Who owns RealDefense?

RealDefense is a privately held company. It is backed by 4 investors on record, including Corbel Capital Partners and Sunflower Bank.

Where is RealDefense headquartered?

RealDefense is headquartered in Pasadena, United States.

Who founded RealDefense?

Gary Guseinov and Sean Whiteley are co-founders of RealDefense, founded in 2017.

RealDefense

Endpoint SecurityPasadena, United Statesfounded 2017privaterealdefen.se ↗

RealDefense is a cybersecurity company specializing in Endpoint Security, founded in 2017 and headquartered in Pasadena, United States. It has raised $80M in equity across 2 priced rounds, plus $50M debt & credit, employs about 77 people, and is privately held.

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updated Oct 26, 2026

Latest RealDefense news and company activity

What RealDefense did, dated — selected moves from the record, one per kind, newest first.

Aug 2026Exec changeMark Webb Joins RealDefense as VP of Contact Center Operations
Jan 2026Product launchRealDefense Launches iolo Updater™: One-Click Software and Driver Maintenance for Windows PCs
Sep 2023Funding roundInvestors Double-Down on RealDefense with Additional Financing To Accelerate Corporate Acquisitions and Strengthen Balance Sheet
Jul 2023Acquisition

RealDefense Momentum score

57/ 100

Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.

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RealDefense products

RealDefenseConsumer security & productivity software suite with a partner revenue-share model.Details ↗

RealDefense funding

RealDefense has raised $80M in priced equity, plus $50M debt & credit. Its most recent round was a Debt Financing in September 2023. It has 4 funding rounds on record: Debt Financing, Growth Equity, Debt Financing, and Venture Round. 4 investors are on record, including Corbel Capital Partners and Sunflower Bank.

Equity raised: $80M2 priced rounds
Last round: Debt FinancingSep 2023
Other instruments: $50M debt

View the complete funding history

RealDefense employees and hiring

As of September 2026, RealDefense has about 77 employees, up 1% over the last 30 days.

Employees: 77
30-day change: +1%
Open roles: 0

See hiring trends

RealDefense competitors

Competitors of RealDefense include Kaseya. The full competitive set, with overlap scoring, is in the platform.

Kaseya

ranked by CybersecTools comparison demand, 90 days

View the competitive set with overlap scores

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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security
Competitorsfull set, overlap scored
Leadershipevery exec, with roles
Customersnamed publicly, with sources
Reviews & newssentiment, coverage, cadence

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Funding, round by round, with the investors
Headcount, hiring and the people
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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in Endpoint Security

Common questions about RealDefense.

How much funding has RealDefense raised?: RealDefense has raised $80M in priced equity, plus $50M debt & credit. Its most recent round was a Debt Financing in September 2023. It has 4 funding rounds on record: Debt Financing, Growth Equity, Debt Financing, and Venture Round. 4 investors are on record, including Corbel Capital Partners and Sunflower Bank.
How many people work at RealDefense?: As of September 2026, RealDefense has about 77 employees, up 1% over the last 30 days.
Who owns RealDefense?: RealDefense is a privately held company. It is backed by 4 investors on record, including Corbel Capital Partners and Sunflower Bank.
Where is RealDefense headquartered?: RealDefense is headquartered in Pasadena, United States.
Who founded RealDefense?: Gary Guseinov and Sean Whiteley are co-founders of RealDefense, founded in 2017.
Who are RealDefense's competitors?: Competitors of RealDefense include Kaseya. The full competitive set, with overlap scoring, is in the platform.
What does RealDefense do?: RealDefense is a cybersecurity company specializing in Endpoint Security, founded in 2017 and headquartered in Pasadena, United States.