A venture studio for founders

We build the business. You stay the founder.

We build the engine of your business and back the person building it. As a partner, a service, or for a stake.

You get a blueprint back: what we would build, how, and in which mode.

Clients
  • DUOO
By the numbers
€3M+
in ad spend managed
+340%
peak ROAS lift, one e-commerce case
100+
brands
10+
industries
Named results

Work we can point to.

HBO Max

On the limited series One Day in October: 10M+ organic views in under two months, one reel at 6.4M, 8,000 followers from zero.

Orion Security

Raised 38M USD with Norwest and IBM.

EchoHQ

Raised 50M USD in ten months.

Founders we work with

In 30 days we went from zero infrastructure to a full CRM, content pipeline, and paid media system.

Almog N.
founder of MOGI Wellness
The work

We build the whole business.

The model, the brand, the systems, the market, and the founder at the center of it. We build every layer, and we stay in the room while it works.

What we build

Five layers. One business.

01
Model

How the business makes money. The offer, the pricing, the segments, the cashflow.

02 · the core
Founder

The person building it. Your role, your focus, the calls only you can make.

03
Brand

The identity, the positioning, the offer, the experience.

04
Systems

The backbone that runs without you. Quotes, contracts, delivery, follow-up.

05
Market

How it reaches people and turns them into customers. Site, content, paid, distribution.

How we work

One engine. Three ways in.

Service
Your embedded team

We run it as your team. Embedded, month to month.

License
Your name, our build

Our build engine, delivered under your name.

Equity
Operating partner

We embed as your operating partner and take a stake. We build it like our own.

Discretion

You stay the founder. We stay behind the scenes.

We build it, we run it, we keep it sharp. But it is your name on the door and your face out front. We work quietly in the background, and we let you take the credit. What happens behind the build stays between us.

The engine

We own the way we build.

A system we have refined across every business we have built, sharpened with AI so one studio carries all of it. We deploy it into your business and it moves fast.

Foundations live in 72 hours
Results

The work speaks.

100+
brands
72h
from zero to live
3
ways to partner
Work with us

Become a founder's partner.

The West Fifth Partner
₪5,500 / month · 3-month minimum

An ongoing partnership. We build with you, hand you the tools and the autonomy over time, and stay in the room.

Some businesses we take a stake in. Some we license to. We find the fit.

The studio

Founders, backing founders.

West Fifth is Julian and Yarden. We have built brands, products and growth engines of our own. We bring that to the businesses we partner with.