Manybrain, Inc. Due Diligence

Run due diligence on Manybrain, Inc.: check compliance and get alerts when suppliers or ownership change.

United States · owned by Independent (United States) · mailinator.com · 9 vendors

Manybrain, Inc. operates Mailinator, the original disposable and temporary email testing platform. It provides developers, QA teams, and DevOps professionals with scalable email and SMS workflow testing tools, including support for one-time passcodes, multi-factor authentication, and automated email validation via API. Mailinator offers both free public inboxes and enterprise-grade private domain testing solutions.

Resilience scores

Technology vendors

Insights

Last updated 2026-11-01 · revision 20

9 direct vendors, 139 subvendors

Direct vendors by controlling owner country (sample)

Subvendors by controlling owner country (sample)

Compliance

7 in-scope frameworks identified; showing 3.

TCPA & CTIA Guidelines — No public evidence

Manybrain, Inc. offers SMS testing capabilities, which involves the use of telephone numbers and the receipt of text messages, placing it within the purview of regulations governing telephone communication.

SOC 2 (source) — Evidence found

Manybrain, Inc. operates in the technology sector, where customers, particularly enterprise clients, commonly expect SOC 2 attestation as a baseline for security and availability.

Evidence: https://www.mailinator.com/security-details/, https://www.mailinator.com/v4/security.html, https://www.mailinator.com/richard-bradshaws-a-to-z-mailinator-guide/, https://www.mailinator.com/what-is-mailinator/

GDPR (source) — No public evidence

Manybrain, Inc. operates a globally accessible website and provides services that may be used by individuals in the EU/EEA, which would involve processing their personal data.

Financials

Three-year financials

Financial Resilience Score: 6/10

Manybrain, Inc. is a bootstrapped, debt-free private company that has operated Mailinator since 2003 without any external funding. Its longevity (20+ years) and lack of outside investors strongly imply positive operating cash flow, as there is no capital base to subsidise losses. The company maintains a very low fixed-cost structure with a headcount in the single digits, which provides meaningful operating leverage against its subscription revenue base. Enterprise-grade infrastructure certifications (SOC 1/2, HIPAA, HITECH, PCI DSS via Linode and DigitalOcean) support its ability to sell to larger enterprise QA customers. However, resilience is tempered by significant transparency and concentration risks. There are no audited financials, no SEC filings, and third-party revenue estimates range widely from under $5M to ~$17M, making independent assessment of profitability, liquidity, and solvency impossible. Key-person risk is elevated given the tiny headcount and founder-led structure, and the company is reportedly 'looking for investor,' hinting at a possible strategic transaction. Competitive pressure from YOPmail, 10minutemail, Mailosaur, and MailSlurp, combined with single-product concentration on Mailinator, further caps the resilience score.

Key strengths: Bootstrapped and debt-free since 2003, 20+ year operating history implies positive cash flow, Very low fixed cost base (single-digit headcount), Enterprise-grade security certifications (SOC 1/2, HIPAA, PCI DSS), Durable niche in disposable email and QA automation

Risk factors: Key-person risk with headcount under 10, Crowded competitive landscape (YOPmail, Mailosaur, MailSlurp, etc.), No audited financials or public disclosure, Single-product concentration on Mailinator, Potential founder-exit risk; reportedly seeking investor

Revenue by geography

Revenue by product/service

Workforce by country

Signed-in users can see whether their own company is exposed to this vendor's disruption, plus the full sub-vendor list and country breakdowns, every in-scope compliance framework plus gaps and next steps, and alerts when any of it changes.

View the full interactive report