What departments does Estech Systems, Inc. (ESI) have?

Estech Systems, Inc. (ESI) has employees across 13 departments including Sales, Accounting, Operations, Marketing, Information Technology.

What is the largest department at Estech Systems, Inc. (ESI)?

The largest department at Estech Systems, Inc. (ESI) is Sales with 5 employees.

Where are Estech Systems, Inc. (ESI) employees located globally?

Estech Systems, Inc. (ESI) has employees across 5 continents and 5 countries including Cameroon, Iran, Poland, United States Of America, Brazil.

How has Estech Systems, Inc. (ESI)'s team size changed over time?

Estech Systems, Inc. (ESI)'s team has decreased from approximately 120 to 117 employees based on available data.

Estech Systems, Inc. (ESI) Employee Directory

TelecommunicationsTexas, United States51-200 Employees

Estech Systems, Inc. (ESI) is a mid-sized telecommunications provider headquartered in Plano, Texas, founded in 1987. It offers business phone systems designed to scale with growth, delivering both cloud-based and on-premises VoIP options alongside access control features. The company emphasizes integrated, intuitive solutions that pair voice communications with security capabilities for its customers and partners.

ESI serves growing organizations seeking flexible, unified communications that can be deployed in the cloud or on-site. As a Crexendo company, it operates within a broader cloud communications ecosystem. In 2024, the company partnered with Mole Street to automate data synchronization from Rev.io to HubSpot, enabling alignment of billing data with customer communications.

Estech Systems, Inc. (ESI) Global Highlights

North America
173

United States Of America
173

Africa
1

Cameroon
1

Asia
1

Iran
1

Europe
1

Poland
1

South America
1

Brazil
1

Estech Systems, Inc. (ESI)'s Leadership

D. B.
Chief Executive Officer
Mobile Phone
Email
J. L.
Owner
Mobile Phone
Email
J. H.
Vice President, Sales
Mobile Phone
Email
E. L.
Senior Vice President
Mobile Phone
Email
R. M.
Head, Cloud Infrastructure
Mobile Phone
Email
T. S.
Director Of National Accounts
Mobile Phone
Email
J. S.
Director Of Operations
Mobile Phone
Email
C. G.
Director Of Marketing
Mobile Phone
Email

Estech Systems, Inc. (ESI) Employee Metrics

100%

50%

0%

2026

2025

Engineering
Accounting
Support
Program & Project Management
Product Management
Other
Business Development

Contact profiles from Estech Systems, Inc. (ESI)

Name

Title

Contact Info

Location

Last Update

D. B.
Chief Executive Officer
Mobile Phone
Email
Oct 18, 2024
J. L.
Owner
Mobile Phone
Email
Oct 22, 2024
J. H.
Vice President, Sales
Mobile Phone
Email
United StatesMissouri
May 06, 2026
E. L.
Senior Vice President
Mobile Phone
Email
Oct 17, 2024
R. M.
Head, Cloud Infrastructure
Mobile Phone
Email
United StatesDistrict of Columbia
Mar 17, 2025
T. S.
Director Of National Accounts
Mobile Phone
Email
United StatesFlorida
Apr 10, 2026
J. S.
Director Of Operations
Mobile Phone
Email
United States
Jun 20, 2026
C. G.
Director Of Marketing
Mobile Phone
Email
Jun 25, 2026
D. B.
Director - Information Technology
Mobile Phone
Email
UNITED STATES
Jan 30, 2026
J. H.
Director - Information Technology
Mobile Phone
Email
Oct 17, 2024

Frequently Asked Questions

What is Estech Systems, Inc. (ESI) known for?

Estech Systems, Inc. (ESI) was founded in 1987 operates in the Telecommunications industry. The company's main headquarters is located in 6275 West Plano Parkway Suite 500 Plano, Texas United States; you can contact the main corporate office by phone at

+1-972-422-****

. Explore Estech Systems, Inc. (ESI)'s company overview page for more information.

What is Estech Systems, Inc. (ESI)'s most common email format?

Estech Systems, Inc. (ESI) employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Estech Systems, Inc. (ESI) email formats with LeadIQ.

How many employees does Estech Systems, Inc. (ESI) have currently?

Estech Systems, Inc. (ESI) has approximately 149 employees as of June 2026. These team members are located across 5 continents, including North AmericaAfricaAsia.

Who are Estech Systems, Inc. (ESI)'s key employees and leadership?

As of June 2026, Estech Systems, Inc. (ESI)'s key employees include:

Chief Executive Officer: D. B.
Owner: J. L.
Vice President, Sales: J. H.
Senior Vice President: E. L.
Head, Cloud Infrastructure: R. M.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Everything for prospecting,
in one platform.

What you can expect from LeadIQ:

B2B data verified in real-time
Sync data to your CRM, & add it to an outreach sequence in one click
Integrations with your tech stack for optimal efficiency
A patented AI cold email generator
Account & contact-level job change tracking

Estech Systems, Inc. (ESI) Employee Directory

Find Estech Systems, Inc. (ESI) employees' phone numbers or email addresses

Name search is limited — try advanced search instead