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Dimitri Sirota - portfolio and founded companies

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About Dimitri Sirota

Dimitri Sirota is an entrepreneur, an angel investor and a board member based out of Seattle, United States. They did their Masters from UBC in 1995. Their journey in the startup ecosystem started in 2002 through Layer 7 Technologies. Dimitri Sirota has founded 2 companies. They are currently acting as the, and as the co-founder of BigID. As an angel investor, Dimitri Sirota has a portfolio of 9 companies, focusing primarily on sectors like Enterprise Applications, Enterprise Infrastructure and 2 more sectors. They invest in companies across United States, Australia and 4 more. Their most notable investments include companies like Snyk and Protect AI. Dimitri Sirota is currently serving as a board member at BigID, which they founded.
Key Metrics
Location
Seattle, United States
Board Memberships
Investment Portfolio
Top locations of Investment
Contact Details

Dimitri Sirota's Investments

Dimitri Sirota has invested in 9 companies. Their most recent investment was in Prime Security (Seed Round) on Oct 09, 2024. Their investments are primarily in Enterprise Applications, Enterprise Infrastructure and 2 more sectors. Their investment portfolio include companies in United States, Australia and 4 more.
Here is the list of recent investments by Dimitri Sirota:
Date
Company
Round
Round Amount
Co-Investors
Oct 09, 2024
Seed
$6M
Aug 09, 2023
Seed
$3.5M
Dec 15, 2022
Seed
$13.5M
Dec 12, 2022
Series G
$196M
View all Investments by Dimitri Sirota
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Dimitri Sirota's Portfolio Exits

Dimitri Sirota has 3 Portfolio Exits namely Protect AI, AtomicJar and Kivera.
Here are the details of all portfolio exits by Dimitri Sirota:
Company
Description
Location
Total Funding
Founded Year
Exit Type
Exit Date
Provider of AI-based ML security solutions
Seattle (United States)
$129M
2022
Acquisition
Apr 28, 2025
Provider of automated testing tools
Newark (United States)
$29M
2021
Acquisition
Dec 12, 2023
Provider of cloud security solutions for preventive controls and data protection
Sydney (Australia)
$3.5M
2020
Acquisition
Oct 08, 2024
View all Portfolio Exits by Dimitri Sirota

Dimitri Sirota's Portfolio Unicorns

Dimitri Sirota has 1 unicorn in the portfolio which is Snyk.
Here is the detail of this portfolio unicorn:
Company
Short Description
Total Funding
Founded Year
Current Stage
Location
Provider of a platform securing code, models, and agents in applications
$1.32B
2015
Series G
Boston
View all Portfolio Unicorns by Dimitri Sirota

Dimitri Sirota's Founded Companies

Dimitri Sirota has founded 2 companies namely BigID and Layer 7 Technologies.
Here are the details of all founded companies by Dimitri Sirota:
Company
Short Description
Total Funding
Founded Year
Current Stage
Location
Provider of data security, privacy, compliance, and AI governance platform
$308M
2016
Series D
New York City
Integration API PaaS
$19.9M
2002
Early Stage
Herndon
View all Founded Companies by Dimitri Sirota

Dimitri Sirota's Board Memberships

Dimitri Sirota has 1 current board membership in BigID.
Here is the detail of this board membership:
Company
Description
Total Funding
Current Stage
Membership Status
Appointment Date
Cessation Date
Provider of data security, privacy, compliance, and AI governance platform
$308M
Series D
CURRENT
Mar 02, 2016
-
View all Board Memberships of Dimitri Sirota

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