About us
Finding customers is the hardest problem in business. And we’ve solved it. Thousands of times.
To date, our customers have raised over $2Bn in funding and generate over $15M per month in pipeline sourced from Whistle’s SDRs. Our aim is to give fast-growing companies a better chance of success in scaling global growth.
Whistle is headed by brothers David and Yonah Zeff and was founded in 2020, following 3 tech exits spanning a decade in SaaS sales. We currently support companies targeting every timezone – this is made possible by our incredible team of over 100 people that support our services through Management, Operations, Data Research, Content Marketing, Sales and Sales Development.
About us
Finding customers is the hardest problem in business. And we’ve solved it. Thousands of times.
To date, our customers have raised over $2Bn in funding and generate over $15M per month in pipeline sourced from Whistle’s SDRs. Our aim is to give fast-growing companies a better chance of success in scaling global growth.
Whistle is headed by brothers David and Yonah Zeff and was founded in 2020, following 3 tech exits spanning a decade in SaaS sales. We currently support companies targeting every timezone – this is made possible by our incredible team of over 100 people that support our services through Management, Operations, Data Research, Content Marketing, Sales and Sales Development.
Our Culture
We are a 100% remote company, which allows us to recruit diverse, global talent with unique skill sets and fresh perspectives.
One of our top priorities is ensuring that our home-workers do not feel like lone-workers. That’s why we started the Whistle Wellness program – it gives the team a means to connect outside of work – through activities like meditation, personal training sessions, feel good Spotify playlists, a book club, meal plans and more. The goal is to promote happiness, wellness, team bonding and a healthy work-life balance.
We are a company led by merit – we don’t only encourage innovation and self-starter attitudes, we reward it. After all, we believe that the only way we can become, and remain, the #1 leader in sales development is by relying on the input of all 100+ Whistlers.
Executive Team
It takes a huge, highly professional (sometimes eccentric) group of characters to sustain a company like Whistle. And the team who lead them are no different.
David Zeff | CEO
Yonah Zeff | COO
Lynne Cumings | HR Director
Bronwyn Johnson | Senior Account Manager
Nicole Webster | Head of Sales
Leigh Normington | Account Manager
Tracy Davidson | Account Manager
Nicole Victor | Account Manager
Marc Brooker | Account Manager
Claire Webster | Partnerships Manager
Mike Simmermacher | Key Account Team Leader
Kirsten Bredekamp | Head of Revenue Operations
Kayla du Plessis | Head of Brand Marketing
Cat Van-Wijk | Data & Systems Manager
Chean Goodrich | Marketing Manager
Jason Goodrich | IT Manager
Client testimonials
We support portfolio companies from leading VCs
