Fundraising Fox

SlashNext

acquired by Varonis Systems

Pleasanton, US · Founded 2014 · 7 known investors

Find your way into SlashNext

28 people in our graph share verified history with the SlashNext team — schools, employers, funds. One of them is your warm intro.

Kevin Mandiaunlockedknows Atif Mushtaq · together at FireEye (overlapped)
×8knows the team · via FireEye
×3knows the team · via SlashNext

SlashNext (now part of Varonis as "Varonis Interceptor") offers AI-native email security that detects phishing, business email compromise, and social engineering attacks across email and collaboration apps. It uses NLP and computer vision to analyze message intent and scan URLs and websites, serving enterprise security teams.

AI & Machine LearningCybersecurityEnterprise Software

Founders & leadership

SlashNext was founded in 2014 by Atif Mushtaq.

AMAtif Mushtaq
Atif MushtaqinFounder & Chief Product Officer2014–2025Atif Mushtaq is VP of Data Science at Varonis following the 2023 acquisition of SlashNext, where he served as an executive leading email security product development using natural language processing and computer vision. He previously spent nine years as a senior scientist at FireEye, where he contributed to sandbox-based malware detection technology, and has worked in cybersecurity since 2005.
DS
David StevensNamed on SEC filing

Board

GG
Gaurav GargBoard director
PH
Promod HaqueBoard director

Investors · 7

Enerdigm VenturesPalo Alto
WingPalo Alto · $200K – $20M
Norwest Venture PartnersreportedMenlo Park · $10M – $30M

Also in the syndicate · 4

ACTIVE Fund of the Ayala groupAlter VenturesNorwestTelia Group

Funding

SEC filings, press & company announcements

$58M disclosed across 3 rounds · 2019–2021

  • $26MSeries BOct 2021 · 2 sources

    ACTIVE Fund of the Ayala group, Alter Ventures, Norwest, Telia Group, Wing

    Source ↗
  • $26MraisedOct 2021 · 2 sources

    ACTIVE Fund of the Ayala group, Alter Ventures, Norwest, Telia Group, Wing

    Source ↗
▶$6MraisedMay 2019 · 3 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Atif MushtaqExecutive Officer, Director, Promoter
  • David StevensExecutive Officer, Director
  • Gaurav GargDirector
  • Promod HaqueDirector
Offering amount
$6M
Amount sold
$6M
First sale
Apr 2019
Incorporated
Corporation, Delaware, 2014
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

Founder mafia

2 people who came through SlashNext went on to found or lead other companies.

Gaurav GargBoard MemberFounded RedBack NetworksGaurav NukalaBoard MemberFounded RedBack Networks

In the news

Varonis acquires SlashNext to boost phishing and social engineering defenses - SiliconANGLEsiliconangle.com · Sep 2025Varonis Acquires Email Security Firm SlashNext - SecurityWeeksecurityweek.com · Sep 2025SlashNext Closes $26M Series B Fundingfinsmes.com · Oct 2021SlashNext, which uses AI to combat phishing, raises $26M | VentureBeatventurebeat.com · Oct 2021Phishing Protection Provider SlashNext Raises $26 Million - SecurityWeeksecurityweek.com · Oct 2021AI Phishing Defense Leader SlashNext Closes $26 Million Series B Fundingprnewswire.com · Oct 2021

Frequently asked questions

What does SlashNext do?
SlashNext (now part of Varonis as "Varonis Interceptor") offers AI-native email security that detects phishing, business email compromise, and social engineering attacks across email and collaboration apps. It uses NLP and computer vision to analyze message intent and scan URLs and websites, serving enterprise security teams.
Who founded SlashNext?
SlashNext was founded by Atif Mushtaq in 2014.
Who are SlashNext's investors?
SlashNext's investors include Enerdigm Ventures, Wing, Norwest Venture Partners.
How much funding has SlashNext raised?
SlashNext has disclosed $58M raised across 3 rounds.
Who acquired SlashNext?
SlashNext was acquired by Varonis Systems.
Where is SlashNext headquartered?
SlashNext is headquartered in Pleasanton, US.