Insights

Open Access Opportunity Underline operates open-access fiber networks with deployments in Colorado and El Paso County, targeting municipalities and utilities seeking neutral-host networks; pursue partnerships to accelerate broadband builds and regional digital inclusion.

Financing Solution Underline offers end-to-end ownership: engineering, private financing, construction, and operation of multi-purpose networks, enabling cities and utilities with budget constraints to deploy critical infrastructure under a single provider.

Multi-Purpose Platform Underline’s technology can be licensed atop existing fiber to create multi-tenant, multi-purpose infrastructure for internet access, water system modernization, and responsible energy creation—cross-sell opportunities to utilities and municipal projects.

Scalable Deployments Recent deployments demonstrate the ability to scale to large programs, including plans for 100k gigabit-plus connections, appealing to regional broadband initiatives and large municipal projects.

Strategic Partnerships Backed by notable investors and a growing partner ecosystem (CTIconnect, InCoax), Underline can leverage alliances to access co-marketing, grant opportunities, and bundled procurement with other vendors.

Underline Tech Stack

Underline uses 8 technology products and services including AppNexus, Continuous Delivery, Amazon Simple Email Service, and more. Explore Underline's tech stack below.

  • AppNexus
    Advertising
  • Continuous Delivery
    Continuous Integration
  • Amazon Simple Email Service
    Email
  • Google Fonts API
    Font Scripts
  • Google Cloud Platform
    Infrastructure As A Service
  • 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

Where is Underline's headquarters located?

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Underline's main headquarters is located at Dallas, Texas United States. The company has employees across 5 continents, including North AmericaEuropeAsia.

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.

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 May 2026, Underline has approximately 90 employees across 5 continents, including North AmericaEuropeAsia. Key team members include Chief Commercial Officer (cco): T. M.Head Of Sales: S. P. W.Head Of Software Engineering: J. L.. 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 AppNexusContinuous DeliveryAmazon Simple Email ServiceGoogle Fonts APIGoogle Cloud PlatformPythonCSSFacebook.

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.

When was Underline founded?

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Underline was founded in 2019.

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

Headquarters
Dallas, Texas United States
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2019
Employees
51-200

Section iconFunding & Financials

  • $500M$1B

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

Section iconFunding & Financials

  • $500M$1B

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

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