Insights

Market Leadership Who’s Calling is the industry leader in call tracking and marketing analytics with over 4,000 clients across diverse sectors, including automotive, real estate, and lead management, positioning it as a preferred partner for businesses heavily reliant on phone-based sales and customer interactions.

Growth and Expansion Recent updates to mobile and desktop applications demonstrate ongoing product innovation, indicating a commitment to enhancing user experience and staying competitive in the rapidly evolving marketing analytics space.

Financial Strength With an estimated revenue between 100 and 250 million dollars and a substantial client base, Who’s Calling exhibits strong financial health, providing confidence for upselling premium solutions and expanding into new markets.

Technology Stack Its use of integrated tools like Google Tag Manager, LinkedIn Insight Tag, and various social media integrations suggests modern, data-driven capabilities, making it easier to target organizations looking to optimize multi-channel marketing campaigns.

Potential Client Expansion Given its broad industry reach and established leadership, there are significant opportunities to promote advanced analytics solutions or customized call tracking services to existing clients and tap into vertical markets where phone-based touchpoints are crucial.

Who's Calling Tech Stack

Who's Calling uses 8 technology products and services including Linkedin Insight Tag, Linkedin Sign-in, Lightbox, and more. Explore Who's Calling's tech stack below.

  • Linkedin Insight Tag
    Analytics
  • Linkedin Sign-in
    Identity Verification
  • Lightbox
    Javascript Libraries
  • jQuery
    Javascript Libraries
  • Windows Server
    Operating Systems
  • Google Tag Manager
    Tag Management
  • Twitter
    Widgets
  • Google Plus
    Widgets

Who's Calling's Email Address Formats

Who's Calling uses at least 1 format(s):
Who's Calling Email FormatsExamplePercentage
FLast@whoscalling.comJDoe@whoscalling.com
88%
Last@whoscalling.comDoe@whoscalling.com
9%
FirstL@whoscalling.comJohnD@whoscalling.com
1%
F.Last@whoscalling.comJ.Doe@whoscalling.com
2%

Frequently Asked Questions

What is Who's Calling's phone number?

Minus sign iconPlus sign icon
You can contact Who's Calling's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Who's Calling's official website and social media links?

Minus sign iconPlus sign icon
Who's Calling's official website is whoscalling.com and has social profiles on LinkedIn.

How much revenue does Who's Calling generate?

Minus sign iconPlus sign icon
As of December 2025, Who's Calling's annual revenue is estimated to be $25M.

What is Who's Calling's SIC code NAICS code?

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

How many employees does Who's Calling have currently?

Minus sign iconPlus sign icon
As of December 2025, Who's Calling has approximately 201 employees across 4 continents, including North AmericaAsiaAfrica. Key team members include Founder And Chief Executive Officer: J. H.Senior Vice President Of Advertising: S. W.Independent Contractor And Consultant Creative Director, Designer And Web Developer: A. M.. Explore Who's Calling's employee directory with LeadIQ.

What industry does Who's Calling belong to?

Minus sign iconPlus sign icon
Who's Calling operates in the Advertising Services industry.

What technology does Who's Calling use?

Minus sign iconPlus sign icon
Who's Calling's tech stack includes Linkedin Insight TagLinkedin Sign-inLightboxjQueryWindows ServerGoogle Tag ManagerTwitterGoogle Plus.

What is Who's Calling's email format?

Minus sign iconPlus sign icon
Who's Calling's email format typically follows the pattern of FLast@whoscalling.com. Find more Who's Calling email formats with LeadIQ.

When was Who's Calling founded?

Minus sign iconPlus sign icon
Who's Calling was founded in 1998.

Who's Calling

Advertising ServicesTexas, United States201-500 Employees

Since its founding in 1998, Who’s Calling has established itself as the industry-leader in call tracking and marketing analytics technology. 

Who’s Calling started out as a pioneer in the call measurement and monitoring industry by assisting clients in reducing their marketing expenditures through the tracking of incoming calls. Then we went on to add numerous other products and features to including multi-channel marketing solutions and pay per click call tracking. Now Who’s Calling offers a wide variety of call tracking and marketing enhancement services designed to help businesses streamline their marketing efforts and thereby ultimately increase their overall marketing Return On Investment (ROI). 

With over 4,000 clients in over 30 different industries, Who’s Calling is the largest provider of call tracking services and the business partner that you need on your team. Our clients include sixteen of the top automotive groups, twenty of the nation's largest lead management and CRM providers, and three of the top five home builders. Any business that utilizes the phone as an important part of its sales and services will benefit from Who’s Calling

Section iconCompany Overview

Phone number
SIC Code
8742 - Management Consulting Services
NAICS Code
541613 - Marketing Consulting Services
Founded
1998
Employees
201-500

Section iconFunding & Financials

  • $100M$250M

    Who's Calling's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    Who's Calling's revenue is estimated to be in the range of $100M$250M

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.