Whistle is a Revenue Acceleration Agency empowering fast-growing companies with operations, teams and strategies to unlock possibility and create opportunity. We solve the hardest problem in business (finding customers) so that companies improve their chances of survival and success in competitive and uncertain markets.

We are honest and transparent in everything we do and look to work with companies as long term partners. We believe this to be a foundational principle that differentiates us from others. We offer the best people and processes at all times and regularly invest in improvement via world-class training and processes.

MEET THE TEAM

We’ve launched over 50 successful B2B SDR campaigns and our clients have raised over $200M and generated $48M per year since working with us.

David Zeff

David Zeff

Co-Founder & CEO

Yonah Zeff

Yonah Zeff

Co-Founder & COO

David Zeff

David Zeff

Co-Founder & CEO

Yonah Zeff

Yonah Zeff

Co-Founder & COO

TESTIMONIALS

“Whistle provided us with strategic assistance in developing our enterprise pricing plans and strategies. Their hands-on approach allowed us to create a custom offer that appealed to our prospects. I’d recommend working with David and the Whistle team for your sales needs.”

Tomer Suarez

Co-founder & Chief Executive Officer, Interai

“Whistle has been instrumental in scaling our outbound efforts across the U.S. and in training our team on best practice sales development. We were excited to generate opportunities with the Whistle team.”

Nicholas Chu

Chief Executive Officer, Sinorbis

” Whistle is a tremendous asset to any startup looking to accelerate their sales growth. Not only did they boost our sales performance by setting sales meetings with key prospects, but they managed to establish our SDR processes, identify our core messaging, and set sales meetings.”

Daniel Scott

Chief Executive Officer, OSU