- Membership is open to individuals aged 18 and above who identify as atheists, agnostics, freethinkers, humanists, secularists, or non‑religious.
- All members must be Kenyan Citizens.
- Members must affirm their support for the Society’s mission to advance secularism, rational thought, and equality for non‑religious individuals in Kenya.
- Membership is open to all, without discrimination based on gender, sex, ethnicity, religion, or political affiliation.