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Company · Business voip telephony

ESI

As of 30 October 2026, ESI has 6 open roles (0 new in 30 days), its sales team is hiring most, and its postings name HubSpot, Microsoft Excel and Microsoft Word as the tools the team works in.

As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Plano, United States51-200 employees10M-50M revenue, est.B2Besi-estech.com ↗LinkedIn ↗
Headquarters
Plano, Texas, United States
Employees
51-200 employees (linkedin)
Sells to
healthcare, law firms, healthcare organizations
Certifications on site
Site languages
EN
Career system
Ownsite_html
6open roles · 0 new in 30 days
14tools named in postings
hiring locations
0change signals read in postings
02What they do, whom they sell to, who else does it

ESI in one screen

Read from esi-estech.com: what the company does, the customers it names, the buyers we can actually see, and the companies that sell the same thing.

What ESI does

ESI is a service provider that offers hosted VoIP telephony and cloud contact center solutions for businesses and enterprises. Its offerings include the eCloud PBX cloud solution, eSIP Evolution Series on-premises systems, ePhone 8/4x/3 phones, econsole dashboard, eTeams connector, eFax, and eMobile mobile calling app. It also serves healthcare and law firms.

ecloud pbx cloud solutioneSIP evolution series on-premisesePhone 8, 4x, 3 phoneseconsole online dashboardeTeams connectoreFax faxing applicationeMobile mobile calling appePhone Go 2 smartphone app
Whom it sells to

Named on the site: healthcare, law firms, healthcare organizations.

Who else sells this

Nearest companies by what they do, sell and whom they serve, 51+ employees. 591 scored.

OneCloudUnited States · 51-200 employeesVertical CommunicationsUnited States · 201-500 employeesVoIPcoUnited States · 51-200 employeesSothis TelecomBrazil · 11-50 employeesSiiPoland · 5001-10000 employeesMedtel CommunicationsUnited States · 51-200 employees
03Tech stack, with the evidence

What ESI says it runs

Tools named in the company's own postings as the team's systems, with the sentence that says so. What the website and DNS show is listed separately.

HubSpotSales · high confidence · 1 posting
• Understand all internal software tools including Excel, MAS 500, HubSpot and maintain timely and accurate database updates
Strategic Sales Specialist · first seen 2026-10-26
Microsoft ExcelSales · medium confidence · 4 postings
• Understand and be able to use all internal software tools such as Word, Excel, Slack, Odoo, etc.
Business Development Representative (Telemarketer) · first seen 2026-10-26
Microsoft WordSales · medium confidence · 4 postings
• Understand and be able to use all internal software tools such as Word, Excel, Slack, Odoo, etc.
Business Development Representative (Telemarketer) · first seen 2026-10-26
AsteriskCustomer service & success · medium confidence · 2 postings
• Previous IP PBX experience, myPPX , Digium, Altigen, Asterisk
Cloud Support Representative · first seen 2026-10-26
Microsoft OutlookSales · medium confidence · 2 postings
• Must be knowledgeable of MS Office (Excel, Outlook, Word, PowerPoint)
National Accounts Sales Representative · first seen 2026-10-26
Microsoft PowerPointSales · medium confidence · 2 postings
• Must be knowledgeable of MS Office (Excel, Outlook, Word, PowerPoint)
National Accounts Sales Representative · first seen 2026-10-26
digiumCustomer service & success · medium confidence · 1 posting
• Previous IP PBX experience, myPPX , Digium, Altigen, Asterisk
Cloud Support Representative · first seen 2026-10-26
kayakoCustomer service & success · medium confidence · 1 posting
• Log and update customer interactions in the Kayako Ticket System.
Cloud Support Representative · first seen 2026-10-26
Microsoft OfficeSales · medium confidence · 1 posting
• Must be knowledgeable of MS Office (Excel, Outlook, Word, PowerPoint)
National Accounts Sales Representative · first seen 2026-10-26
OdooSales · medium confidence · 1 posting
• Understand and be able to use all internal software tools such as Word, Excel, Slack, Odoo, etc.
Business Development Representative (Telemarketer) · first seen 2026-10-26
SIPCustomer service & success · medium confidence · 1 posting
• Solid understanding of cloud communications technologies (PBX, VoIP, SIP, APIs, unified comm).
Cloud Support Representative · first seen 2026-10-26
SlackSales · medium confidence · 1 posting
• Understand and be able to use all internal software tools such as Word, Excel, Slack, Odoo, etc.
Business Development Representative (Telemarketer) · first seen 2026-10-26
WiresharkCustomer service & success · medium confidence · 1 posting
• Ability to review Wireshark packet captures
Cloud Support Representative · first seen 2026-10-26
Androidlow confidence · 1 posting
• Experience with Mobile App development (Android and iOS) a huge plus
Product Manager for eSIP PBX Series · first seen 2026-10-26
On the website or in DNS

Vendors whose code loads on esi-estech.com or whose records sit in its DNS. Page plumbing (libraries, fonts, consent banners) is left out.

HubSpotseen on esi-estech.comAnthropicseen on esi-estech.com
google_cloud_dns_google_domainsseen on esi-estech.com
Google Workspaceseen on esi-estech.com
Microsoft 365seen on esi-estech.com
SharpSpringseen on esi-estech.comsorrytmseen on esi-estech.com
04Hiring

6 open roles, 0 opened in 90 days

Read hourly from the company's career system. Open roles and new roles in the last 30 days, by team. Companies hiring sales in United States →

05Signals

What is changing, read from the postings

Intents are events the employer states about itself, each with the sentence and the posting it came from.

No change signals read in the current postings.

Decision makers at ESI, with verified e-mails, and every change the moment it is posted.

Sales, marketing and IT leaders by function. Add ESI to a monitor and get a webhook when a role opens, a tool appears or a signal is read.

Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

06Lookalikes

Companies like ESI

Nearest by what they do, what they sell and whom they sell to, 51+ employees. 6 of 591 scored.

OneCloudBusiness voip telephony · United States51-200 employees
Vertical CommunicationsBusiness voip telephony · United States201-500 employees
VoIPcoBusiness voip telephony · United States51-200 employees
Sothis TelecomIt & telecoms provider · Brazil11-50 employees
SiiIT services & consulting · Poland5001-10000 employees
Medtel CommunicationsBusiness voip telephony · United States51-200 employees
07Profile

From the company's own website

Legal nameESI
IndustryTechnology & software · Business voip telephony
Offeringsecloud pbx cloud solution · eSIP evolution series on-premises · ePhone 8, 4x, 3 phones · econsole online dashboard · eTeams connector · eFax faxing application · eMobile mobile calling app · ePhone Go 2 smartphone app
Target customershealthcare · law firms · healthcare organizations
Geographic scopeunknown · also Canada
Reviews found
Public contact points4 role addresses · 3 phone numbers
Pages readprivacy, pricing, home, imprint, contact, references, services
Datescrawled 2026-09-06 · profiled 2026-09-12 · hiring built 2026-10-27
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

ESI (Plano, United States, 51-200 employees) has 6 open roles, 0 new in 30 days, and names 14 tools in its postings. (Breaknorm, 30 October 2026, https://breaknorm.co/company/esi-estech.com)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • ProfileBuilt from esi-estech.com: summary, offerings, customers, certifications and contact points are extracted from its pages, with a confidence score per field.
  • HiringRead hourly from the company's Ownsite_html career site; reposts collapse into one record.
  • Tech stackTools the employer's own text names as the team's systems, with the quote; website scripts counted separately.
  • HeadcountLinkedIn where known, otherwise estimated from the site.
FAQ

ESI: questions

Does ESI use HubSpot?

Yes, by the company's own words: 1 posting name it, first seen 2026-10-26, in the sales team.

Is ESI hiring?

6 open roles as of 30 October 2026, 0 opened in the last 30 days and 0 closed. The largest team hiring is sales.

Where does this profile come from?

From esi-estech.com itself: we crawled it on 2026-09-06, built the profile on 2026-09-12, and read its career site (Ownsite_html) hourly since. Headcount is from LinkedIn.

Who should I write to at ESI?

The people are behind the login: decision makers by function, verified at the mail server when you open them. 4 public role addresses from the site are there too.

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