Built by people who have built sales themselves
Complex sales processes need a system that listens.
If your offer cannot be explained in one sentence, you sell to several people over weeks or months. In the companies we build for, one person usually carries that selling: the founder, the managing director or the head of sales. Cosa exists so that growth does not hang on that one person. A Forward Deployed GTM Engineer builds the system with you and does the work first.
How we work with customers
We do the work first.
Before an agent takes anything over, your Forward Deployed GTM Engineer has shown it at your company, in your CRM and in your weekly rhythm.
Agents go live when they reach the benchmarks.
We agree beforehand how we measure that. We give no guarantee on meetings or closings.
Only what you approve goes out.
Every email and every draft is with you before it is sent.
What we build stays in your stack.
The system runs in your environment, not in an environment you do not know.
How we got here: three decisions
2025
Sell it ourselves first.
As interim head of sales at an agri-tech company (Series B), Levi built B2B sales for global agrochemical partners, with sales cycles of six to twelve months and decision-makers at C-level. The prototype of Cosa was used in every sales conversation there.
April 2026
Turn the prototype into a company.
The first paying customer was a company Levi had previously worked for as interim head of sales.
Summer 2026
One offer instead of two.
We do not sell software and consulting separately but one offer: a Forward Deployed GTM Engineer builds the system and works with it himself. A tool alone does not change how a company sells.
In more than eight years with more than 170 B2B companies, we worked out how digital sales scales profitably, so that you no longer have to do it yourself.
Levi Yosef
Founder
Levi Yosef has built and led sales for complex B2B offers himself, most recently as interim head of sales. Before Cosa he founded his own companies and worked on the growth of other firms as growth director and consultant.