When was Sonus founded?

Sonus was founded in 1997 and raised its 1st funding round 2 years after it was founded.

Where is Sonus located?

Sonus is headquartered in Westford, United States. It is registered at 6500 CHASE OAKS BLVD # 100,PLANO,TX,75023.0,43.

How many employees does Sonus have?

As of May 31, 2026, the latest employee count at Sonus is 104.

Is Sonus a funded company?

Sonus is a funded company, having raised a total of $***** in its 1st and only funding round, a Series C round on Dec 15, 1999.

When was the latest funding round of Sonus?

Sonus' latest funding was a $***** Series C round on Dec 15, 1999, with participation from 9 investors.

Where does Sonus rank among its competitors?

Sonus ranks 446th amongst 3612 active competitors, of which 51 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was AT&T, which secured $42.3M in Feb, 2024.

Who are the top competitors of Sonus?

Sonus' top competitors include T-Mobile, MTN and Verizon. Among them, AT&T secured the most recent funding round in February, 2024.

Sonus - 2026 Company Profile, Team, Funding & Competitors

Sonus is a public company based in Westford (United States), founded in 1997. It operates as a Provider of innovative IP and optical networking and cloud-to-edge communications solutions. Sonus has raised $46M in funding. The company has 3612 active competitors, including 51 funded and 567 that have exited. Its top competitors include companies like T-Mobile, MTN and Verizon.

Company Details

Ribbon Communications offers innovative IP and optical networking solutions along with cloud-to-edge communications solutions. The company was formed in 2017 through the merger of Genband and Sonus Networks, and is headquartered in Plano, Texas. They provide optical and IP systems for seamless communication transitions.

Website: sonus.net
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Registered Address: 6500 CHASE OAKS BLVD # 100,PLANO,TX,75023.0,43

Key Metrics

Founded Year

1997

Location

Westford, United States

Stage

Public

Total Funding

$46M in 1 round

Latest Funding Round

Series C, Dec 15, 1999, $*****

Investors

Bessemer Venture Partners & 11 more

Ranked

446^th among 3612 active competitors

Employee Count

104 as on May 31, 2026

Investment & Acquisitions

Performance Technologies

Similar Companies

T-Mobile & 4081 more

Exit Details

Public

View Sonus' full profile

Sonus is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
RIBBON COMMUNICATIONS INC. CIN: 32065261052 , United States, Active	Oct 27, 2017	-	-	-

Sonus has raised a total funding of $46M over 1 round. Its latest funding round was a Series C round on Dec 15, 1999 for $*****. 9 investors participated in its latest round. Sonus has 12 institutional investors.

Here is the list of recent funding rounds of Sonus:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Dec 15, 1999	4278835	Series C	9080268	9421426	6219821	4722743

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View details of Sonus's funding rounds and investors

Sonus' employee count trend

Sonus has 104 employees as of May 26. Here is Sonus's employee count trend over the years:

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Top competitors of Sonus include T-Mobile, MTN and Verizon. Here is the list of Top 10 competitors of Sonus, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	T-Mobile 1994, Bellevue (United States), Acquired	Provider of mobile telecommunication services	-	Alcor Fund, Credit Agricole CIB & 16 others	84/100
2nd	MTN 1994, Fairland (South Africa), Public	Provider of mobile network services	$7.05M	Nigeria Sovereign Investment Authority, Cogebanque ... & 38 others	81/100
3rd	Verizon 1983, New York City (United States), Public	Provider of mobile and internet services for home & business	-	Gibson Wealth Advisors, Morton Brown Family Wealth ... & 16 others	81/100
4th	Optus 1981, North Ryde (Australia), Acquired	Provider of mobile internet services for home and offices	$19.7M	Australian Wildlife Conservancy, Temasek	80/100
5th	Telia Company 1853, Solna (Sweden), Acquired	Provider of integrated telecom and TV services	-	Norvestia, Europa	80/100
6th	Zain Group 1983, Kuwait City (Kuwait), Public	Telecom services provider	-	IFC, Arab Bank & 2 others	79/100
7th	AT&T 1876, Dallas (United States), Public	Provider of mobile internet, TV, and other services	-	J.L. Bainbridge & Company, Elliott Management ... & 12 others	78/100
8th	Proximus Group 1994, Brussels (Belgium), Public	Provider of telephony, internet, television and network-based ICT services	-	Expon Capital & 3 others	77/100
9th	SK Telecom 1984, Seoul (South Korea), Public	Provider of integrated telecommunication services	-	Deutsche Bank, Barclays & 4 others	77/100
10th	Deutsche Telekom 1995, Bonn (Germany), Public	Provider of telecommunication services	-	World Capital Holdings Group, Triodos Investment Management ... & 1 others	77/100
446th	Sonus 1997, Westford (United States), Public	Provider of innovative IP and optical networking and cloud-to-edge communications solutions	$46M	Bessemer Venture Partners, Mitsubishi Corporation ... & 10 others	44/100