Insights

Open Access Opportunity Underline operates open-access fiber networks and multi-purpose infrastructure, presenting a sales angle to utility commissions, city governments, and anchor institutions seeking neutral networks and shared services.

Multi-Purpose Pipeline Their technology enables private financing, construction, and operation of multi-tenant networks for internet, water, and energy applications, signaling cross-sell potential to municipal utilities, water agencies, and energy providers.

Expansion Momentum Active deployments in Colorado with a public rollout in El Paso County covering over 100,000 planned gigabit connections indicate rapid growth and a ready-market for related backhaul, service provider integration, and consumer connectivity offerings.

Strategic Funding Backed by notable investors and past financing rounds including multi-million seed funding, there is credibility to support customized financing solutions for new deployments and partners pursuing open-access and shared-use models.

Competitive Landscape As a private open-access player positioning against traditional incumbents, Underline offers a compelling partner story for providers, municipalities, and developers looking to differentiate with neutral, scalable fiber assets.

Underline Tech Stack

Underline uses 8 technology products and services including Microsoft Advertising, Continuous Delivery, Apple iCloud Mail, and more. Explore Underline's tech stack below.

  • Microsoft Advertising
    Advertising
  • Continuous Delivery
    Continuous Integration
  • Apple iCloud Mail
    Email
  • Google Fonts API
    Font Scripts
  • TriNet
    Human Resource Management System
  • Python
    Programming Languages
  • CSS
    Web Tools And Plugins
  • Facebook
    Widgets

Underline's Email Address Formats

Underline uses at least 1 format(s):
Underline Email FormatsExamplePercentage
FLast@underline.comJDoe@underline.com
80%
First@underline.comJohn@underline.com
19%
FL@underline.comJD@underline.com
1%

Frequently Asked Questions

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

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Underline's official website is underline.com and has social profiles on LinkedInCrunchbase.

How much revenue does Underline generate?

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As of July 2026, Underline's annual revenue is estimated to be $500M - $1B.

What is Underline's NAICS code?

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Underline's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Underline have currently?

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As of July 2026, Underline has approximately 86 employees across 4 continents, including North AmericaEuropeAsia. Key team members include Chief Commercial Officer (cco): T. M.Head Of Software Engineering: J. L.Senior Vice President Group Account Leader: K. W.. Explore Underline's employee directory with LeadIQ.

What industry does Underline belong to?

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Underline operates in the Technology, Information and Internet industry.

What technology does Underline use?

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Underline's tech stack includes Microsoft AdvertisingContinuous DeliveryApple iCloud MailGoogle Fonts APITriNetPythonCSSFacebook.

What is Underline's email format?

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Underline's email format typically follows the pattern of FLast@underline.com. Find more Underline email formats with LeadIQ.

How much funding has Underline raised to date?

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As of July 2026, Underline has raised $35M in funding. The last funding round occurred on Sep 30, 2022 for $35M.

When was Underline founded?

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Underline was founded in 2019.
Underline logo

Underline

Technology, Information and InternetTexas, United States51-200 Employees

Underline is a Dallas-based technology company focused on building and operating fiber networks that connect communities. Its work centers on expanding equitable internet access and enabling essential public infrastructure, including secure water systems and responsible energy creation, through multi-purpose networks. The company provides an end-to-end solution to engineer, privately finance, construct, and operate these networks, aiming to reduce the deployment burden on communities.

Its networks can be licensed and deployed atop existing infrastructure to create shared, multi-tenant fiber capacity for multiple users and applications. The company targets municipalities and utilities seeking open-access fiber solutions to support public services and new providers. In April 2026, InCoax Networks AB announced a client engagement with Underline to deploy open-access fiber networks in Colorado and El Paso County, covering more than 100,000 planned gigabit-plus connections.

Section iconCompany Overview

NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2019
Employees
51-200

Section iconFunding & Financials

  • $35M

    Underline has raised a total of $35M of funding over 3 rounds. Their latest funding round was raised on Sep 30, 2022 in the amount of $35M.

  • $500M - $1B

    Underline's revenue is estimated to be in the range of $500M - $1B

Section iconFunding & Financials

  • $35M

    Underline has raised a total of $35M of funding over 3 rounds. Their latest funding round was raised on Sep 30, 2022 in the amount of $35M.

  • $500M - $1B

    Underline's revenue is estimated to be in the range of $500M - $1B

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