Long Island
Metro area · United States
* Conversion rates are derived from current counts.
Largest rounds
Largest funding rounds in Long Island
A live treemap of the largest VC rounds. Each cell is one round into Long Island-headquartered companies, grouped by Dealroom sector.
Largest rounds in Long Island - 2026
VC investment
How much venture capital flows into Long Island
VC investment into Long Island-headquartered, VC-backed companies, broken down by round size, company location, sector and funding stage.
Academia
Long Island's academic flywheel
Companies founded by university alumni or spun out of research, plus the institutions producing the most founders tied to Long Island.
Location comparison
How Long Island stacks up
Compare Long Island with peers from the same country (United States) — switch between combined EV, EV growth, and a growth × size view. Expand the table for the full ranking.
Combined enterprise value of each ecosystem.
Top cities in United States ranked by combined EV. Long Island's row is highlighted (#12).
| # | Ecosystem | Combined EV | EV growth | Unicorns | VC invested | Tracked startups |
|---|---|---|---|---|---|---|
| 1 | Bay Area | $20T | 8.0× | 866 | $156B | 24.5K |
| 2 | Seattle | $2.9T | 4.4× | 68 | $6.6B | 2,966 |
| 3 | Austin | $2T | 13.9× | 62 | $8.1B | 2,649 |
| 4 | New York City | $1.6T | 5.1× | 329 | $32.3B | 16.6K |
| 5 | Boston | $1.2T | 4.5× | 211 | $13.4B | 6,323 |
| 6 | Los Angeles | $1.2T | 5.7× | 158 | $16.3B | 8,592 |
| 7 | Miami | $673B | 12.8× | 40 | $2.6B | 2,865 |
| 8 | San Diego | $330B | 5.1× | 64 | $3.4B | 2,224 |
| 9 | Chicago | $266B | 3.7× | 52 | $2.2B | 2,833 |
| 10 | Washington DC | $265B | 3.3× | 55 | $3.5B | 2,343 |
| 11 | Dallas | $203B | 3.8× | 35 | $1.6B | 2,033 |
| 51 | Long Island | $11.2B | 1.9× | 4 | $123.9M | 388 |
More data
Explore Dealroom data →Get the full Long Island ecosystem on Dealroom
Live company-by-company deal flow, full cap tables, founder pedigrees, hiring signals and revenue trajectories.