Melbourne, AU · Australian-owned and operated

Built for the people who see what's coming.

Mayfly is an Australian AI venture studio. We partner with industry insiders who can see exactly where AI could transform their field, and need one team to take it from validated idea to working product.

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we are

Not a software agency.
Not a consultancy.
A venture studio that invests in what we build.

We validate before we build.

Every engagement starts with commercial validation. You know whether the idea is worth backing before a cent is spent on development.

Validate your idea

Strategy and build in one team.

No handover between a consultant and a developer. The team that defines the strategy is the team that builds the product.

See how we develop your idea

We invest in what we build.

For select ventures, we back our work with sweat capital. Our return depends on your outcome.

Discover more about investor access

WHO WE PARTNER WITH

You can see the opportunity. Most people in your position can't.

You've spent years inside your industry. You know where the friction is, where time gets wasted, where a well-built AI product could change how the whole thing works. You're not looking for a generic tool. You're looking for something purpose-built, grounded in how your industry actually operates.

But turning that insight into a product is a different problem entirely. The technical landscape is crowded and confusing. The risk of backing the wrong approach is real. And most of the people offering to help are selling a build, not a partnership.

That's the gap Mayfly fills. We bring commercial strategy, product design and AI engineering into one team, so your industry knowledge and our venture-building capability move together from the start.

THE PEOPLE BEHIND THE VENTURES

One team. Every stage.

Strategy, product, design and engineering don't hand off between teams at Mayfly, they work together from the first conversation to the last deployment. These are the people you work with.

Geo George

Founding Partner, Product Strategy

Geo leads product strategy and design, translating complex operational problems into products that are well-considered, commercially grounded, and built to be used.

Roselle de Kruijk

Venture Building Partner

Roselle connects strategy with execution across the build and growth phases, ensuring each venture is shaped with the right commercial and operational foundations for long-term performance.

Marco Santiago

Technical Partner, CTO

Marco leads technical architecture and AI engineering. He designs systems that perform reliably in real-world conditions and scale without accumulating technical debt.

Not because the technology doesn't work. Because the idea was never commercially validated, the scope was never stress-tested, and the team building it didn't understand the industry it was entering.

Generic tools create incremental efficiency. Venture-grade AI that transforms industry operations requires deep domain knowledge, disciplined commercial thinking, and engineering designed for real-world conditions. It requires someone who understands both the problem and the product.

That's the case for a venture studio model. Not a consultant who hands you a strategy. Not a development shop that hands you a build. One integrated team, invested in the outcome, from the first question to the last line of code.

That's Mayfly.

WHAT WE'VE BUILT

Real ventures. Measurable outcomes.

PSYCHOLOGY

Practice management

Virtuosa AI

Built for Australian psychology practices. Replaces fragmented admin workflows with a single AI-driven system.

Live

HEALTH & SPORT

Performance analytics

Runalytics

Running analytics that surfaces meaningful progress data from Apple Health, built for serious amateur athletes.

Building

LOGISTICS

LOGISTICS COMPLIANCE

DGC

A world-first platform that turned a 24-hour manual process into a 4-hour automated task.

Live

HOW WE WORK

One team. No handovers. No coordination cost.

Most business owners who come to us have already tried piecing it together: a consultant for strategy, a designer for product, a developer for build. The result is three teams with three priorities and no single owner of the outcome.

Mayfly brings strategy, product, go-to-market, and engineering into a single team from day one. Decisions stay aligned. Context doesn't get lost. And because we invest our own capital into select ventures, our incentives are the same as yours.

You bring the domain knowledge. We bring everything else.

COMMON QUESTIONS

Questions, answered
with honesty.

Launching an AI venture comes with real questions. Here are the ones we hear most - and clear, honest answers from our team.

Have a different question?

partner with us

If you can see the opportunity, let's find out if it's worth building.

Bring the domain knowledge. We'll bring the commercial and technical expertise. The first conversation is free, takes 30 minutes, and tells you whether there's a real venture here. We speak with a small number of industry experts each month.

Book a free 30-minute call

Built for the people who see what's coming.

Not a software agency.
Not a consultancy.
A venture studio that invests in what we build.

Three things that set us apart.

We validate before we build.

Strategy and build in one team.

We invest in what we build.

You can see the opportunity. Most people in your position can't.

One team. Every stage.

Geo George

Roselle de Kruijk

Marco Santiago

Most AI projects fail before the build begins.

Real ventures. Measurable outcomes.

Virtuosa AI

Runalytics

DGC

One team. No handovers. No coordination cost.

Questions, answered
with honesty.

If you can see the opportunity, let's find out if it's worth building.

Built for the people who see what's coming.

Not a software agency.Not a consultancy.A venture studio that invests in what we build.

Three things that set us apart.

We validate before we build.

Strategy and build in one team.

We invest in what we build.

You can see the opportunity. Most people in your position can't.

One team. Every stage.

Geo George

Roselle de Kruijk

Marco Santiago

Most AI projects fail before the build begins.

Real ventures. Measurable outcomes.

Virtuosa AI

Runalytics

DGC

One team. No handovers. No coordination cost.

Questions, answered with honesty.

If you can see the opportunity, let's find out if it's worth building.

Not a software agency.
Not a consultancy.
A venture studio that invests in what we build.

Questions, answered
with honesty.