Sublime Security

Trusted

https://sublime.security/

Last activity: 12.10.2026

Active

Categories: ComputerPlatformSecurity

Sublime Security is a cybersecurity company that provides a platform for code review and security analysis. It seems that Sublime Security has a unique approach to security analysis and code review with AI. You can find more information about their platform on their website.

Followers

404

Website visits

6.5K /mo.

Mentions

Overview

Location

United States, District of Columbia, Washington

Employees

11-50

Total raised

$89.8M

Founded date

2019

Investors 2

Date	Name	Website
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Jul 10, 2026	Index Ventures	indexventures.com

Funding Rounds 3

Date	Series	Amount	Investors
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Apr 25, 2024	Series A round	$20M
Feb 27, 2023	Funding round	$9.8M

Mentions in press and media 24

Date	Title	Description
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Oct 31, 2025	Agentic AI Powers Sublime Security's $150M Series C Round	Sublime Security secured $150 million in Series C funding. This significant investment propels its agentic AI email security platform. The platform utilizes advanced AI agents. They autonomously detect and triage threats. New defenses deplo...
Oct 28, 2025	Sublime Security Lands $150M Series C	WASHINGTON, DC, Sublime Security, the agentic email security platform, today announced that it has raised $150 million in Series C funding. >> Click here for more funding data on Sublime Security >> To export Sublime Security f...
Oct 28, 2025	Sublime Security Secures $150M in Series C Funding	Sublime Security, a Washington, DC-based agentic email security platform, raised $150M in Series C funding. The round was led by Georgian with participation from Avenir and 01A, and existing investors Index Ventures, IVP, Citi Ventures, and...
Dec 13, 2024	Sublime Security's $60 Million Bet on Email Safety	In a world where emails are the lifeblood of business communication, the threats lurking in the digital shadows are ever-present. Sublime Security, a Washington, DC-based company, has just raised $60 million in Series B funding to bolster i...
Dec 12, 2024	Sublime Security Raises $60M in Series B Funding	Sublime Security, a Washington, DC-based provider of an adaptive, AI-powered email security platform, raised $60M in Series B funding. The round was led by IVP, with participation from new investor Citi Ventures, as well as existing investo...
Dec 12, 2024	Sublime Security Grabs $60M Series B	WASHINGTON, DC, Sublime Security, the adaptive, AI-powered email security platform, announced it has raised $60 million in Series B funding. >> Click here for more funding data on Sublime Security >> To export Sublime Security ...
Dec 12, 2024	Email security provider Sublime Security raises $60M for platform growth Your vote of support is important to us and it helps us keep the content FREE. One click below supports our mission to provide free, deep, and relevant content. Join our community on YouTube Join the community that includes ...	Artificial intelligence-powered email security platform provider Sublime Security Inc. announced today that it has raised $60 million in new funding to support its continued investment in its platform and community. Founded in 2019, Sublime...
Nov 18, 2024	Security Week 2447: прогнозы на 2025 год	На прошлой неделе эксперты «Лаборатории Касперского» опубликовали список прогнозов по развитию киберугроз на 2025 год. Такие предсказания делаются ежегодно уже в течение многих лет, поэтому всегда можно оценить, насколько верными оказались ...
Nov 17, 2024	3 leadership lessons we can learn from ethical hackers	Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More When you hear the word “hacker,” what comes to mind? The term originally described computer enthusiasts exploring...
Apr 29, 2024	Sublime Security: Fortifying Email Defenses with $20 Million Boost	Sublime Security, a powerhouse in AI-driven email security, has secured a hefty $20 million in Series A funding. Index Ventures spearheaded the investment charge, with Decibel Partners and Slow Ventures also jumping on board. Cybersecurity ...
Apr 25, 2024	Sublime Security Raises $20M Series A	WASHINGTON, DC, Sublime Security, the AI-powered, programmable email security platform, announced today that it has raised $20 million in Series A funding. >> Click here for more funding data on Sublime Security >> To export Su...
Apr 24, 2024	Sublime Security Raises $20M Series A Funding	Sublime Security, a Washington, DC-based provider of an AI-powered, programmable email security platform, raised $20M in Series A funding. The round was led by Index Ventures with participation from previous investors Decibel Partners and S...
Feb 27, 2023	Money Moves: Sublime raises $9.8M to build out email security platform	Money Moves is a column where we chart the funding raises of tech companies across the region. Have a tip? Email us at [email protected]. With a $9.8 million round, DC-based email tech startup Sublime is moving out of stealth The startup has ...
Feb 22, 2023	Sublime Security Raises $9.8 Million and Launches the First Open Email Security Platform To Enable Community Collaboration Against Phishing	Sublime, the first open email security platform that lets anyone write, run, and share rules to detect and block email-originated threats such as phishing attacks, has launched to the public and raised $9.8 million in funding. The platform ...
Feb 22, 2023	Sublime Security Raises $9.8M in Funding	Sublime Security, a Washington, DC-based provider of an open email security platform, raised $9.8M in funding. The round was led by Decibel with participation from Slow Ventures, Sounil Yu, Martin Roesch, Jerry Perullo, Kevin Patrick Mahaff...
Feb 21, 2023	Sublime nabs $9.8M for an anti-phishing email security platform built on collective, crowdsourced rules	Malicious hackers are getting ever more creative with the techniques they use to break into networks to steal data and wreak havoc, but their primary route for opening that door has remained pretty consistent. Email is by far the most popul...
Feb 21, 2023	Sublime Security Raises $9.8M	WASHINGTON, DC, Sublime has launched to the public and raised $9.8 million in funding. >> Click here for more funding data on Sublime Security >> To export Sublime Security funding data to PDF and Excel, click here Sublim...
	Sublime Security	“Sublime lets you write, run, and share rules to block phishing attacks, hunt for threats, and more.”
	Sublime Security	“Email security solutions with full transparency and control. Stop vendor dependency with explainable AI detection, customizable rules, and automated triage. Try free.”
	Sublime Security: AI-Powered Programmable Email Security Company Raises $20 Million	Sublime Security, an AI-powered programmable email security platform, announced that it has raised $20 million in Series A funding. Index Ventures led the round, which included previous investors Decibel Partners and Slow Ventures. Cybersec...
	Manage your consent preferences D.C. cybersecurity startup Sublime Security raises $60M to fight email scams made with AI
	Sublime Security	“Sublime prevents email attacks like BEC, credential phishing, and malware using Detection-as-Code and behavioral AI.”
	Sublime Security	“Sublime prevents email attacks using AI and a transparent detection engine. Gain control and spend less time on email-originated incidents.”

Reviews 0

FAQ about Sublime Security

When was Sublime Security founded?

Sublime Security was founded in 2019.

How much funding has Sublime Security raised?

Sublime Security has raised $89.8M in total across 3 funding rounds.

What funding rounds has Sublime Security raised?

Parsers VC lists 3 funding rounds of Sublime Security, among them a Series A round of $20M on Apr 25, 2024 and a funding round of $9.8M on Feb 27, 2023.

Who has invested in Sublime Security?

Parsers VC lists 2 investors of Sublime Security, among them Index Ventures.

What has the press written about Sublime Security?

Parsers VC has collected 24 articles mentioning Sublime Security, among them “Agentic AI Powers Sublime Security's $150M Series C Round” (Oct 31, 2025) and “Sublime Security Lands $150M Series C” (Oct 28, 2025).

Is Sublime Security still active?

Yes, Sublime Security is active; its latest activity on Parsers VC dates from Oct 12, 2026.