Maria Cirino
InvestorFounderFounding Managing Partner at .406 Ventures · Board director at Lexumo · Board director at AuthAir · Board director at Jisto
Boston, Massachusetts
Writes $2M – $5M checks · typically $2M
Founded.406 Ventures
Find your path to Maria
240 people in our graph share verified history with Maria — schools, employers, funds. One of them is your warm intro.
About
Maria Cirino is a serial founder-operator who scaled i-Cube to $50M and sold Guardent to VeriSign for ~$142M, offering technical founders operational mentorship to sell complex enterprise security and infrastructure.
Invests in
AI & Machine LearningCybersecurityData & InfrastructureEnterprise SoftwareHealthtech
Board director at Lexumo
Intro paths
In turn, Maria can intro founders to Lexumo's investors below.
Lexumo's investors · 3
Co-founders at Lexumo
Board director at AuthAir
Intro paths
In turn, Maria can intro founders to AuthAir's investors below.
AuthAir's investors · 1
Board director at Jisto
Intro paths
In turn, Maria can intro founders to Jisto's investors below.
Jisto's investors · 1
Experience
- .406 VenturesFounding Managing Partnercurrent2006 — present
- Simon DataDirectorcurrent2013 — present
- Onapsis Inc.Directorcurrent2014 — present
- CompassInvestorcurrent2012 — present
- KalturaInvestorcurrent2008 — present
- Threat Stack, IncDirector2013 — 2021
- MineralTree, Inc.Director2011 — 2021
- Edgewise NetworksDirector2016 — 2020
- Carbon Black, Inc.Director2005 — 2018
- VaultiveDirector2011 — 2018
- Veracode Inc.Director2005 — 2017
- AuthAir, Inc.Director2013 — 2016
- Attend.comDirector2013 — 2016
- DigitalsmithsDirector2008 — 2014
- ThreatGRID, part of CiscoDirector2012 — 2014
- MementoDirector2006 — 2012
- AdtuitiveDirector2009
- VeriSignSVP Security Services2004 — 2007
- GuardentCEO and Founder2000 — 2004
- i-CubeSVP Sales and Marketing1997 — 2000
- ShivaVP Sales, Americas1993 — 1997
- LotusSenior Manager Channel Marketing1991 — 1993
- Software CityVP and General Management1985 — 1990
Deals · 8
OnapsisBoard seat
via .406 Ventures · filed Apr 2018 · $31M raise
Threat StackBoard seat
via .406 Ventures · filed Sep 2017 · $37.5M raise
JistoBoard seat
via .406 Ventures · filed Feb 2017 · $2.4M raise
Rapid Focus SecurityBoard seat
via .406 Ventures · filed Apr 2016 · $13.1M raise
Carbon BlackBoard seat
via .406 Ventures · filed Feb 2016 · $68.5M raise
LexumoBoard seat
via .406 Ventures · filed Feb 2016 · $4.9M raise
AuthAirBoard seat
via .406 Ventures · filed May 2015 · $2.5M raise
Attend.com, Inc.Board seat
via .406 Ventures · filed Feb 2015 · $2.5M raise
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Led
Pwnie Express
Board seats
Investor
AttendAttendDigitalSmithsKalturaMementoMineralTreeSimon AISimon DataVaultive
Sources: curated public sources · SEC Form D filings.
Colleagues at .406 Ventures
Frequently asked questions
- Who is Maria Cirino?
- Maria Cirino is a serial founder-operator who scaled i-Cube to $50M and sold Guardent to VeriSign for ~$142M, offering technical founders operational mentorship to sell complex enterprise security and infrastructure.
- Where does Maria Cirino work?
- Maria Cirino is Founder of .406 Ventures and Founding Managing Partner at .406 Ventures and Board director at Lexumo and Board director at AuthAir and Board director at Jisto.
- What does Maria Cirino invest in?
- Maria Cirino invests in AI & Machine Learning, Cybersecurity, Data & Infrastructure, Enterprise Software, Healthtech.
- What check size does Maria Cirino write?
- Maria Cirino typically writes checks of $2M – $5M.
- What companies did Maria Cirino found?
- Maria Cirino founded .406 Ventures.
- What boards does Maria Cirino sit on?
- Maria Cirino holds tracked board seats at Attend.com, Inc., AuthAir, Carbon Black, Jisto, Lexumo, MineralTree, Onapsis, Rapid Focus Security, Threat Stack.
- What companies has Maria Cirino invested in?
- Investments tracked here include Jisto, Pwnie Express, Threat Stack, Attend, Attend, Carbon Black, DigitalSmiths, Jisto, Kaltura, Memento, MineralTree, Onapsis, and 4 more.
- Where did Maria Cirino go to school?
- Maria Cirino studied at Mount Holyoke College.
- Does Maria Cirino lead rounds?
- Yes — Maria Cirino has led 3 tracked investments.
Founder mafias
VeriSign mafia24
Also came through, then founded or led a company.
+ 17 more
Mount Holyoke College mafia13
Also came through, then founded or led a company.
+ 6 more
Kaltura mafia8
Also came through, then founded or led a company.
+ 1 more
.406 Ventures mafia5
Also came through, then founded or led a company.
Same school
Also attended Mount Holyoke College41
+ 35 more
Shared employers
Also worked at Simon Data4
Also worked at MineralTree, Inc.3
Also worked at Edgewise Networks1
Also worked at VeriSign64
+ 58 more

























































