Insights

Targeted SMB Focus Deltathree operates with a lean team and serves tens of thousands of active users through both service provider/reseller and direct-to-consumer channels, indicating a focus on scalable, cost-effective VoIP solutions that appeal to small and mid-sized businesses seeking competitive telephony alternatives.

Private Label Potential The company offers a full spectrum of private label VoIP products and back-office services, presenting a clear cross-sell opportunity for MSPs and carriers seeking to white-label robust SIP-based telephony platforms, billing, fraud management, and provisioning.

Global Distribution With multi-channel distribution and reference to international consumer solutions like iConnectHere and Panasonic’s GLOBARANGE integration, there is potential to partner on global deployments, resell agreements, and expanded reach into enterprise and consumer markets.

Tech Stack Synergy Leveraging SIP technology, hosted VoIP, soft switches, and back-office tooling alongside a modern web, cloud, and database stack, Deltathree is well-positioned to pursue elastic cloud-based telephony enhancements, security, and analytics offerings for sales-oriented customers.

Growth and Funding Signals Revenue in the multi-million range and steady channel-based growth suggest readiness for continued investment in partnerships, channel programs, and joint go-to-market initiatives with other communications and technology providers seeking to augment their VoIP capabilities.

Similar companies to Deltathree

Deltathree Tech Stack

Deltathree uses 8 technology products and services including Cloudflare Web Optimizations, LiteSpeed Cache, WordPress, and more. Explore Deltathree's tech stack below.

  • Cloudflare Web Optimizations
    Analytics
  • LiteSpeed Cache
    Caching
  • WordPress
    Content Management System
  • MySQL
    Database
  • Cloudflare DNS
    Domain Name Services
  • Google Fonts API
    Font Scripts
  • jQuery UI
    Javascript Libraries
  • Microsoft ASP.NET
    Web Frameworks

Media & News

Deltathree's Email Address Formats

Deltathree uses at least 1 format(s):
Deltathree Email FormatsExamplePercentage
First.Last@deltathree.comJohn.Doe@deltathree.com
85%
FirstL@deltathree.comJohnD@deltathree.com
11%
First.MiddleLast@deltathree.comJohn.MichaelDoe@deltathree.com
4%

Frequently Asked Questions

Where is Deltathree's headquarters located?

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Deltathree's main headquarters is located at 224 West 35th Street Suite 1004 Floor 10 New York, New York 10001 United States. The company has employees across 4 continents, including AsiaNorth AmericaEurope.

What is Deltathree's phone number?

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You can contact Deltathree'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 Deltathree's official website and social media links?

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Deltathree's official website is deltathree.com and has social profiles on LinkedIn.

What is Deltathree's SIC code NAICS code?

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Deltathree's SIC code is 4812 - Radiotelephone Communications NAICS code is 517 - Telecommunications.

How many employees does Deltathree have currently?

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As of June 2026, Deltathree has approximately 40 employees across 4 continents, including AsiaNorth AmericaEurope. Key team members include Chief Executive Officer: P. C.Director Of Customer Operations: S. T.Senior Account Manager: A. M.. Explore Deltathree's employee directory with LeadIQ.

What industry does Deltathree belong to?

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Deltathree operates in the Telecommunications industry.

What technology does Deltathree use?

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Deltathree's tech stack includes Cloudflare Web OptimizationsLiteSpeed CacheWordPressMySQLCloudflare DNSGoogle Fonts APIjQuery UIMicrosoft ASP.NET.

What is Deltathree's email format?

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Deltathree's email format typically follows the pattern of First.Last@deltathree.com. Find more Deltathree email formats with LeadIQ.

When was Deltathree founded?

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Deltathree was founded in 1996.
Deltathree logo

Deltathree

TelecommunicationsNew York, United States11-50 Employees

Deltathree is a telecommunications company founded in 1996 that delivers integrated VoIP telephony services, products, hosted solutions, and related infrastructure. Its offerings are designed to provide high-quality Internet telephony as a cost-effective alternative to traditional phone services, serving tens of thousands of active users globally through both a Service Provider / Reseller channel and a direct-to-consumer channel. The firm supports service providers and resellers with a comprehensive set of private-label VoIP products and back-office capabilities, including billing, provisioning, and management, supported by SIP-based technology. Deltathree also maintains a consumer segment through its iConnectHere and joip brands, and their VoIP services are used by partners such as Panasonic for GLOBARANGE deployments. The company is based in New York, in the United States, and operates within the telecommunications industry, offering a full lifecycle from planning and deployment to ongoing network and back-office support.

Section iconCompany Overview

Headquarters
224 West 35th Street Suite 1004 Floor 10 New York, New York 10001 United States
Phone number
SIC Code
4812 - Radiotelephone Communications
NAICS Code
517 - Telecommunications
Founded
1996
Employees
11-50

Section iconMedia & News

Section iconFunding & Financials

  • $10M$25M

    Deltathree's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    Deltathree's revenue is estimated to be in the range of $10M$25M

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