Company lists · Data refreshed November 2026

Top 25 Telecom software developers worldwide

Name: Telecom software developers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 3,074 companies tracked

RevenueBase identified 3,074 company matches for telecom software developers worldwide as of November 2026 and tracks 145,004 professional contacts across them, including 30,939 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for telecom software developers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for telecom software developers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

3,074Companies

145,004Contacts tracked

30,939Verified emails

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The 25 largest telecom software developers worldwide

Ranked by team size

Top 25 of 3,074 company matches for telecom software developers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Amdocs	Exact match	Chesterfield, United StatesHQ recorded Nov 5, 2026	10001+	40,946 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Serede	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 5, 2026	10001+	8,708 contacts →
	Exact match “A Serede é uma empresa prestadora de serviços de implantação e manutenção em redes de Telecom, fundada em 06 de agosto de 2007.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Icomon Tecnologia Ltda	Exact match	São Paulo, BrazilHQ recorded Nov 5, 2026	10001+	5,504 contacts →
	Exact match “A Icomon atua há 37 anos com alta performance em tecnologia e telecomunicações.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	TMA Solutions	Exact match	Ho Chi Minh City, VietnamHQ recorded Nov 5, 2026	1,001-5,000	3,261 contacts →
	Exact match “TMA is a leading software company in Vietnam with engineers and 28 years of experience in providing quality software services for clients in 30 countries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Contour Software	Exact match	Karachi, PakistanHQ recorded Nov 5, 2026	1,001-5,000	2,193 contacts →
	Exact match “Contour Software is a wholly owned subsidiary of Constellation Software CSI acquires, manages, and builds market-leading vertical market software (“VMS”) businesses that develop…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Camusat	Exact match	Paris, FranceHQ recorded Nov 5, 2026	1,001-5,000	1,852 contacts →
	Exact match “Camusat is one of the market leaders in the implementation of telecom infrastructures and one of the most experienced network developers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Hansen Technologies	Exact match	Melbourne, PA, GermanyHQ recorded Nov 5, 2026	1,001-5,000	1,562 contacts →
	Exact match “Hansen Technologies (ASX:HSN) is a global software and services provider to the energy, water/utilities and telecommunications industries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Tecnotree Corporation	Exact match	Espoo, FinlandHQ recorded Nov 5, 2026	501-1,000	1,291 contacts →
	Exact match “Headquartered in Finland, Tecnotree Corporation was founded in 1978 and is the leading provider of full-stack Digital BSS for CSPs and DSPs.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Huawei Technologies India	Exact match	Bangalore, IndiaHQ recorded Nov 5, 2026	1,001-5,000	1,223 contacts →
	Exact match “Huawei Technologies India is the largest overseas software development center of Huawei, a leading global information and communications technology (ICT) solutions provider.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Circles	Exact match	SingaporeHQ recorded Nov 5, 2026	501-1,000	1,194 contacts →
	Exact match “Founded in 2014, Circles is a global technology company reimagining the telco industry with its innovative SaaS platform, empowering telco operators worldwide to effortlessly…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Wds-Sicap	Exact match	Baar, SwitzerlandHQ recorded Nov 5, 2026	n/a	870 contacts →
	Exact match “We are leading provider of telecom business intelligence and device management solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Nunsys	Exact match	Paterna, SpainHQ recorded Nov 5, 2026	1,001-5,000	810 contacts →
	Exact match “NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Nexwave Technologies	Exact match	SingaporeHQ recorded Nov 5, 2026	201-500	796 contacts →
	Exact match “Nexwave Technologies is a regional provider of telecommunication network engineering services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	PT Industri Telekomunikasi Indonesia Persero	Exact match	Bandung, IndonesiaHQ recorded Nov 5, 2026	501-1,000	755 contacts →
	Exact match “Located in Bandung, West Java with 695 employees (on March 2009), PT INTI (Indonesian Telecommunication Industry) has involved in telecommunication business for 35 years.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Qvantel	Exact match	Helsinki, FinlandHQ recorded Nov 5, 2026	501-1,000	730 contacts →
	Exact match “Qvantel, established in 1995, is a leading provider of digital BSS and monetization software to the telecommunications and digital services industries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Enea AB	Exact match	Stockholm, SwedenHQ recorded Nov 5, 2026	501-1,000	676 contacts →
	Exact match “Enea is a global specialist in advanced telecom and cybersecurity software, with a vision to make the world’s communications safer and more efficient.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Nexign	Exact match	St Petersburg, RussiaHQ recorded Nov 5, 2026	1,001-5,000	608 contacts →
	Exact match “Nexign is an international BSS provider with 30+ years of experience operating across 14 countries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	DUA Empat Tujuh, PT Solusi247	Exact match	Jakarta Selatan, IndonesiaHQ recorded Nov 5, 2026	201-500	536 contacts →
	Exact match “Dua Empat Tujuh, PT, or also known as Solusi247, is an integrated solution for Information Technology.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	FTS	Exact match	Or Yehuda, IsraelHQ recorded Nov 5, 2026	51-200	527 contacts →
	Exact match “FTS works with telecommunications, content and payment service providers globally to help them manage complex transactions and relationships with greater flexibility and greater…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Advanced Communications & Electronics Systems Company	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 5, 2026	1,001-5,000	526 contacts →
	Exact match “Advanced Communications & Electronic Systems Company is a multi-faceted enterprise with a particular focus on developing and distributing total solutions in the area of…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	NR Switch -N- Radio Services Pvt. LTD	Exact match	Kota, IndiaHQ recorded Nov 5, 2026	501-1,000	459 contacts →
	Exact match “As an established player in telecom services industry and a long standing partner to a wide range of operators and vendors, NR fully understands the complete process of Planning…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Behpardaz Hamrah Samaneh Aval Behsa	Exact match	Tehran, IranHQ recorded Nov 5, 2026	501-1,000	454 contacts →
	Exact match “BEHSA (Behpardaz Hamrah Samaneh Aval) Corp.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Excelacom Technologies	Exact match	Chennai, IndiaHQ recorded Nov 5, 2026	201-500	441 contacts →
	Exact match “ExcelaCom Technologies is an independent software vendor, offering BSS/OSS solutions and services to Tier 1 to Tier 3 NGN communications players across multiple geographies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	I2i Systems	Exact match	Esenler, TürkiyeHQ recorded Nov 5, 2026	201-500	428 contacts →
	Exact match “i2i Systems is an international information technology company that specializes in developing innovative ideas and solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Gentel Telekomünikasyon A.Ş	Exact match	Umraniye, TürkiyeHQ recorded Nov 5, 2026	51-200	388 contacts →
	Exact match “Gentel Telecommunication was founded in 2006, for developing work areas and work opinions in telecommunication industry with its strong background and experience over 30 years.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “telecom software developers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 3,074 telecom software developers worldwide

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Telecom software developers worldwide at a glance

As of Nov 5, 2026

21.3%Verified-email coverage

47.2Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Sao Paulo

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

997

11-50

1,233

51-200

530

201-500

167

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for telecom software developers are linked below.
What qualifies: Company records worldwide whose business descriptions match “telecom software developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 30,939 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Telecom software developers by location

29 lists · largest first

Every Telecom software developers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “telecom software developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom software developers are there worldwide?

RevenueBase identified 3,074 company matches for telecom software developers worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Amdocs tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most telecom software developers?

The United States leads with 260 companies, followed by India (251) and Brazil (178). Every telecom software developers list by country and city is linked on this page.

Which city has the most telecom software developers?

Sao Paulo leads with 44 company records, followed by London (37) and Bangalore (31).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 30,939 professional contacts with verified work emails tracked across these 3,074 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.