Biggest launches
| Company | Views | Followers when posted | Date |
|---|---|---|---|
| Builder.io | 22M | 138,153 | 30 Apr 2026 |
| Bolt | 2.2M | 123,221 | 14 Sep 2026 |
| Cogent Security | 1.7M | 244 | 8 Oct 2026 |
| Lightfield | 1.3M | 6,784 | 9 Sep 2026 |
| Antioch | 939K | 1,727 | 9 Jun 2026 |
| Cresta | 849K | 1,845 | 23 Sep 2026 |
| Coinbase | 756K | 7,189,148 | 16 Jun 2026 |
| Vori | 645K | 3,141 | 6 May 2026 |
| LlamaIndex | 106K | 87,236 | 22 Oct 2026 |
| Coinbase Assets | 45K | 270,116 | 21 Oct 2026 |
| Baseten | 31K | 22,669 | 16 Sep 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 |
|---|---|---|---|
| Cogent Security | 1.7M | 244 | 6,764x |
| Lightfield | 1.3M | 6,784 | 199x |
| Antioch | 939K | 1,727 | 543x |
| Cresta | 849K | 1,845 | 460x |
| Vori | 645K | 3,141 | 205x |
Who Greylock invests alongside
The firms most often on the same cap tables, by number of shared portfolio companies in the directory.
| Firm | Shared companies |
|---|---|
| Greylock Capital Management, LLC | 6 of 11 |
| K5 Global | 4 of 11 |
| a16z | 4 of 11 |
| Spark Capital | 3 of 11 |
| Y Combinator | 3 of 11 |
| Tiger Global | 3 of 11 |
| Battery Ventures | 3 of 11 |
| Wellington Management | 3 of 11 |
| IVP | 3 of 11 |
| BoxGroup | 2 of 11 |
By category
| Category | Launches | Median views |
|---|---|---|
| Developer tools | 10 | 595K |
| Enterprise AI | 4 | 818K |
Greylock portfolio companies on X
| Company | Launches | Total views | Biggest launch |
|---|---|---|---|
| Builder.io | 3 | 22.1M | 22M30 Apr 2026 |
| Bolt | 7 | 7.5M | 2.2M14 Sep 2026 |
| Lightfield | 2 | 2.1M | 1.3M9 Sep 2026 |
| Cogent Security | 1 | 1.7M | 1.7M8 Oct 2026 |
| Cresta | 2 | 1.6M | 849K23 Sep 2026 |
| Antioch | 2 | 1.5M | 939K9 Jun 2026 |
| Coinbase | 1 | 756K | 756K16 Jun 2026 |
| Vori | 1 | 645K | 645K6 May 2026 |
| LlamaIndex | 1 | 106K | 106K22 Oct 2026 |
| Coinbase Assets | 1 | 45K | 45K21 Oct 2026 |
| Baseten | 2 | 35K | 31K16 Sep 2026 |
Questions
Which Greylock portfolio companies launch on X?
11 Greylock-backed companies have 23 launches in the Doomers launch directory. The biggest by total views are Builder.io, Bolt, Lightfield.
What was the biggest launch from a Greylock-backed company?
Builder.io, with 22M views on 30 Apr 2026.
How do Greylock-backed launches compare with other launches on X?
The median Greylock-backed launch did 787K views, against 602K across every launch we track. 26% passed a million views. By median views the portfolio ranks 13 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.