Insights

Internal comms focus Zelo specializes in streamlining internal communications by delivering updates across multiple channels (email, SMS, Slack, MS Teams). This presents a sales opportunity to cross-sell to mid-market companies seeking unified, multi-channel employee messaging and higher message reach.

Growth potential With a revenue range of 1M to 10M and a small team size (11-50 employees), Zelo is likely in an early-to-growth stage. They may benefit from scalable, enterprise-grade features and pricing plans that accommodate company growth and larger user bases, offering expansion opportunities for a larger HRIS or collaboration stack.

Product evolution Zelo released Zelo 2.0 in 2021, indicating ongoing product development and a willingness to invest in platform improvements. This suggests openness to pilots, professional services, and integrations that enhance adoption and value realization.

Tech and integrations Their tech stack includes analytics, scheduling, engagement, and UI libraries (Facebook Pixel, Google Analytics, Intercom, Calendly, PWA, PHP, Lua). This indicates readiness for integration-led sales motions and potential fit with CRM, analytics, and productivity tool ecosystems to extend reach.

Competitive positioning Operating in the internal communications space with competitors of varying sizes, Zelo’s emphasis on multi-channel distribution positions them to target mid-market or enterprise customers seeking efficient internal updates. A value proposition around measurable reach and tracking could differentiate in deals with HR, IT, or communications teams.

Zelo Tech Stack

Zelo uses 8 technology products and services including Facebook Pixel, Calendly, Intercom, and more. Explore Zelo's tech stack below.

  • Facebook Pixel
    Analytics
  • Calendly
    Appointment Scheduling
  • Intercom
    Live Chat
  • PWA
    Miscellaneous
  • PHP
    Programming Languages
  • Lua
    Programming Languages
  • shadcn/ui
    UI Frameworks
  • Google Analytics
    Web Analytics

Zelo's Email Address Formats

Zelo uses at least 1 format(s):
Zelo Email FormatsExamplePercentage
First@zeloapp.comJohn@zeloapp.com
100%

Frequently Asked Questions

What is Zelo's stock symbol?

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Zelo is a publicly traded company; the company's stock symbol is EST.WA.

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

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Zelo's official website is zeloapp.com and has social profiles on LinkedIn.

What is Zelo's NAICS code?

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Zelo's NAICS code is 5112 - Software Publishers.

How many employees does Zelo have currently?

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As of July 2026, Zelo has approximately 18 employees across 3 continents, including North AmericaSouth AmericaEurope. Key team members include Founder & Ceo: H. J. S.Founder & Coo: S. Y.Founder And General Manager: B. C.. Explore Zelo's employee directory with LeadIQ.

What industry does Zelo belong to?

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Zelo operates in the Software Development industry.

What technology does Zelo use?

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Zelo's tech stack includes Facebook PixelCalendlyIntercomPWAPHPLuashadcn/uiGoogle Analytics.

What is Zelo's email format?

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Zelo's email format typically follows the pattern of First@zeloapp.com. Find more Zelo email formats with LeadIQ.

When was Zelo founded?

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Zelo was founded in 2017.
Zelo logo

Zelo

Software DevelopmentCalifornia, United States11-50 Employees

Zelo is a software development company based in San Francisco, California, focused on improving internal communications within organizations. Its platform enables users to compose, distribute, and track company updates across multiple channels, including email, SMS, Teams, and Slack, with the aim of optimizing reach and engagement. By allowing messages to be routed through preferred communication channels, Zelo targets teams that need efficient, multi-channel messaging to keep employees informed. The company positions itself in the internal communications and collaboration software space, providing a solution that helps organizations monitor and improve how information circulates internally. In addition to its core offering, Zelo announced the launch of Zelo 2.0 in June 2021, signaling an ongoing product evolution to support more effective corporate communications.

Section iconCompany Overview

Stock Symbol
EST.WA
NAICS Code
5112 - Software Publishers
Founded
2017
Employees
11-50

Section iconFunding & Financials

  • $1M$10M

    Zelo's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    Zelo's revenue is estimated to be in the range of $1M$10M

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