Fundraising Fox

RangeForce

AcquiredTechstars '15

White Plains, US · Delaware corporation · 8 known investors

RangeForce runs a cloud-based cyber range for solo and team cybersecurity exercising; acquired by Cyberbit in September 2025.

Also known as RangeForce Inc. · RangeForce, a Cyberbit company

Founders & leadership

TM
Taavi MustCo-founder
ME
Margus ErnitsCo-founder
GW
Gibb WithamNamed on SEC filing
JO
Jeffrey OrloffNamed on SEC filing
GL
Gordon LawsonNamed on SEC filing
JK
Jaanus KinkNamed on SEC filing
SH
Samuel HahnNamed on SEC filing
OF
Oliver FriedrichsNamed on SEC filing
WM
William MunroeNamed on SEC filing

Board

NM
Nazo MoosainBoard Member2020–2024Managing Partner at Energy Impact Partners

Investors · 8

Also in the syndicate · 1

Lapa Capital Partners

Reported raises · per SEC filings

Form D private placements

$30.5M disclosed across 2 of 5 rounds · 2019–2022

$18.5MraisedDec 2022 · 6 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Taavi MustExecutive Officer, Director
  • Oliver FriedrichsDirector
  • Rachel BeckExecutive Officer
  • Gibb WithamDirector
  • Jaanus KinkExecutive Officer
  • Nazo MoosaDirector
  • Kimberly SpeiserExecutive Officer
  • Jeffrey OrloffExecutive Officer
  • Rupert CollierExecutive Officer
Offering amount
$21M
Amount sold
$18.5M
First sale
Nov 2022
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$12MraisedJul 2020 · 5 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Gibb WithamDirector
  • Jeffrey OrloffExecutive Officer
  • Gordon LawsonExecutive Officer, Director
  • Jaanus KinkExecutive Officer
  • Samuel HahnExecutive Officer
  • Oliver FriedrichsDirector
  • Nazo MoosaDirector
  • William MunroeExecutive Officer
  • Taavi MustExecutive Officer, Director
  • Margus ErnitsExecutive Officer
Offering amount
$15M
Amount sold
$12M
First sale
Jul 2020
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

RangeForce operates a cloud-based cyber range and cybersecurity skills platform on which security, IT, DevOps, web application engineering and industrial control teams practice defensive work against simulated attacks. The platform combines individual technical content — theory labs, hands-on labs, a solo range covering full incidents, and gamified capstone challenges — with team drills such as alert triage using XDR and SIEM tools, infrastructure-defense scenarios for IT and DevOps teams, red-versus-blue live attack exercises, and full-breach scenarios for blue teams of up to ten people.

Around this content the company layers prescriptive, individualized learning paths, readiness pathways that generate skills plans for specific roles, team sizes, risks and threats, performance data capture across technical and soft skills, and readiness mapping to development plans and frameworks including MITRE and NIST. In 2023 it introduced a comprehensive readiness program and a proprietary Defense Readiness Index (DRI). More recent additions include a generative-AI Content Studio that lets team leaders build custom skill environments mapped to their risks, and an AI Tutor that guides learners through difficult material. RangeForce also built vendor-specific training modules for tools such as Recorded Future, Splunk, VirusTotal and Carbon Black, as part of a full-stack security partner ecosystem, and supports orchestration of incident detection and response across multiple vendor tools.

Founding story

The founders built the first NATO cyber range in 2015, delivering the inaugural Locked Shields exercise — described by NATO as the most complex live-fire cyber resilience exercise in the world. Seeing the value of realistic exercising first-hand, they founded RangeForce to bring team-based training to a wider market, launching the first series of RangeForce cyber ranges in 2016. Co-founders are Taavi Must (later Chief Product Officer), Margus Ernits and Jaanus Kink.

Business model

RangeForce sells access to its cloud-based cyber range and skills platform to organizations, positioning it as an affordable, on-demand alternative to complex and expensive on-premise range infrastructure. Offerings span solo labs and pathways for individual upskilling and cross-training, team exercising drills, custom reporting to management, and readiness mapping for security leadership.

Traction

More than 100 organizations were using the platform as of July 2020, including large organizations in financial services, technology, government, retail, telecom and healthcare.

Latest developments

On 23 September 2025, Cyberbit announced its acquisition of RangeForce, creating a US-headquartered combined company offering AI-powered operational cyber readiness to commercial, enterprise and government customers. BTIG, LLC served as exclusive financial advisor and King & Spalding LLP as legal advisor to RangeForce; Charlesbank Capital Partners is Cyberbit's financial sponsor. Integration of the two platforms was still underway as of the company's published materials, with both organizations stating they would maintain existing service continuity.

Full profile — market position, technology, go-to-market, geography, history

Market position

RangeForce was named a Strong Performer in the Forrester Wave for Cybersecurity Skills & Training Platforms, while acquirer Cyberbit was named a Leader in the same evaluation. The company describes itself as a pioneer in cloud-based cyber ranges and traces its origins to the platform used for NATO's Locked Shields live-fire exercise.

RangeForce emphasizes team-based exercising in full, live simulated environments rather than individual-only technical training, integrated with solo labs, skills pathways and readiness mapping, and its Defense Readiness Index links team readiness to organizational risk for reporting at a strategic level.

Technology

The platform simulates compromised enterprise environments at scale — rotating IP addresses, live application traffic and lateral movement — using automation and cloud computing to make realistic exercising available without dedicated range infrastructure. It incorporates generative AI in the Content Studio for custom environment creation and an AI-powered adaptive tutor for personalized learning, captures technical and soft-skill performance data, and maps outcomes to frameworks such as MITRE ATT&CK, D3FEND and NIST. Combined with Cyberbit, the platforms give practitioners hands-on access to more than 25 enterprise-grade security technologies spanning EDR, SIEM, DFIR and firewall products.

Go-to-market

The company sells to enterprises and government buyers directly, with demo requests through its website, and works with channel and ecosystem partners; Carahsoft Technology Corp. is described as a partner to both RangeForce and Cyberbit, providing public-sector contract vehicles. RangeForce also built an ecosystem of training orchestration and security-vendor partners, and stated after its 2020 Series A that it would use proceeds to accelerate go-to-market, advance product development, expand that partner ecosystem and pursue global growth.

Enterprises and government organizations with security operations and incident response teams, spanning established SOCs and developing teams operating in-house, outsourced or hybrid, plus DevOps, web application engineering and industrial control teams. By 2020 more than 100 organizations used the platform, across financial services, technology, government, retail, telecom and healthcare.

Geography

Founded in Tallinn, Estonia, with a workforce distributed worldwide. Company materials list headquarters in Wilmington, Delaware; press coverage has variously described the company as Manassas, Virginia-based (2020) and Virginia-based (2025). The combined company with Cyberbit maintains teams and data centers across the US and EU.

History

After delivering the first Locked Shields exercise in 2015 and launching its first cyber ranges in 2016, RangeForce raised a $1.5M seed round in 2019 led by Paladin Capital Group with Trind Ventures, and launched the official RangeForce platform that year. A $16M Series A followed in July 2020, led by Energy Impact Partners and Paladin Capital Group with Trind Ventures and Cisco Investments. A $20M Series B came in 2022, led by Energy Impact Partners and Paladin Capital Group with Cisco Investments, KPN Ventures, Lapa Capital Partners and Lanx Capital. In 2023 the company launched its readiness program and the Defense Readiness Index. In September 2025, RangeForce was acquired by Boston-based Cyberbit.

Compiled by commissioned research from 7 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Enterprise-grade security technologies available hands-on (combined with CyberbiSep 202525 technologies
Organizations using the platformJul 2020100 organizations

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Timeline · 8

launches, deals, and filings
Sep 2025
Cyberbit acquires RangeForce

Boston-based attack simulation company Cyberbit acquired RangeForce, combining two cyber range platforms into a US-headquartered company with teams and data centers in the US and EU. BTIG, LLC was exclusive financial advisor and King & Spalding LLP legal advisor to RangeForce.

source ↗

Jan 2025
Named a Strong Performer in the Forrester Wave for Cybersecurity Skills & Training Platforms

RangeForce was recognized as a Strong Performer in the Forrester Wave: Cybersecurity Skills & Training Platforms; Cyberbit was named a Leader.

source ↗

Jan 2023
Readiness program and Defense Readiness Index (DRI) launched

RangeForce launched its first comprehensive readiness program and the proprietary Defense Readiness Index.

source ↗

Jan 2022
$20M Series B

Series B of $20M led by Energy Impact Partners and Paladin Capital Group, with participation from Cisco Investments, KPN Ventures, Lapa Capital Partners and Lanx Capital.

$20M source ↗

Jul 2020
$16M Series A

RangeForce raised $16M in Series A funding led by Energy Impact Partners with participation from Paladin Capital Group, Trind and Cisco Investments, to accelerate go-to-market, product development, partner ecosystem expansion and global growth.

$16M source ↗

Jan 2019
Seed round of $1.5M led by Paladin Capital Group

RangeForce raised a $1.5M seed round led by Paladin Capital Group with Trind Ventures, the same year it launched the official RangeForce platform.

$1.5M source ↗

Jan 2019
Launch of the official RangeForce platform

Platform launched with a catalog of team exercises and skills labs.

source ↗

Jan 2016
First series of RangeForce cyber ranges launched

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Legal entities · 1

corporate structure
RangeForceDelaware

In the news

Research sources · 7

primary sources listed

7 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does RangeForce do?
RangeForce runs a cloud-based cyber range for solo and team cybersecurity exercising; acquired by Cyberbit in September 2025.
Who founded RangeForce?
RangeForce was founded by Taavi Must, Margus Ernits.
Who are RangeForce's investors?
RangeForce's investors include Cisco Investments, Paladin Capital Group, Techstars, Trind Ventures, Energy Impact Partners, KPN Ventures, Lanx Capital.
How much funding has RangeForce raised?
RangeForce has disclosed $30.5M raised across 2 of its 5 known rounds.
Where is RangeForce headquartered?
RangeForce is headquartered in White Plains, US.