– FINANCIAL MODELLING · SOUTH AFRICA
MODELLING. INTEGRITY. TRUTH.
Specialist model build and audit for South African corporates, project sponsors, and investors. Founder-led. Actuarial techniques. Big-4 quality, boutique agility and pricing.
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VIEW OUR WORK

TRACK RECORD
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
LIBERTY
IMPALA
ABSA
NUTUN
ALEX FORBES
SERITI
INVESTEC
– WHAT SETS US APART
THE RIGOUR OF A SPECIALIST, THE ACCOUNTABILITY OF AN OWNER.
01
Actuarial Rigour
Every model is built on the discipline of probability, contingencies, and risk — applied with the precision of a specialist, not a generalist team.
02
Undivided Attention
Your engagement is never sub-contracted, delegated, or passed down. One senior expert carries your work from first conversation to final delivery.
03
FAST Methodology
Flexible. Appropriate. Structured. Transparent. Every model adheres to the international FAST modelling standard — inputs, calculations, and outputs always separated, every assumption documented, no exceptions.

– THE ALETHEIA DIFFERENCE
ALETHEIA
Ancient Greek for the act of disclosure — the uncovering of what is hidden.
A great financial model does precisely this. It reveals the assumptions. It shows the levers. It surfaces the risks. It does not flatter; it illuminates. We named the firm after this idea because it is the only standard we will be measured by.
READ OUR PHILOSOPHY →
– SERVICES
WE DO ONE THING – EXCEPTIONALLY WELL.
MODEL BUILD
Bespoke quantitative and qualitative models — project finance, LBOs, valuations, business cases, revenue forecasts, workforce blueprints.
MODEL ENHANCEMENT
Rebuild sections, add scenarios and dashboards, improve transparency of existing models.
MODEL AUDIT & REVIEW
Independent review of existing models — logic, structure, assumptions, error checking, FAST/ICAEW compliance.
TRAINING & ENABLEMENT
Custom modelling workshops for client teams — FAST methodology, best practice, in-house capability building.
MODEL HEALTH CHECK
Rapid, structured review with written report in 2-5 days. Ideal pre-transaction or pre-board.
NOT SURE WHERE TO START? BOOK A CALL →
A 30-minute discovery call costs nothing. We’ll tell you honestly whether we can help — or who else might.
– SECTORS
WHERE WE WORK — AND WHY IT MATTERS.

MERGERS & ACQUISITIONS

INSURANCE

BANKING

MINING & RESOURCES

PROJECT FINANCE & INFRASTRUCTURE

COLLECTIONS & RECOVERIES

RETAIL

– FOUNDER
MOSA BILA
–
A rare combination of actuarial training and hands-on financial modelling experience, our founder and lead consultant brings a broad view of how capital, data, and human behaviour combine to shape business outcomes. Seven years across insurance, audit, banking, mining, recoveries, asset management, and consulting have taught him that the same modelling discipline travels — and that the answers worth trusting are the ones the numbers cannot hide. His work sits at the intersection of analytics, strategy, and execution: building financial models that tell the truth. Aletheia reflects his conviction — rooted in Christian faith — that models must reveal reality with clarity and integrity.
MEET MOSA →
-READY TO TALK?
The standard we hold ourselves to is simple. If a client asks whether their model is telling them the truth, the answer must be yes — and they must be able to see how.
ALETHEIA PARTNERS · FOUNDING PRINCIPLE
– INSIGHTS
NOTES FROM THE MODEL.

MODELLING BEST PRACTICE · 7 MIN READ
The five most common financial model errors — and what they cost.
Most boardroom-grade models have at least one. We catalogue the patterns we see most often in audits.

AUDIT FINDINGS · 5 MIN READ
Why your model lied to your board — and what a proper audit would have caught.
A real-world breakdown of a model that survived three review cycles but still produced the wrong NPV.
ALL INSIGHTS →

FOUNDER NOTES · 6 MIN READ
How actuarial thinking improves financial models.
Probability is a tool most financial models use badly, if at all. Here’s how to do it properly.
”
NEED A MODEL THAT WILL REVEAL THE TRUTH?
A 30-minute discovery call. No obligation. A scoped proposal within 48 hours.
BOOK A DISCOVERY CALL→

Modelling. Integrity. Truth.
Specialist financial modelling consultancy. Founder-led. Actuarially trained. Johannesburg-based, working with corporates and project sponsors across South Africa.
SERVICES
Financial model build
Model audit & review
Model health check
Model enhancement
Training & enablement
COMPANY
About
Founder
Case studies
Insights
Contact
CONTACT
info@aletheiapartners.co.za
(072) 074-4862
Johannesburg, Gauteng