Company lists · Data refreshed September 2026
Top 25 Telecom service delivery software vendors worldwide
RevenueBase identified 2,176 telecom service delivery software vendors worldwide as of September 2026 and tracks 114,777 professional contacts across them, including 28,312 with verified work emails. India is the largest market and London the largest hub.
This list covers telecom service delivery software vendors worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for telecom service delivery software vendors follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest telecom service delivery software vendors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 39,863 contacts → | ||||
Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 8,651 contacts → | ||||
Indirect evidence “Netcracker Technology, a wholly owned subsidiary of NEC Corporation, helps service providers around the world transform and grow in the digital economy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,895 contacts → | ||||
Partial evidence “A Icomon atua há 37 anos com alta performance em tecnologia e telecomunicações.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,226 contacts → | ||||
Indirect evidence “Headquartered in Finland, Tecnotree Corporation was founded in 1978 and is the leading provider of full-stack Digital BSS for CSPs and DSPs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,187 contacts → | ||||
Partial evidence “Huawei Technologies India is the largest overseas software development center of Huawei, a leading global information and communications technology (ICT) solutions provider.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,003 contacts → | ||||
Indirect evidence “Founded in 2014, Circles is a global technology company reimagining the telco industry with its innovative SaaS platform, empowering telco operators worldwide to effortlessly…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 777 contacts → | ||||
Partial evidence “We are leading provider of telecom business intelligence and device management solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 701 contacts → | ||||
Partial evidence “OFG is an international company with more than 20 years of experience in the telecommunications sector.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 651 contacts → | ||||
Strong evidence “Qvantel, established in 1995, is a leading provider of digital BSS and monetization software to the telecommunications and digital services industries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 567 contacts → | ||||
Indirect evidence “Nexign is an international BSS provider with 30+ years of experience operating across 14 countries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 536 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 513 contacts → | ||||
Indirect evidence “Advanced Communications & Electronic Systems Company is a multi-faceted enterprise with a particular focus on developing and distributing total solutions in the area of…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 494 contacts → | ||||
Partial evidence “FTS works with telecommunications, content and payment service providers globally to help them manage complex transactions and relationships with greater flexibility and greater…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 480 contacts → | ||||
Indirect evidence “Dua Empat Tujuh, PT, or also known as Solusi247, is an integrated solution for Information Technology.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 447 contacts → | ||||
Partial evidence “LotusFlare’s mission is to design, build, and continuously advance a digital commerce and monetization platform that simplifies technology and customer experience to deliver…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 423 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 423 contacts → | ||||
Indirect evidence “BEHSA (Behpardaz Hamrah Samaneh Aval) Corp.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 402 contacts → | ||||
Indirect evidence “i2i Systems is an international information technology company that specializes in developing innovative ideas and solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 364 contacts → | ||||
Strong evidence “Cerillion is a leading provider of BSS/OSS software for the telecommunications industry, with over 25 years’ experience supporting mobile, fixed, cable and multi-service operators…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 361 contacts → | ||||
Partial evidence “ESKADENIA Software is committed to continuously enrich its product offerings and create advanced software products according to market demands.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 361 contacts → | ||||
Partial evidence “For 25 years, XIUS has been at the forefront of telecom innovation designing intelligent, secure, and future-ready network infrastructure for operators and enterprises across five…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 358 contacts → | ||||
Partial evidence “Your preferred partner for custom software development and technology outsourcing.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 347 contacts → | ||||
Partial evidence “Netxcell Limited is a pioneer in the telecom sector, with a collective vision: To cater to the global emerging and demanding trends in wireless technology.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 328 contacts → | ||||
Strong evidence “Optiva, a Qvantel company, is a leading provider of digital BSS and monetization software to the telecommunications and digital services industries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 328 contacts → | ||||
Partial evidence “Seavus®, part of Aricoma Group, is a software development and consulting company with a proven track record in providing successful enterprise-wide business solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: telecom service delivery software vendors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names telecom service delivery software vendors.
- Partial evidence
- Its own public description names part of telecom service delivery software vendors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name telecom service delivery software vendors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 2,176 telecom service delivery software vendors worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 28,312 reachable decision-makers.
Free signup · no credit card
Telecom service delivery software vendors worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among telecom service delivery software vendors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for telecom service delivery software vendors are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “telecom service delivery software vendors”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names telecom service delivery software vendors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among telecom service delivery software vendors, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 28,312 across the full list. 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 September 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Telecom service delivery software vendors by location
15 lists · largest firstEvery Telecom service delivery software vendors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Telecom service delivery software vendors based in India250
- Telecom service delivery software vendors based in the United States211
- Telecom service delivery software vendors based in Brazil113
- Telecom service delivery software vendors based in the United Kingdom91
- Telecom service delivery software vendors based in Germany63
- Telecom service delivery software vendors based in Türkiye56
- Telecom service delivery software vendors based in Spain50
- Telecom service delivery software vendors based in Canada43
- Telecom service delivery software vendors based in France40
- Telecom service delivery software vendors based in South Africa36
- Telecom service delivery software vendors based in Poland32
- Telecom service delivery software vendors based in Australia31
- Telecom service delivery software vendors based in Italy29
- Telecom service delivery software vendors based in the United Arab Emirates26
Cities
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names telecom service delivery software vendors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many telecom service delivery software vendors are there worldwide?
RevenueBase identified 2,176 telecom service delivery software vendors worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Amdocs, headquartered in Chesterfield, tops this list with the largest team on record.
Which country has the most telecom service delivery software vendors?
India leads with 250 companies, followed by the United States (211) and Brazil (113). Every telecom service delivery software vendors list by country and city is linked on this page.
Which city has the most telecom service delivery software vendors?
London leads with 34 headquartered companies, followed by Istanbul (28) and Hyderabad (24).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 28,312 verified decision-maker contacts tracked across these 2,176 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,176 telecom service delivery software vendors worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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 Smart Search, 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.