Theta Lake is a privately held company. It is backed by 12 investors on record, including Battery Ventures and Lightspeed Venture Partners.

Where is Theta Lake headquartered?

Theta Lake is headquartered in San Mateo, United States.

Who is the CEO of Theta Lake?

Devin Redmond is the CEO of Theta Lake.

Who founded Theta Lake?

Devin Redmond, Rich Sutton, and Anthony J. Cresci are co-founders of Theta Lake, founded in 2017.

What products does Theta Lake sell?

Theta Lake sells Theta Lake Compliant Collaboration Archive.

Theta Lake

Email & Messaging SecuritySan Mateo, United Statesfounded 2017privatethetalake.com ↗

Theta Lake is a cybersecurity company specializing in Email & Messaging Security, founded in 2017 and headquartered in San Mateo, United States. It has raised $67.7M in equity across 4 priced rounds, employs about 112 people, and is privately held.

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updated Oct 11, 2026

Latest Theta Lake news and company activity

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

Oct 2026PartnershipSeismic Expands Financial Services Portfolio With Theta Lake Partnership
Oct 2026PartnershipTheta Lake Powers Webex Compliance Hub at WebexOne 2026
Sep 2026PartnershipTheta Lake and A-LIGN Partner for Financial Services AI Governance Webinar Series
Aug 2026Feature launch

Theta Lake Momentum score

47/ 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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Theta Lake products

Theta Lake Compliant Collaboration ArchiveAI-based archiving and eDiscovery for unified communications platformsDetails ↗

Theta Lake funding

Theta Lake has raised $67.7M in priced equity. Its most recent round was a Series B in March 2022. It has 4 funding rounds on record: Seed, Series A, Venture Round, and Series B. 12 investors are on record, including Battery Ventures and Lightspeed Venture Partners.

Equity raised: $67.7M4 priced rounds
Last round: Series BMar 2022

View the complete funding history

Theta Lake employees and hiring

As of September 2026, Theta Lake has about 112 employees.

Employees: 112
30-day change: 0%
Open roles: 0

See hiring trends

Theta Lake competitors

Competitors of Theta Lake include DeepView. The full competitive set, with overlap scoring, is in the platform.

DeepView

matched by product category and features

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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 Email & Messaging Security

Common questions about Theta Lake.

How much funding has Theta Lake raised?: Theta Lake has raised $67.7M in priced equity. Its most recent round was a Series B in March 2022. It has 4 funding rounds on record: Seed, Series A, Venture Round, and Series B. 12 investors are on record, including Battery Ventures and Lightspeed Venture Partners.
How many people work at Theta Lake?: As of September 2026, Theta Lake has about 112 employees.
Who owns Theta Lake?: Theta Lake is a privately held company. It is backed by 12 investors on record, including Battery Ventures and Lightspeed Venture Partners.
Where is Theta Lake headquartered?: Theta Lake is headquartered in San Mateo, United States.
Who is the CEO of Theta Lake?: Devin Redmond is the CEO of Theta Lake.
Who founded Theta Lake?: Devin Redmond, Rich Sutton, and Anthony J. Cresci are co-founders of Theta Lake, founded in 2017.
Who are Theta Lake's competitors?: Competitors of Theta Lake include DeepView. The full competitive set, with overlap scoring, is in the platform.
What does Theta Lake do?: Theta Lake is a cybersecurity company specializing in Email & Messaging Security, founded in 2017 and headquartered in San Mateo, United States.