Insights

Strategic Growth E Source has recently expanded through acquisitions (Opinion Dynamics and ILLUME Advising) and new leadership in data strategy, signaling a growth-by-acquisition and service-expansion strategy. This creates sales opportunities for integration services, advisory offerings, and cross-sell of research-backed optimization solutions to newly acquired clients and existing ones seeking broader capabilities.

Utility Focus With a core focus on utilities across the US and Canada and a stated mission to accelerate the energy transition, there is strong demand for solutions around grid optimization, customer experience, program evaluation, and sustainability reporting—areas ripe for upsell of analytics platforms, research subscriptions, and implementation services.

Technology Stack Existing tech usage includes Paycom, Atlassian, PHP and open source components, plus cloud/Linux environments. This suggests opportunities to offer integration, data engineering, and modernization services, as well as training and support packages for clients migrating to or optimizing utilities-focused platforms.

Financial Scale Revenue range of half a billion to one billion and a sizable employee base indicate significant enterprise-level buying power and complex procurement cycles. This supports targeting multi-project engagements, larger contracts, and multi-year deals with bundled services for research, consulting, and technology implementations.

Market Leadership Recent recognition at industry events and a track record of partnerships with utilities position E Source as a trusted market leader. Sales opportunities include expanding into brand and sustainability campaigns, utility ad awards programs, and advisory services around customer and grid decarbonization initiatives to reinforce competitive positioning.

E Source Tech Stack

E Source uses 8 technology products and services including Paycom, Atlassian, jQuery, and more. Explore E Source's tech stack below.

  • Paycom
    Applicant Tracking Systems
  • Atlassian
    Application Development & Management
  • jQuery
    Javascript Libraries
  • LangGraph
    Machine Learning
  • Ubuntu
    Operating Systems
  • Notion
    Page Builders
  • PHP
    Programming Languages
  • X-Content-Type-Options
    Web & Portal Technology

Media & News

E Source's Email Address Formats

E Source uses at least 1 format(s):
E Source Email FormatsExamplePercentage
First_Last@esource.comJohn_Doe@esource.com
95%
Last@esource.comDoe@esource.com
3%
FLast@esource.comJDoe@esource.com
2%

Frequently Asked Questions

Where is E Source's headquarters located?

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E Source's main headquarters is located at 1321 Upland Drive Suite 3413 Houston, Texas 77043 United States. The company has employees across 6 continents, including North AmericaAsiaAfrica.

What is E Source's phone number?

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You can contact E Source'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 E Source's stock symbol?

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E Source is a publicly traded company; the company's stock symbol is CTOS.

What is E Source's official website and social media links?

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E Source's official website is esource.com and has social profiles on LinkedIn.

What is E Source's SIC code NAICS code?

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E Source's SIC code is 7389 - Business Services, Not Elsewhere Classified NAICS code is 22 - Utilities.

How many employees does E Source have currently?

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As of June 2026, E Source has approximately 717 employees across 6 continents, including North AmericaAsiaAfrica. Key team members include Chief Executive Officer: J. E.Chief Executive Officer: C. G.Coo: C. A.. Explore E Source's employee directory with LeadIQ.

What industry does E Source belong to?

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E Source operates in the Utilities industry.

What technology does E Source use?

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E Source's tech stack includes PaycomAtlassianjQueryLangGraphUbuntuNotionPHPX-Content-Type-Options.

What is E Source's email format?

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E Source's email format typically follows the pattern of First_Last@esource.com. Find more E Source email formats with LeadIQ.

When was E Source founded?

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E Source was founded in 1986.
E Source logo

E Source

UtilitiesTexas, United States501-1000 Employees

E Source is a utilities-focused research and consulting firm based in Houston, Texas. It serves utilities across the United States and Canada by providing evidence-based insights to anticipate challenges and guide informed decisions. By blending in-depth research with practical expertise, the company helps utilities improve customer service, optimize the grid, and strengthen operations in a resource-constrained environment.

It targets utility leaders and their organizations, addressing the pressures to do more with less while maintaining reliability. In 2026, Arizona Water Company partnered with E Source, in cooperation with Itineris, to deploy a new UMAX CIS solution.

Section iconCompany Overview

Headquarters
1321 Upland Drive Suite 3413 Houston, Texas 77043 United States
Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
Stock Symbol
CTOS
NAICS Code
22 - Utilities
Founded
1986
Employees
501-1000

Section iconFunding & Financials

  • $500M$1B

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

Section iconFunding & Financials

  • $500M$1B

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

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