About

The Sales & Commercial
Co-Founder You Wish You Had.

Believe & Build exists to help founders bring businesses to life and set them up for scalable growth — with an honest sparring partner who's been in the room for the hard conversations.

Believe & Build

You need experience to drive your business forward but likely don't want or need a full-time executive. Believe & Build partners with you as fractional leaders — embedded in your outcomes, not just a consultant with a finite scope.

Fractional leadership is how many founders are growing their businesses, until they require a full-time resource at the helm of a function like sales.

Your Sales & Commercial Co-Founder

We Are Your

Sales & Commercial
Co-Founder.

Whatever role your business needs right now, Believe & Build steps in to fill it.

Sales & Commercial Co-Founder

An embedded partner attached to your outcomes, not just a finite scope of work.

Chief of Revenue

Building scalable, sustainable revenue engines across your whole commercial function.

Head of Sales

Bringing operational rigour, coaching, and process to your revenue engine.

GTM Lead

Designing and executing the strategy to bring your product confidently to market.

Sales Wingmen & Wingwomen

Deal support and coaching, right there with you in the critical moments.

Founder

Hi, I'm Tammie.

I've spent my career in the room where commercial complexity gets untangled — negotiating some of the largest and most challenging engagements across industries, and building revenue functions from scratch for founders who needed a true partner, not just a consultant with a finite scope.

Believe & Build was created to bring that experience to founders directly: fractional, embedded, and attached to the outcomes that actually matter to your business.

What Founders Say

Real Results.
Honest Partnerships.

"

Tammie has an impeccable understanding of the right questions to ask in uncovering where strategy can be best applied for optimal business growth. A dynamo of uplifting energy with an open mindset.

Jason — Founder & Consultant
"

Her high digital and business IQ combined with technical, financial knowledge enables her to be a real asset with clients and teams she represents. A real passion for growth.

David — Head of Sales
"

Tammie provided steady, strategic leadership during a critical transition, bringing clarity and cohesion to the Operations Team. Her leadership strengthened cross-functional alignment.

Fatima — State Manager
"

I was impressed by her innovative ideas and her ability to keep a project moving despite the many attempts by life to interrupt. Her management skills are second to none.

Amelia — Founder

Some Brands We've Grown

Meltwater Airtasker Shinehub Equitise Student Super Splend UNSW Global LG Webprofits HP Spaceship UpGuard Australian Ethical AIF

If you believe,
let's build.

You don't need a full-time executive. You need the right person, at the right time, attached to the right outcomes.

Let's Talk

Find me for a chat.

Tammie Lee — Founder, Believe & Build

📱 0425 407 577 ✉️ [email protected]
in linkedin.com/in/tammielee