery transaction, on defined procedures where Monsoon is used
  • Continuous controls monitoringExceptions surfaced during the year, where available confirm: continuous monitoring availability
  • Anomaly and fraud detectionPatterns that are hard to spot in a sample
  • RecoveriesDuplicate and overpayments identified for recovery
  • Financial statement compilationEquinox, part of the Monsoon platform. confirm: name and availability
  • Live risk and GRC dashboardsWhere available confirm: Radar / GRC module availability

Explore our services

Intelligent. Accountable. Secure.

The Monsoon platform is certified to ISO 27001:2022 for information security and ISO 42001 for AI management (held by PEAQ; certified by AENOR, 2026), and a penetration test of the platform was completed successfully in 2026. Your data is handled in line with POPIA, as set out in our PAIA and POPIA manual, and AI agents' outputs are reviewed by qualified RAiN professionals at agreed review points — technology does the checking, people make the judgements.

  • MSI Global Alliance memberOne of more than 250 independent legal and accounting firms in over 100 countries. Partner firms abroad, coordinated by RAiN at home. confirm: logo use; high-res fileHow MSI works for you
  • RegulatedIRBA-registered audit firm
  • Monsoon platformISO 27001 and ISO 42001, certified by AENOR, 2026
  • Transformation100% Black-owned, B-BBEE Level 1
  • TrainingSAICA and CIMA training office
All credentials and documents

Four practices. One way of working.

Experienced professionals and innovative technology, whichever practice you work with.

Built for the people who sign off on the numbers.

CFO or financial director

…so you want full-population audit evidence and fewer year-end surprises.

Start hereExternal Audit Talk to our experts

Audit committee chair

…so you want internal audit that looks forward, not just back.

Start hereInternal Audit Talk to our experts

Accounting officer (PFMA or MFMA)

…so you want audit readiness, GRAP and clean-audit support.

Start hereAudit readiness Talk to our experts

Business owner

…so you want CFO-level leadership, without the full-time cost.

Start hereFractional CFO Talk to our experts

Procurement or tender team

…so you want everything your procurement team needs, in one place.

Start hereCredentials & compliance Talk to our experts

Selected work.

Anonymised engagements delivered by RAiN. Each one says what we tested and what changed. Results, not names. All outcomes

  • Public sectorAssurance

    2,000+fixed assets

    2,000+ fixed assets recalculated one by one for a first-time GRAP adoption.

    Per-asset recalculation over a 334-day reporting period, with every variance tabulated for review. confirm: figures and client consent

  • Financial servicesAssurance

    5licensed entities

    Commission income tested against provider statements across a five-entity group.

    A consistent IFRS for SMEs disclosure review for each set of financial statements. confirm: scope and consent

  • AutomotiveAdvisory

    ~15,000supporting documents

    Every dealer incentive claim in the period checked, not a sample.

    Close to 15,000 supporting documents checked against a defined validation checklist. confirm: figures and consent

Client quotes to follow, by sector and with consent (source: collect and obtain consent)

Insights for leaders.

Latest articles from RAiN's leaders on audit, AI, risk and finance. View all insights

Train where AI does the ticking and you do the thinking.

Our trainees review the work of AI agents early in their training, building judgement earlier than at a traditional firm.

Explore careers

source: photo of real RAiN people

Six offices. One firm.

From Illovo to the V&A Waterfront, local teams with the whole firm, and Monsoon, behind them.

Find your nearest office

Start with a 30-minute conversation.

Tell us what keeps you up at night. We will show you what complete evidence could change in your business.

Book a diagnostic

Offices in Johannesburg, Cape Town, Bloemfontein, Potchefstroom, Klerksdorp, Mossel Bay. Office directory

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