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Whistle Logo
Whistle CB Rank
325269
Heat Score
69
Whistle is a global Sales Development Agency empowering fast-growing companies with operations, teams and strategies to generate revenue.
Founded
obfuscation
Private London, England, United Kingdom51-100 whistle.ltd/
Business Development
Digital Marketing
Direct Sales
Enterprise
Lead Generation
Multi-level Marketing
Sales
Overview

Whistle
Heat Score
69

Growth Score
pts
in past quarter
Heat Score 69
13 pts
in past quarter

Company Performance Metrics

Score
Trend
AI Content may contain mistakes and is not legal, financial or investment advice.Learn more.
Growth Score - The measure of growth based on company activity, operational metrics, and investments
Growth Trend - The change in the growth score over the given time period
Heat Score - The measure of the market interest, media activity, and Crunchbase profile activity
Heat Trend - The change in the heat score over the given time period
Learn More >
Recent Milestones
Raised Funding Round
Jan 1, 1970
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Raised Funding Round
Jan 1, 1970
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See more interactive data and historical milestones on desktop for the best experience

About Whistle

CB Rank
325269
Whistle is a global Sales Development Agency empowering fast-growing companies with operations, teams and strategies to generate revenue.
Founded
obfuscation
Private London, England, United Kingdom51-100 whistle.ltd/
Business Development
Digital Marketing
Direct Sales
Enterprise
Lead Generation
Multi-level Marketing
Sales

Details

Legal Name Alumnilab.ltd
Also Known As callwhistle, whistle.ltd
Operating Status Active
Company Type For Profit
Founders  David Zeff, Yonah Zeff
About the Company
We are a global SDR Agency that works with startups and scale-ups throughout the US, UK, Europe, India, Israel and Australia to drive increased and predictable sales through SDR, sales and marketing services. Our aim is to give fast-growing companies a better chance of success in scaling global growth.
Phone Number +1 (786) 400 2668
Contact Email sales@callwhistle.com
Predictions & Insights

Growth Prediction

See this Growth Prediction

Products & Services

SDR Agency
A fully-managed sales development service that integrates with client systems to run tailored outbound sales campaigns using dedicated SDR teams.
Appointment Setting
A service providing trained sales experts to qualify inbound leads and schedule meetings, helping companies manage lead flow without internal hiring.

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Financials
Market Intelligence
People
View Profiles & Contacts
Headcount 51-100 Board Members and Advisors 1

Board Members and Advisors

News
Technology
View Tech Report

Monthly Web Visits

2,004
100.8%
 in past month

Active Website Tech Count

23Whistle is actively using 23 technologies for its website, according to BuiltWith. These include Viewport Meta, IPhone / Mobile Compatible, and  HSTS.
Sub-Organizations
Frequently Asked Questions

Where is Whistle's headquarters? Whistle is located in London, England, United Kingdom.Who are Whistle's competitors? Alternatives and possible competitors to Whistle may include LeadFuze, Belkins, and  CIENCE.
Who We Are
What We Do
Helpful Links
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