Long Island
Metro area · United States · Pop. 2.9M · WithinWorldNorth AmericaUnited StatesNew York StateLong Island
Startup funnel
Long Island's startup funnel
Companies headquartered in Long Island at each stage today, by total VC raised. Hover or tap a bar for the split.
Source: Dealroom.co
Quarterly report
Long Island's latest quarter in venture capital
Venture capital raised by Long Island-headquartered companies each quarter since 2020, split by round size, with detail on the latest complete quarter.
Latest complete quarter
Loading VC raised by Long Island-headquartered companies…
Enterprise value
How much Long Island’s VC-backed companies are worth
Combined enterprise value of VC-backed companies headquartered in Long Island, founded since 1990 and still operating, at the end of each year. Companies stay in the total after they list or are acquired.
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.
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
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 | $20.1T | 8.0× | 895 | $158B | 24.9K |
| 2 | Seattle | $2.9T | 4.5× | 71 | $6.9B | 2,994 |
| 3 | Austin | $2T | 13.7× | 63 | $7.9B | 2,749 |
| 4 | Los Angeles | $1.6T | 7.7× | 166 | $17.6B | 8,766 |
| 5 | New York City | $1.5T | 5.0× | 326 | $32B | 16.8K |
| 6 | Boston | $1.2T | 4.4× | 211 | $13B | 6,417 |
| 7 | Miami | $684B | 11.9× | 43 | $3B | 2,981 |
| 8 | San Diego | $327B | 5.0× | 64 | $3.4B | 2,252 |
| 9 | Washington DC | $285B | 3.4× | 63 | $4.1B | 2,583 |
| 10 | Chicago | $263B | 3.7× | 54 | $2.3B | 2,855 |
| 11 | Dallas | $225B | 4.1× | 48 | $2.1B | 2,088 |
| 51 | Long Island | $10.8B | 1.9× | 4 | $50.1M | 398 |
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.