Insights

Unified Communications Growth CallWave operates in unified communications with HD audio conferencing, online collaboration across devices, and memory storage. This positions opportunities for upselling to larger businesses seeking enterprise-grade UCaaS, from mobility-focused teams to dispersed remote workforces.

Publicly Traded Credibility As a NASDAQ listed company (CALL) with a multi-decade presence, CallWave can be a lower-risk option for mid-market buyers evaluating vendor stability and long-term support, potentially shortening procurement cycles for enterprise deals.

Global and Local Footprint Headquartered in San Francisco with offices in Santa Barbara and Sofia, Bulgaria, CallWave combines US-based operations with offshore development or support capabilities, suggesting opportunities for nearshore/onsite services, regional pricing, and multinational deployment projects.

Diverse UC Product Suite Beyond FUZE, products like Internet Fax, Voicemail-To-Text, Internet Answering Machine, and HD Audio Conferencing indicate cross-sell opportunities to existing customers and a path to a broader digital communications stack for SMBs scaling to mid-market.

Mid-Market Revenue Potential With estimated revenue in the range of 50 to 100 million and a workforce of 51-200, CallWave sits in the mid-market sweet spot where sales motions can emphasize RFP responses, integration capabilities, and rapid deployment to drive faster deal cycles.

CallWave Tech Stack

CallWave uses 8 technology products and services including Google AdSense, Open Graph, Priority Hints, and more. Explore CallWave's tech stack below.

  • Google AdSense
    Advertising
  • Open Graph
    Content Management System
  • Priority Hints
    Performance
  • Lua
    Programming Languages
  • YouTube
    Video Players
  • X-Content-Type-Options
    Web & Portal Technology
  • DigitalOcean Web Hosting
    Web Hosting
  • OpenResty
    Web Servers

CallWave's Email Address Formats

CallWave uses at least 1 format(s):
CallWave Email FormatsExamplePercentage
FirstLast@callwave.comJohnDoe@callwave.com
61%
FLast@callwave.comJDoe@callwave.com
26%
First.Last@callwave.comJohn.Doe@callwave.com
13%

Frequently Asked Questions

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

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CallWave's official website is callwave.com and has social profiles on LinkedInCrunchbase.

How much revenue does CallWave generate?

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As of August 2026, CallWave's annual revenue is estimated to be $50M - $100M.

What is CallWave's SIC code NAICS code?

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CallWave's SIC code is 4812 - Radiotelephone Communications NAICS code is 517 - Telecommunications.

How many employees does CallWave have currently?

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As of August 2026, CallWave has approximately 130 employees across 5 continents, including AsiaNorth AmericaEurope. Key team members include Qa: F. F.Junior Broker: E. O.. Explore CallWave's employee directory with LeadIQ.

What industry does CallWave belong to?

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CallWave operates in the Telecommunications industry.

What technology does CallWave use?

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CallWave's tech stack includes Google AdSenseOpen GraphPriority HintsLuaYouTubeX-Content-Type-OptionsDigitalOcean Web HostingOpenResty.

What is CallWave's email format?

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CallWave's email format typically follows the pattern of FirstLast@callwave.com. Find more CallWave email formats with LeadIQ.

When was CallWave founded?

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CallWave was founded in 1998.
CallWave logo

CallWave

TelecommunicationsUnited States51-200 Employees

CallWave is a United States-based telecommunications company that provides Internet and mobile–based unified communications solutions designed to support mobile professionals in communicating and collaborating from anywhere and on any device. Its FUZE platform enables high-definition online collaboration across devices, offering synchronized content, audio conferencing, media storage, presence, and persistent chat within a single web application. The company also offers Internet Fax, Voicemail-To-Text, Internet Answering Machine, and HD Audio Conferencing, catering to organizations seeking integrated communications tools. Founded in 1998 and headquartered in San Francisco, with additional offices in Santa Barbara and Sofia, Bulgaria, CallWave serves a global market and positions itself within the broader unified communications and collaboration space.

Section iconCompany Overview

SIC Code
4812 - Radiotelephone Communications
NAICS Code
517 - Telecommunications
Founded
1998
Employees
51-200

Section iconFunding & Financials

  • $50M - $100M

    CallWave's revenue is estimated to be in the range of $50M - $100M

Section iconFunding & Financials

  • $50M - $100M

    CallWave's revenue is estimated to be in the range of $50M - $100M

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