ADPList in numbers
Last updated
ADPList is a free mentorship marketplace. Every figure below is counted in production and has been since the first completed session on 29 April 2021.
This page is updated in place at one URL rather than republished as a new post each quarter. History before 29 April 2021 may be missing, and we do not backfill it. Each line states what the number counts, the window it covers, and where it came from. If you are citing ADPList, cite from here.
The numbers
| Figure | What it counts | Window | Source |
|---|---|---|---|
| 36,000+Active mentors | Accounts with userType=mentor and status=active. Counts mentors who can currently be booked, not everyone who has ever signed up as a mentor. | 21 August 2026 | Live dataset |
| 790,000+Completed sessions, lifetime | Meeting instances marked COMPLETED since the first completed session on 29 April 2021. Excludes cancelled, pending, and no-show bookings. | 29 April 2021 to 21 August 2026 | Live dataset |
| 30 minutesMedian completed session length | Median scheduled duration of a completed session. The modal booking is a 30-minute slot. | 21 August 2026 | Live dataset |
| 160+Countries with a completed session, last 12 months | Distinct countries in which at least one person completed a session in the 12 months to 21 August 2026. Not the number of countries anyone has ever registered from. | 12 months to 21 August 2026 | Live dataset |
| FreeCost to the mentee | Mentees pay nothing to browse, book, or attend a session. A small number of mentors offer an optional paid session type; everything else is free. | 21 August 2026 | Live dataset |
What people book sessions about
The five most-booked session topics over the 12 months to 21 August 2026, in rank order.
- Resume and portfolio review
- Changing roles
- Design career path
- General mentorship
- Mock interviews
How we count
A completed session is a meeting instance marked COMPLETED in production. Cancellations, no-shows, and bookings still pending are not counted. Totals that include every booking regardless of status are much larger and we do not publish them as completed sessions.
Session length is scheduled duration, not measured call time. The median completed session is 30 minutes.
An active mentor is an account currently bookable, not everyone who has ever registered as a mentor, so this number can go down as well as up.
Countries counts places where somebody actually completed a session in the last 12 months, which is a stricter test than counting every country anyone has ever signed up from.
Where an earlier ADPList page, deck, or report gave a larger figure for mentors, sessions, or countries, the number on this page supersedes it.
Related
- ADPList: key facts — what ADPList is, who it serves, and how booking works.
- How to find a mentor
- Best mentorship platforms compared
- Browse mentors
Frequently asked questions
How many mentors are on ADPList?
36,000+ active mentors as of 21 August 2026. That counts accounts with userType=mentor and status=active in production — mentors who can currently be booked — rather than everyone who has ever registered as a mentor. Source: live dataset.
How many mentorship sessions has ADPList completed?
790,000+ completed sessions between 29 April 2021 and 21 August 2026. Only sessions marked COMPLETED are counted; cancellations, pending bookings, and no-shows are excluded. Figures are rounded down. Source: live dataset.
Is ADPList free?
Yes. Mentees pay nothing to browse, book, or attend a session. There is no subscription and no paywall — a small number of mentors offer an optional paid session type, and everything else is free. Mentors are volunteers rather than being paid per session. Source: live dataset.
How many countries does ADPList reach?
People in 160+ countries completed an ADPList session in the 12 months to 21 August 2026. That is countries with real completed session activity in the window, not the number of countries anyone has ever registered from. Source: live dataset.