Where is ADTRAN located?

ADTRAN is headquartered in Huntsville, United States. It is registered at Huntsville, Alabama.

How many employees does ADTRAN have?

As of Mar 31, 2026, the latest employee count at ADTRAN is 2379.

Is ADTRAN a funded company?

ADTRAN is a funded company, having raised a total of $***** in its 1st and only funding round.

What is the annual revenue of ADTRAN?

Annual revenue of ADTRAN is $1.08B as on Dec 31, 2025.

Where does ADTRAN rank among its competitors?

ADTRAN ranks 51st amongst 786 active competitors, of which 63 are funded. It stands 11th in terms of total funding among its competitors. The most recent competitor to raise funding was Actelis, which secured $850K in Sep, 2025.

Who are the top competitors of ADTRAN?

ADTRAN's top competitors include Mavenir, Ciena and Actelis. Among them, Actelis secured the most recent funding round in September, 2025.

ADTRAN - 2026 Company Profile, Team, Funding, Competitors & Financials

ADTRAN is a public company based in Huntsville (United States), founded in 1985. It operates as a Cloud based network monitoring solutions. The company has 786 active competitors, including 63 funded and 206 that have exited. Its top competitors include companies like Mavenir, Ciena and Actelis.

Company Details

Cloud based network monitoring solutions. It provides open optical networking systems, access and aggregation products, and subscriber solutions. It include optical line systems, terminals, pluggable optics, aggregation switches, and optical line terminals. The company also provides automation and insights, network infrastructure assurance, and global services. The services encompass consulting, deployment, cloud, software, and support.

Website: www.adtran.com/en
Social
Registered Address: Huntsville, Alabama

Key Metrics

Founded Year

1985

Location

Huntsville, United States

Stage

Public

Investors

Herald Investment Management & 1 more

Ranked

51^st among 786 active competitors

Annual Revenue

$1.08B as on Dec 31, 2025

Employee Count

2,379 as on Mar 31, 2026

Investment & Acquisitions

CCS (Cambridge Communication Systems) & 3 more

Similar Companies

Ciena & 458 more

Exit Details

Public

View ADTRAN's full profile

ADTRAN is associated with 4 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
ADTRAN HOLDINGS, INC. CIN: 926282 , United States, Active	Aug 09, 2021	$1.08B (As on Dec 31, 2025)	3307 (As on Dec 31, 2022)	-
ADTRAN NETWORKS INDIA PRIVATE LIMITED CIN: U74120TG2012FTC080372 , India, Active	Apr 17, 2012	$138K (As on Mar 31, 2025)	1 (As on Aug 31, 2023)
ADTRAN, INC CIN: 630918200 , United States, Active	Dec 26, 999	-	847 (As on Dec 31, 2024)	-
Adtran, Inc. CIN: 175843094 , United States, Active	Dec 22, 2020	-	-	-

ADTRAN got listed on Aug 09, 1994.

Click here to take a look at ADTRAN's IPO in detail

ADTRAN is a funded company. ADTRAN has 2 institutional investors.

View details of ADTRAN's funding rounds and investors

ADTRAN's employee count trend

ADTRAN has 2,379 employees as of Mar 26. Here is ADTRAN's employee count trend over the years:

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Top competitors of ADTRAN include Mavenir, Ciena and Actelis. Here is the list of Top 10 competitors of ADTRAN, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Mavenir 2005, Richardson (United States), Acquired	Provider of a multi-access edge networking computing platform	$105M	North Bridge Venture Partners, Alloy Ventures ... & 11 others	82/100
2nd	Ciena 1992, Hanover (United States), Public	Provider of networking systems, automation software, components, and related services	-	Western Technology Investment, Worldview Technology Partners ... & 12 others	76/100
3rd	Actelis 1998, Fremont (United States), Public	Provider of networking solutions for intelligent traffic, rail, and city systems	$162M	Adams Street Partners, Saints Capital & 15 others	76/100
4th	Ericsson 1876, Stockholm (Sweden), Public	Provider of telecom equipment and software solutions	-	Kepha Partners, Investor & 8 others	76/100
5th	ZTE 1985, Shenzhen (China), Public	Enterprise SD WAN network management solutions provider	-	RC Investments, Nanshan Strategic Emerging Industries Investment ... Read more	73/100
6th	Calix 1999, Petaluma (United States), Public	Provider of communication equipment	$108M	Redpoint Ventures, Meritech & 16 others	71/100
7th	Auvik 2011, Waterloo (Canada), Acquired	Cloud based network monitoring and management solutions	$33.4M	OpenView, Rho Canada Partners & 5 others	71/100
8th	Infinera 2000, Sunnyvale (United States), Acquired	Provider of networking, infrastructure, and communications solutions across various industries	$235M	Worldview Technology Partners, Icon Ventures ... & 18 others	71/100
9th	ARRIS 1991, Suwanee (United States), Acquired	Global leader in network infrastructure solutions for communication networks	-	Venrock, North Bridge Venture Partners & 4 others	70/100
10th	NEC 1899, Minato City (Japan), Acquired	Provider of cloud-based IT and networking solutions	-	NTT Group, CEPI & 1 others	69/100
51st	ADTRAN 1985, Huntsville (United States), Public	Cloud based network monitoring solutions	-	Herald Investment Management, EGORA Ventures	59/100

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ADTRAN has made 1 investments in companies including CCS (Cambridge Communication Systems). ADTRAN has also acquired 3 companies including SmartRG and Bluesocket.

Here is the list of investments & acquisitions:

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Date of Investment/Acquisition	Type	Company Name	Founded Year	Location
Feb 08, 2019	Investments	CCS (Cambridge Communication Systems)	2010	India
Dec 06, 2018	Acquisition	SmartRG	2012	Portland (United States)
Aug 09, 2011	Acquisition	Bluesocket	1999	Burlington (United States)