Imperva
Unicorn exit · $3.6BAcquiredSan Mateo, US · Founded 2002 · 15 known investors
Acquired by Thales Group July 2023 · $3.6B · source ↗
Imperva provides cybersecurity solutions to protect customers from cyberattacks across applications, data, and identities during digital transformation. The company serves enterprise customers including major financial institutions, telecom providers, and Fortune 100 companies.
Also known as Imperva Impv
Founders & leadership
Imperva was founded in 2002 by Shlomo Kramer, Amichai Shulman, and Mickey Boodaei.




Investors · 15
Also in the syndicate · 2
Company profile
researched Aug 2026Imperva was founded in 2002 in Redwood Shores/San Mateo, California, by Shlomo Kramer, Amichai Shulman, and Mickey Boodaei, initially under the name WebCohort. Kramer, a co-founder of Check Point Software (the company credited with commercializing the firewall), and Shulman and Boodaei set out to address a gap in perimeter-focused security: protecting the data and applications that attackers reach once they get past the network edge. The company shipped its first product, SecureSphere, in 2003 to monitor and protect web applications and databases, and rebranded from WebCohort to Imperva in 2004. Greylock Partners, via partner Asheem Chandna, was an early institutional backer and Chandna joined the board around April 2003, remaining a director for roughly a decade — making Greylock one of Imperva's longest-tenured venture investors alongside Accel Partners, Meritech Capital Partners, U.S. Venture Partners, and Venrock.
Imperva went public on the New York Stock Exchange under the ticker IMPV on November 9, 2011, pricing its IPO at $18 per share and raising approximately $90 million; shares reportedly jumped roughly 33% on their opening day. As a public company, Imperva broadened from its on-premises SecureSphere data/app security roots into cloud-delivered application security, acquiring Incapsula (a cloud WAF/CDN/DDoS provider), Skyfence, and Tomium Software assets in 2014, buying data-masking vendor Camouflage in February 2017 (and around the same time divesting Skyfence to Forcepoint for about $40 million), acquiring RASP vendor Prevoty in August 2018, bot-management company Distil Networks in 2019, and database-security company jSonar in October 2020. Leadership changed several times during the public-company years: Anthony Bettencourt became CEO in August 2014, Chris Hylen succeeded him as President and CEO in August 2017, Hylen departed in October 2019 (Charles Goodman served as interim CEO), and Pam Murphy — previously COO of Infor — was named CEO in January 2020.
In October 2018, private equity firm Thoma Bravo agreed to take Imperva private for $55.75 per share in cash, a deal valued at approximately $2.1 billion (about a 30% premium to the prior closing price); the transaction closed in early 2019, ending Imperva's decade as a public company. Under Thoma Bravo's ownership, Imperva continued to invest in cloud security, API security, and data security posture management, competing with cloud-security and CDN players such as Cloudflare, Akamai, Fastly, F5, and Radware in application security, and with data-security specialists such as Varonis in the data-protection segment.
Business model
B2B enterprise software/SaaS security vendor; sells application security (WAF, bot management, API security, DDoS, CDN) and data security (DAM, DSPM, data masking/discovery) products via direct sales, channel partners, and cloud subscriptions.
Subscription/license and support/maintenance revenue from enterprise and cloud security products; historically also SaaS-delivered application security (Incapsula/Cloud WAF) subscriptions.
▸Full profile — profile (continued), go-to-market, ownership
Profile (continued)
In July 2023, French defense and technology conglomerate Thales Group announced an agreement to acquire Imperva from Thoma Bravo for $3.6 billion, aiming to combine Imperva's application and data security portfolio with Thales's identity, encryption, and cloud-protection businesses (which already included the CipherTrust/data-protection assets from its earlier acquisition of Gemalto). The acquisition closed on December 4, 2023, and Imperva was folded into Thales's Cyber Security Products business line, led by Sébastien Cano, alongside other Thales cybersecurity brands. As of 2025-2026, Imperva continues to operate under its own brand within Thales, marketing its WAF/WAAP, bot management, API security, DDoS/CDN, and Data Security Fabric products to enterprise customers, and has continued to be recognized in third-party analyst evaluations (e.g., KuppingerCole Leadership Compass and SecureIQLab Cloud WAAP evaluations). Following the Thales acquisition, Imperva has no standalone CEO; it operates as Thales's Cyber Security Products business line, led by Sébastien Cano (SVP, Cyber Security Products, Thales). The last independent CEO was Pam Murphy (Jan 2020 through the Thoma Bravo era).
Go-to-market
Mid-market to large enterprises and government agencies across financial services, healthcare, retail, technology, and telecom that need to protect web applications, APIs, and sensitive databases; company states it serves 6,200+ enterprises globally.
Ownership
subsidiary — parent: Thales Group
Compiled by commissioned research from 12 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 10
by search overlapCompanies competing with Imperva for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 25
launches, deals, and filingsImperva becomes part of Thales's Cyber Security Products business line.
Thales Group agrees to buy Imperva from Thoma Bravo.
Imperva becomes a privately held, Thoma Bravo-owned company.
Take-private deal announced at $55.75/share, ~30% premium.
Bought data-masking vendor Camouflage; sold Skyfence to Forcepoint for ~$40M.
Expansion into cloud WAF/CDN and cloud access security.
Greylock becomes an early investor; partner Asheem Chandna serves as board director from ~April 2003 to June 2013.
Shlomo Kramer, Amichai Shulman, and Mickey Boodaei found WebCohort in Redwood Shores/San Mateo, CA.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 12
primary sources listed
- Imperva DEFA14A - Thoma Bravo MergerSEC EDGAR · official site
- Imperva 424B1 IPO ProspectusSEC EDGAR · official site
- Imperva Inc SEC EDGAR filing index (CIK 0001364962)SEC EDGAR · official site
- Imperva homepageImperva (official site) · official site
- Imperva LeadershipImperva (official site) · official site
12 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Imperva do?
- Protect what matters most — your data and applications
- Who founded Imperva?
- Imperva was founded by Shlomo Kramer, Amichai Shulman, Mickey Boodaei in 2002.
- Who are Imperva's investors?
- Imperva's investors include Accel, Aspect Ventures, Core Ventures Group, Digi Ventures, ForgePoint Capital, SAV (Scale Asia Ventures), Thoma Bravo, U.S. Venture Partners and 5 more.
- Where is Imperva headquartered?
- Imperva is headquartered in San Mateo, US.




