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Bolster

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Provides 360-degree digital risk protection purpose-built for the modern enterprise

Santa Clara, United StatesFounded 2017Cybersecurity
Valuation $50–100M Last recorded · 2024
Revenue $1–10M Latest reported FY
Headcount 100–500 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Bolster and the history behind them.

About Bolster

Bolster.ai is a cybersecurity startup that specializes in protecting businesses from online fraud, phishing, and other digital threats. The company leverages advanced artificial intelligence (AI) technology to offer real-time detection and prevention solutions. Bolster.ai serves a diverse range of clients, including large enterprises, SaaS (Software as a Service) platforms, and legal and brand teams. These clients benefit from Bolster.ai's ability to safeguard their external attack surfaces, which are the parts of their digital presence that are exposed to potential threats.

Operating in the cybersecurity market, Bolster.ai addresses the growing need for robust online protection as digital threats become more sophisticated. The company's platform offers out-of-the-box detection for phishing, brand infringement, scams, and typosquat attacks (where attackers register domain names similar to legitimate ones to deceive users). Bolster.ai's technology is designed to be easily integrated into existing systems, allowing businesses to quickly enhance their security measures without significant additional resources.

Bolster.ai's business model revolves around providing its services through a subscription-based model. Clients pay for access to the platform, which includes real-time detection APIs (Application Programming Interfaces) and industry-leading takedown technology. This ensures continuous protection and immediate response to threats, minimizing potential damage to the client's brand and operations.

The company generates revenue by offering different tiers of service, tailored to the specific needs of its clients. This could range from basic phishing detection to comprehensive protection packages that include social media monitoring and external attack surface protection. By providing these scalable solutions, Bolster.ai can cater to both small businesses and large corporations.

In summary, Bolster.ai is a cutting-edge cybersecurity firm that uses AI to protect businesses from online threats, serving a wide range of clients in the digital space. Its subscription-based model ensures ongoing revenue while providing essential security services.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2017
Headquarters
Santa Clara, United States
Employees
94
Open positions
6
Dealroom signal
81.2/100
Industry
Security, Enterprise Software
Sector
Cybersecurity, Core AI, Sustainable Development Goals, SafetyTech, Hard Tech, AI Applications, DT and LS
Technology
Artificial Intelligence, Deep Tech, Machine Learning
Business model
SaaS
Client focus
b2b

Funding history

5 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES B✓Equity / VC May 2024 $14M $56M Cervin Ventures · Thomvest Ventures · Crosslink Capital · Cheyenne Ventures ↗
EARLY VC✓Equity / VC Oct 2022 $15M $60M Cervin Ventures · Cheyenne Ventures · Thomvest Ventures · Crosslink Capital ↗
Showing the latest 2 of 5 recorded eventsBook a demo for the full funding history →

Financials

Revenue over time

Revenue, earnings and other financial measures where available. Years marked “E” are estimates.

YearRevenueGrowth
2026
2025
2024
2023
2022
2021
2020 —
Company filings, research estimates and Dealroom dataBook a demo for the full financial model →

Growth signals

Bolster website traffic

Latest recorded traffic for Bolster is 230K monthly website visits, down 4.2% over the last three months. Bolster's team grew 8% over the past year.

Latest monthly visits230K 3-month web change-4.2% 1-year team growth+8%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

13 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A9 investors entered at this stage

  • Crosslink Capital
  • Thomvest Ventures
  • Rain Capital
  • Standard Treasury
  • Cervin Ventures
  • Cheyenne Ventures
  • Liberty Global Ventures
  • M12
  • Transform Capital

Other known investors4 additional known investors

  • CMU VentureBridge
  • Cyber Mentor Fund
  • Nexxus Ventures
  • Umesh Padval
Team profiled 20 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
3 countries with
team presence
🇺🇸 United States55.1%
🇮🇳 India43.6%
🇦🇺 Australia1.3%
3 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Bolster on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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