About
Leigh Honeywell is the founder and CEO of Tall Poppy, a platform addressing online harassment protection. She previously held a Technology Fellowship at the ACLU and worked in engineering roles at companies including Slack and Microsoft.
Founder/CEO at Tall PoppyYC S18
Intro paths
YC
Leigh went through Y Combinator (Summer 2018) — any YC alum in your network can reach them through the YC community.
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In turn, Leigh can intro founders to Tall Poppy's investors below.
Tall Poppy's investors · 3
Co-founders at Tall Poppy
LD
Logan DeanFounder/CTO
Experience
- 1PasswordLead Security Strategist, Business + Executivecurrent2024 — presentOttawa, Ontario, Canada
- iVerifyFounding Advisorcurrent2023 — present
- Pioneer FundVenture Partnercurrent2019 — presentSan Francisco Bay Area
- Tall PoppyCEO2018 — 2024San Francisco Bay Area
- ACLUTechnology Fellow2017 — 2018San Francisco Bay Area
- SlackSecurity Response Manager2016 — 2017San Francisco Bay Area
- SlackSenior Staff Security Engineer2015 — 2016San Francisco Bay Area
- Heroku (a Salesforce.com Company)Senior Platform Security Engineer2014 — 2015San Francisco Bay Area
- MicrosoftSecurity Program Manager 22011 — 2014Greater Seattle Area
- IndependentConsultant2006 — 2011Toronto, Canada Area
- SymantecMalware Operations Engineer2008 — 2010
- Bell CanadaTechnology Applications Specialist2005
Skills & more
Executive LeadershipRisk ManagementSecurity99Information Security99VoIP29Firewalls32CISSP14Security Development Lifecycle12System Administration19Identity Management10Cloud Computing27Telecommunications8
+12 more
Penetration TestingNetwork SecurityEnterprise ArchitectureDisaster RecoveryNetwork ArchitectureInformation Security ManagementDevOpsApplication Security ArchitectureUbuntuLinuxOpen SourceEnterprise SoftwareLanguages English · French · Spanish
- Psychological First Aid — Coursera Course Certificates
From Leigh's professional profile.
Frequently asked questions
- Who is Leigh Honeywell?
- Leigh Honeywell is the founder and CEO of Tall Poppy, a platform addressing online harassment protection. She previously held a Technology Fellowship at the ACLU and worked in engineering roles at companies including Slack and Microsoft.
- Where does Leigh Honeywell work?
- Leigh Honeywell is Founder/CEO of Tall Poppy.
- What companies did Leigh Honeywell found?
- Leigh Honeywell founded Tall Poppy.
- Where did Leigh Honeywell go to school?
- Leigh Honeywell studied at Rogers Cybersecure Catalyst, Toronto Metropolitan University (Emerging Leaders Cyber Initiative); University of Toronto - Innis College (BSc., Computer Science (Major)).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
+ 8,766 more
Heroku mafia6
Also came through, then founded or led a company.
iVerify mafia2
Also came through, then founded or led a company.
Shared employers
Also worked at Tall Poppy1
Also worked at ACLU3
Also worked at Slack55
Mamoon HamidPartner at Kleiner PerkinsHans TungManaging Partner at Notable CapitalStewart ButterfieldCo-founder of Slack and FlickrCal HendersonCo-founder & CTO of SlackDave MunichielloInvestor at GV (Google Ventures)Neha JewalikarDirector of Communications at Scale Venture Partners
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+ 49 more
Also worked at Microsoft1,188
Reid HoffmanCo-founder of LinkedIn; Partner at GreylockGarry TanPresident & CEO of Y CombinatorNat FriedmanCo-lead of Meta Superintelligence Labs; co-founder of NFDGKai-Fu LeeChairman of Sinovation Ventures and CEO of 01.AIBill GatesCo-founder of Microsoft; Chair of the Gates FoundationMike KriegerCo-founder of Instagram; Chief Product Officer at Anthropic
+ 1,182 more