Inboxroad Due Diligence

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

Netherlands · owned by Independent (Netherlands) · inboxroad.com · 13 vendors

Inboxroad is a Dutch email marketing and deliverability platform that provides businesses with tools to create, send, and track email campaigns via a drag-and-drop email builder, SMTP relay, and Email API. Founded in Amsterdam in 2012, the company focuses on maximising inbox delivery rates, reporting an average deliverability rate of 96.1% across over 130 million emails sent monthly. It serves marketers and developers with features including contact list management, segmentation, dedicated IPs, and campaign analytics.

Resilience scores

Technology vendors

Insights

Last updated 2026-08-10 · revision 3

13 direct vendors, 135 subvendors

Direct vendors by controlling owner country (sample)

Subvendors by controlling owner country (sample)

Compliance

8 in-scope frameworks identified; showing 3.

ISO 27001 (source) — No public evidence

Evidence: https://inboxroad.com, https://inboxroad.com/terms-of-service/, https://www.iso.org/standard/27001

Validity Sender Certification Program — Evidence found

Evidence: https://inboxroad.com/email-deliverability/unlocking-better-email-performance-at-inboxroad-with-sender-certification/, https://www.validity.com/everest/sender-certification/

ePrivacy Directive — No public evidence

Evidence: https://inboxroad.com/terms-of-service/, https://inboxroad.com, https://autoriteitpersoonsgegevens.nl/en/themes/internet-phone-tv-and-post/cookies, https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32002L0058

Financials

Three-year financials

Financial Resilience Score: 6/10

Inboxroad is a small, founder-led Dutch SaaS company operating in the email deliverability niche since 2012. Its resilience is supported by recurring, usage-based SMTP/API revenue that tends to be sticky due to switching costs (warmed dedicated IPs, API integrations), a lean cost base from a small headcount, and over 12 years of continuous operation with no visible signs of distress. The company appears to be bootstrapped or founder-financed with no institutional venture funding rounds identified, suggesting disciplined capital management. However, the company faces meaningful structural risks. It competes against well-funded giants like SendGrid/Twilio, Mailgun/Sinch, Postmark, Brevo, Mailjet, and Amazon SES, creating pricing pressure. Deliverability businesses are exposed to sudden mailbox-provider policy changes (e.g., 2024 Gmail/Yahoo bulk-sender rules). The origin story suggests possible customer concentration risk from its founding travel agency client, and as a small private B.V., statutory financial figures (revenue, EBIT, equity) are not publicly available, limiting external visibility on cash flow, leverage, and profitability. Key-person risk with the founder and small team also weighs on the score.

Key strengths: Recurring SaaS-style usage-based revenue with high switching costs, Over 12 years of continuous operation since 2012, Lean team with low fixed-cost base, Technical defensibility from deliverability expertise, International customer base spanning 15+ countries, Actively hiring and investing in product (2025 webhook upgrade)

Risk factors: Competition from well-funded giants (SendGrid, Mailgun, Amazon SES, Brevo), Exposure to sudden mailbox-provider policy changes (Gmail/Yahoo bulk-sender rules), Potential customer concentration from founding travel agency client, Financial opacity as small private B.V., Key-person risk with founder-led small team, No institutional funding backstop identified

Workforce by country

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