REAL PRODUCTS. PUBLIC SOURCES.

Explore revenue-backed businesses.

Public income figures, clear source context, and business case studies for independent founders.

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Real projects86

Source-linked business profiles

Revenue disclosures86

Original metric & reporting context

Open-source projects5

Public code, different business models

Repository signals3

GitHub snapshots, not growth claims

All projects 86 Public revenue Open source

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EmailEngine ↗

Developer tools

A self-hosted gateway that exposes mailbox access through a common REST API.

≈ $13,000MRR · Unspecified $Current MRR stated in the interview published January 24, 2026; measurement date unspecified

Researched profile Founder disclosure in interview

Self-hosted software subscription + enterprise license

Figures are source disclosures, not audited by MRRTrace. Revenue is not profit. Revenue sorting uses the selected metric and currency (default: USD MRR); other metrics follow alphabetically. GitHub stars measure repository interest, not business success.