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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3 projects matching “SaaS”

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#	Project	Category / model	Reported revenue	Evidence	GitHub ⓘ
01	EmailEngine A self-hosted gateway that exposes mailbox access through a common REST API. Researched profile	Developer toolsSelf-hosted software subscription + enterprise license	≈ $13,000MRR · Unspecified $Current MRR stated in the interview published January 24, 2026; measurement date unspecified	Founder disclosure in interviewChecked Oct 19, 2026	—
02	Lemon Squeezy Digital product checkout with merchant-of-record services. Researched profile	Developer toolsUsage-based	> $1,000,000ARR · USDhistorical milestone nine months after 2021 public launch	Company/founder self-disclosureChecked Oct 18, 2026	—
03	Zernio A unified API for connecting accounts and adding social publishing, messaging and related marketing functions. Researched profile	Developer toolsUsage-based connected-account billing + metered services	> $1,000,000ARR · Unspecified $Founder said the product crossed 1M ARR about a month before the interview published April 30, 2026; exact milestone date unspecified	Founder disclosure in interviewChecked Oct 19, 2026	—

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.