Biggest launches
| Company | Views | Followers when posted | Date |
|---|---|---|---|
| Tavus | 21.2M | 11,500 | 1 Oct 2026 |
| Linear | 6.3M | 115,357 | 25 Mar 2026 |
| Cartesia | 5.4M | 21,087 | 17 Sep 2026 |
| Ideogram | 2.2M | 75,296 | 3 Jun 2026 |
| Enigma | 2.1M | 5,632 | 27 Jul 2026 |
| Mirage | 1.9M | 25,551 | 22 Sep 2026 |
| Granola | 1.7M | 26,606 | 29 Oct 2026 |
| Wonderful | 1.3M | 4,798 | 2 Sep 2026 |
| Flapping Airplanes | 865K | 23,320 | 21 Oct 2026 |
| Thatch | 856K | 346 | 15 Sep 2026 |
| Cowboy Space Corp. | 810K | 15,186 | 11 May 2026 |
| Cohere | 746K | 126,796 | 20 May 2026 |
Breakouts from small accounts
Launches from accounts under 10,000 followers that passed 250K views, one per company.
| Company | Views | Followers when posted | Against following |
|---|---|---|---|
| Enigma | 2.1M | 5,632 | 369x |
| Wonderful | 1.3M | 4,798 | 271x |
| Thatch | 856K | 346 | 2,475x |
| Ando | 353K | 4,348 | 81x |
| Hone | 295K | 3,718 | 79x |
Launch, then a raise
Launches followed by a funding round within 90 days.
Who Index Ventures invests alongside
The firms most often on the same cap tables, by number of shared portfolio companies in the directory.
| Firm | Shared companies |
|---|---|
| Sequoia | 7 of 22 |
| a16z | 7 of 22 |
| SV Angel | 6 of 22 |
| Kleiner Perkins | 5 of 22 |
| A* | 4 of 22 |
| Salesforce Ventures | 4 of 22 |
| General Catalyst | 4 of 22 |
| Lightspeed | 4 of 22 |
| GV | 3 of 22 |
| Spark Capital | 3 of 22 |
By category
| Category | Launches | Median views |
|---|---|---|
| Developer tools | 9 | 451K |
| Frontier labs | 8 | 933K |
| Creative AI | 6 | 1.5M |
| Enterprise AI | 4 | 532K |
| Consumer and creative AI | 3 | 1.1M |
Index Ventures portfolio companies on X
| Company | Launches | Total views | Biggest launch |
|---|---|---|---|
| Tavus | 5 | 24.8M | 21.2M1 Oct 2026 |
| Cartesia | 3 | 9.1M | 5.4M17 Sep 2026 |
| Linear | 4 | 6.9M | 6.3M25 Mar 2026 |
| Ideogram | 3 | 4M | 2.2M3 Jun 2026 |
| Cohere | 6 | 2.6M | 746K20 May 2026 |
| Enigma | 1 | 2.1M | 2.1M27 Jul 2026 |
| Mirage | 1 | 1.9M | 1.9M22 Sep 2026 |
| Granola | 2 | 1.7M | 1.7M29 Oct 2026 |
| Wonderful | 1 | 1.3M | 1.3M2 Sep 2026 |
| Flapping Airplanes | 1 | 865K | 865K21 Oct 2026 |
| Thatch | 1 | 856K | 856K15 Sep 2026 |
| Cowboy Space Corp. | 1 | 810K | 810K11 May 2026 |
| Abacus AI | 1 | 709K | 709K29 Apr 2026 |
| Simile | 1 | 679K | 679K30 Jul 2026 |
| Physical Intelligence | 1 | 417K | 417K13 Oct 2026 |
| Parallel | 1 | 403K | 403K13 Jul 2026 |
| Ando | 1 | 353K | 353K24 Sep 2026 |
| Hone | 1 | 295K | 295K8 Oct 2026 |
| Temporal | 1 | 214K | 214K14 Sep 2026 |
| Spiko | 1 | 32K | 32K6 Oct 2026 |
| Plaid | 1 | 19K | 19K8 Oct 2026 |
| Decagon | 2 | 12K | 11K8 Oct 2026 |
Questions
Which Index Ventures portfolio companies launch on X?
22 Index Ventures-backed companies have 40 launches in the Doomers launch directory. The biggest by total views are Tavus, Cartesia, Linear.
What was the biggest launch from a Index Ventures-backed company?
Tavus, with 21.2M views on 1 Oct 2026.
How do Index Ventures-backed launches compare with other launches on X?
The median Index Ventures-backed launch did 607K views, against 602K across every launch we track. 32% passed a million views. By median views the portfolio ranks 15 of the 20 firms we report on.
Where does this data come from?
Views, followers and dates are read from X. A company counts as backed when the firm invested in any round on record, matched to investment records by the company's website, plus companies whose own posts name the firm.
A known gap: about four in ten companies have no investment record yet, mostly the newest, so very young portfolio companies are under-counted.