What Does IronNet Do?

Total employees61
HeadquartersMcLean
Founded2014

IronNet is a cybersecurity company that pioneered the Collective Defense platform, enabling organizations to detect and defend against advanced cyber threats in real-time. By sharing anonymized threat intelligence across sectors, IronNet enhances visibility and response capabilities, leveraging AI-driven behavioral analytics for Network Detection and Response (NDR). Founded by General (Ret.) Keith Alexander, former Director of the NSA, the company focuses on protecting critical infrastructures and enterprises. In December 2023, IronNet was acquired by C5 Capital, a specialist venture capital firm, aiming to bolster its market position and continue its mission.

Where Is IronNet's Headquarters?

HQ Function

Serves as a key operational center, historically housing executive leadership, corporate strategy, R&D in cybersecurity technologies, engineering, and coordination of sales and marketing efforts.

Notable Features:

The office is located within a modern Class A office building in Tysons One Place, offering contemporary amenities and infrastructure. Specific unique architectural features of IronNet's leased space are not publicly highlighted; the focus is on a functional, secure, and collaborative workspace.

Work Culture:

The Tysons HQ fostered a mission-driven culture, emphasizing innovation in cybersecurity and collective defense. It brought together professionals with backgrounds in national security, military intelligence, and enterprise technology, creating a fast-paced and results-oriented environment dedicated to solving complex cyber challenges.

HQ Significance:

Its Tysons location is highly significant due to its proximity to Washington D.C., U.S. federal government agencies (including defense and intelligence communities), and a rich ecosystem of cybersecurity talent and partner companies. This facilitated engagement with key public and private sector clients.

Values Reflected in HQ: The choice of a professional, secure office in a prominent technology and government-focused hub reflected IronNet's commitment to addressing critical security challenges, fostering innovation, and maintaining a strong presence within the national security and enterprise technology communities.

Location:

IronNet, now part of C5 Capital, maintains a global presence focused on delivering its Collective Defense and Network Detection and Response solutions worldwide. Operations are primarily supported from its North American and European hubs, with strategic interests in the Asia-Pacific region. Globally supported functions include sales and business development, customer success and support, threat intelligence operations via its IronDome platform, and ongoing security research. The acquisition by C5 Capital is intended to enhance IronNet's international reach and service capabilities for critical infrastructure and enterprises globally.

Street Address:

7900 Tysons One Place, Suite 450

City:

McLean

State/Province:

Virginia

Country:

USA

Where Else Does IronNet Operate Around the World?

London, United Kingdom

Address: Central London, potentially co-located or aligned with C5 Capital's UK operations (48 Pall Mall, St. James's, London SW1Y 5JG, UK is C5's address).

To expand IronNet's Collective Defense footprint across EMEA, address region-specific cyber threats and regulatory environments, and support multinational clients, leveraging C5 Capital's strong European presence.

Singapore, Singapore

Address: Previously located in Singapore's central business district; current specific address and operational scale post-acquisition by C5 Capital are unconfirmed, though APAC remains a strategic region.

To establish and grow IronNet's presence in the Asia-Pacific region, catering to the unique cybersecurity challenges and opportunities in diverse markets. Future operations will be guided by C5 Capital's strategic direction for the region.

Buying Intent Signals for IronNet

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Who's Leading IronNet? Meet the Executive Team

As of April 2025, IronNet' leadership includes:

Linda Zecher - Chief Executive Officer
General (Ret.) Keith B. Alexander - Founder and Chairman
Don Closser - Chief Product Officer
Chris Murphy - Chief Revenue Officer
Russell Cobb - General Counsel

Who's Investing in IronNet?

IronNet has been backed by several prominent investors over the years, including:

C5 Capital (Current primary owner)
ForgePoint Capital (Previous major investor)
Kleiner Perkins (Previous investor)
Signal Peak Ventures (Previous investor)
Trident Capital Cybersecurity (Previous investor)

What Leadership Changes Has IronNet Seen Recently?

Hire1
Exits1

The past 12 months have been transformative for IronNet's executive team, primarily due to its Chapter 11 bankruptcy filing in October 2023 and subsequent acquisition by C5 Capital in December 2023. This led to significant leadership changes, notably the appointment of Linda Zecher as CEO in January 2024, and departures of previous top executives.

Departures

William 'Bill' Welch, Bill Welch departed from his role as Co-CEO of IronNet amidst company restructuring.

New Appointments:

Cameron Pforr, Cameron Pforr transitioned from Chief Financial Officer to Interim Chief Executive Officer.
Linda Zecher, Linda Zecher was appointed as the new Chief Executive Officer of IronNet to lead its next phase under C5 Capital ownership.

What Technology (Tech Stack) Is Used byIronNet?

Discover the tools IronNet uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

IronNet Email Formats and Examples

IronNet likely utilizes standard corporate email formats for its employees. The most common patterns are typically [first_initial][last]@[companyname].com or [first].[last]@[companyname].com. For a company focused on cybersecurity, they may employ strict email policies and potentially use varied formats for different departments or security reasons.

[first_initial][last]@ironnet.com (e.g., jdoe@ironnet.com) or [first].[last]@ironnet.com (e.g., jane.doe@ironnet.com)

Format

jdoe@ironnet.com

Example

80%

Success rate

What's the Latest News About IronNet?

IronNet Website / PR NewswireJanuary 8, 2024

C5 Capital Completes Acquisition of IronNet, Appoints Linda Zecher as CEO

C5 Capital announced the completion of its acquisition of IronNet and the appointment of Linda Zecher as its new CEO. Zecher is tasked with leading IronNet's next phase of growth and innovation in the Collective Defense and Network Detection and Response markets....more

PR NewswireDecember 12, 2023

C5 Capital Finalizes Deal to Acquire Cybersecurity Firm IronNet

C5 Capital, a specialist venture capital firm focused on cybersecurity, space, and energy transition, successfully completed its acquisition of IronNet. This move aims to stabilize IronNet and leverage its technology under new leadership....more

Bloomberg LawOctober 27, 2023

Cybersecurity Firm IronNet Files for Chapter 11 Bankruptcy

IronNet Inc., founded by former NSA Director Gen. Keith Alexander, filed for Chapter 11 bankruptcy protection in the District of Delaware. The filing was intended to facilitate a sale of the company amid ongoing financial difficulties and delisting from the NYSE....more

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