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Insights

Strong Market Position Whistle operates within the competitive advertising services industry, supporting fast-growing companies in their go-to-market strategies, which suggests opportunities to partner with start-ups and scale-ups seeking expert sales development resources.

Growth and Revenue With a revenue range of 10 to 50 million dollars and notable client success stories, Whistle presents itself as a credible partner for mid-sized companies aiming to accelerate their sales pipeline and market expansion efforts.

Tech-Enabled Strategies Whistle’s utilization of advanced sales and management tools like Salesforce, GitHub, and Auth0 indicates a data-driven approach, making it a suitable partner for technology-focused companies looking to enhance their sales development processes.

Expanding Digital Ecosystem Recent news highlights Linktree’s strategic partnerships and feature launches, indicating a vibrant ecosystem and potential opportunities for Whistle to collaborate with digital platforms and content creators seeking monetization and engagement solutions.

Global Client Base Supporting clients worldwide and having a diverse team suggests Whistle is well-positioned to serve international organizations seeking scalable, culturally adaptable sales development support, presenting opportunities in global markets.

Whistle Tech Stack

Whistle uses 8 technology products and services including Google Display Network, Qlik, Travis CI, and more. Explore Whistle's tech stack below.

  • Google Display Network
    Advertising
  • Qlik
    Business Intelligence
  • Travis CI
    Continuous Integration
  • Headspace
    Health Platform
  • Mautic
    Marketing Automation
  • BambooHR
    Recruitment Marketing
  • X-Content-Type-Options
    Web & Portal Technology
  • Nginx
    Web Servers

Media & News

Whistle's Email Address Formats

Whistle uses at least 2 format(s):
Whistle Email FormatsExamplePercentage
First.Last@whistle.ltdJohn.Doe@whistle.ltd
79%
First@whistle.ltdJohn@whistle.ltd
16%
First.MiddleLast@whistle.ltdJohn.MichaelDoe@whistle.ltd
5%
First.Last@linktr.eeJohn.Doe@linktr.ee
81%
FirstLast@linktr.eeJohnDoe@linktr.ee
11%
First@linktr.eeJohn@linktr.ee
5%
FirstL@linktr.eeJohnD@linktr.ee
3%

Frequently Asked Questions

Where is Whistle's headquarters located?

Minus sign iconPlus sign iconWhistle's main headquarters is located at 201 Haverstock Hill London, England NW3 4QG GB. The company has employees across 5 continents, including AfricaAsiaNorth America.

What is Whistle's official website and social media links?

Minus sign iconPlus sign iconWhistle's official website is linktr.ee and has social profiles on LinkedIn.

What is Whistle's SIC code NAICS code?

Minus sign iconPlus sign iconWhistle's SIC code is 8742 - Management Consulting Services NAICS code is 541613 - Marketing Consulting Services.

How many employees does Whistle have currently?

Minus sign iconPlus sign iconAs of October 2025, Whistle has approximately 99 employees across 5 continents, including AfricaAsiaNorth America. Key team members include Chief Executive Officer: D. Z.Head Of Partnerships: C. W.Head Of Customer Service: B. J.. Explore Whistle's employee directory with LeadIQ.

What industry does Whistle belong to?

Minus sign iconPlus sign iconWhistle operates in the Advertising Services industry.

What technology does Whistle use?

Minus sign iconPlus sign iconWhistle's tech stack includes Google Display NetworkQlikTravis CIHeadspaceMauticBambooHRX-Content-Type-OptionsNginx.

What is Whistle's email format?

Minus sign iconPlus sign iconWhistle's email format typically follows the pattern of First.Last@whistle.ltd. Find more Whistle email formats with LeadIQ.

When was Whistle founded?

Minus sign iconPlus sign iconWhistle was founded in 2020.
Whistle

Whistle

Advertising ServicesEngland, United Kingdom51-200 Employees

🚀 Whistle: Sales Development and Go To Market Services that support Global Growth 🌍

At Whistle, our mission is to fuel the success of fast-growing companies by giving them a competitive edge. Led by CEO David Zeff and COO Yonah Zeff, with a wealth of experience in SaaS sales and three successful tech exits, we have built a proven and trusted team of nearly 100 people that drives results in every timezone.

💰 With our help, our customers have raised over $2Bn in funding and continue to generate a staggering $15M per month in pipeline sourced from Whistle's Appointment Setters. 

🌐 Our secret to success lies in our diverse and talented team. From visionary leaders to dedicated experts in Management, Operations, Data Research, Brand Marketing, Sales, and Sales Development, we work seamlessly to support companies from all over the world.

If you want to know more about how we can support your Go To Market strategy, hop over to our website. 

Ready to unlock opportunities for your business? Let's go!

Section iconCompany Overview

Headquarters
201 Haverstock Hill London, England NW3 4QG GB
Website
linktr.ee
SIC Code
8742 - Management Consulting Services
NAICS Code
541613 - Marketing Consulting Services
Founded
2020
Employees
51-200

Section iconMedia & News

Section iconFunding & Financials

  • $10M$25M

    Whistle's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    Whistle's revenue is estimated to be in the range of $10M$25M

Company Leadership

  • Stylized image of a person
    D. Z.
    Chief Executive Officer
    Phone icon
    Mobile Phone
  • Stylized image of a person
    C. W.
    Head Of Partnerships
    Phone icon
    Mobile Phone
  • Stylized image of a person
    B. J.
    Head Of Customer Service
    Phone icon
    Mobile Phone
  • Stylized image of a person
    Y. Z.
    Coo And Co-Founder
    Phone icon
    Mobile Phone
  • Stylized image of a person
    T. B.
    Owner Operator
    Phone icon
    Mobile Phone

Employee Directory

  • Stylized image of a person
    L. C.
    Human Resources Director
    Phone icon
    Mobile Phone
  • Stylized image of a person
    L. C.
    Human Resources Director
    Phone icon
    Mobile Phone
  • Stylized image of a person
    C. W. S.
    Team Leader
    Phone icon
    Mobile Phone
  • Stylized image of a person
    T. D.
    Senior Account Manager
    Phone icon
    Mobile Phone
  • Stylized image of a person
    B. M.
    Human Resources Operations Manager
    Phone icon
    Mobile Phone

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