Executive Summary
We analyzed 9 climate tech communities listed on Hive Index to understand where people gather, what these groups offer, and which communities attract the most interest.
The big picture: In this smaller sample, much of the climate tech landscape on Hive Index sits on Circle.
Source: Hive Index community database · Updated 2026-06-14
- Communities
- 9
- Platforms
- 3
- Avg members
- 35K
- Median members
- 35K
Where Climate Tech Communities Are Hosted
- Circle: 6 communities (67%)
- Slack: 2 communities (22%)
- Discourse: 1 communities (11%)
- 6(67%)Circle
- 2(22%)
Slack - 1(11%)
Discourse
Format mix
- 6(67%)Private membership
- 2(22%)Chat communities
- 1(11%)Forum / feed-based
Private membership is most common (67%), but chat communities is also well represented (22%).
Circle leads (67% of listings).
Audience Size & Access
Community size
- Tiny: 0 communities (0%)
- Small: 0 communities (0%)
- Medium: 0 communities (0%)
- Large: 0 communities (0%)
- Huge: 1 communities (11%)
- Massive: 0 communities (0%)
- Gigantic: 0 communities (0%)
- 0(0%)Tiny<20 members
- 0(0%)Small20-100 members
- 0(0%)Medium100-1,000 members
- 0(0%)Large1,000-10,000 members
- 1(11%)Huge10,000-100,000 members
- 0(0%)Massive100,000-1M members
- 0(0%)Gigantic1M+ members
8 communities have unknown member counts.
Free vs paid
- Free to join: 7 communities (78%)
- Paid or apply-to-join: 2 communities (22%)
Most communities are free to join.
How Climate Tech Differs From Other Categories
Climate Tech is larger, and more chat-heavy, compared with typical Hive Index topics.
| Metric | Climate Tech | Hive Index average |
|---|---|---|
| Free to join | 78% | 85% |
| Median members | 35K | 25K |
| Average members | 35K | 669K |
| Paid or apply-to-join | 22% | 15% |
| Live chat | 67% | 38% |
| Topic pageviews / mo | 47 | 714 |
Feature Mix
Common features appear in at least 15% of listings.
Common Features
- Online/Offline Events: 8 communities (89%)
- Forum: 6 communities (67%)
- Live Chat: 6 communities (67%)
- Job Board: 2 communities (22%)
- Paid Community: 2 communities (22%)
- 89%Online/Offline Events
- 67%Forum
- 67%Live Chat
- 22%Job Board
- 22%Paid Community
Niche Features
- Pairing: 1 communities (11%)
- 11%Pairing
Live Chat appears on 67% of listings.
What Visitors Click
- Outbound clicks / mo
- 11
Platform supply vs. clicks
| Platform | Communities | Share of communities | Outbound clicks | Share of clicks |
|---|---|---|---|---|
| Circle | 6 | 67% | 2 | 22% |
| Slack | 2 | 22% | 5 | 56% |
| Discourse | 1 | 11% | 2 | 22% |
Share is calculated within this topic.
Slack gets 56% of clicks but only 22% of listings, so visitors click it more than you'd expect from supply alone.
Most-clicked formats
- 5(56%)Chat communities
- 2(22%)Forum / feed-based
- 2(22%)Private membership
Most-clicked features
- 7(78%)Live Chat
- 7(78%)Online/Offline Events
- 5(56%)Job Board
- 3(33%)Forum
- 1(11%)Paid Community
- 1(11%)Pairing
Clicks by access model
- 8(89%)Free to join
- 1(11%)Paid or apply-to-join
Top-clicked listings
- 3(33%)Work on Climate
- 2(22%)ClimateBase Community
- 2(22%)Carbon Brief Community
Most clicks go to chat communities and forum / feed-based communities.
Methodology & FAQ
Methodology
This report uses communities in the Hive Index database tagged as Climate Tech. We exclude removed or suppressed listings. Member counts, traffic, features, reviews, and ratings may vary by source and are updated periodically.
- •We only have a handful of listings so far, so treat these numbers as directional.
- •Last updated 2026-06-14