NYC Startup Funding Index Methodology

What This Index Covers

The NYC Startup Funding Index is the definitive public record of venture capital and startup funding activity in New York City. It tracks funding rounds raised by tech-enabled startups based, founded, and headquartered within the five boroughs of New York City.

The index is curated and maintained by the AlleyWatch Data Team, drawing on AlleyWatch's deep coverage of the New York City startup ecosystem.

Data Curation

Every round in the index is reviewed and qualified by the AlleyWatch Data Team. Coverage is assembled through continuous monitoring of the NYC startup ecosystem and reconciled against a single canonical dataset.

• Daily updates. New rounds are added to the index on an ongoing basis as they are identified and verified.
• Monthly reconciliation. At the close of each month, the Data Team conducts a full reconciliation pass to confirm coverage, resolve any round-level discrepancies, and finalize monthly totals.
• Historical coverage. Historical data is reconciled against the same standards and editorial judgment as current coverage, ensuring year-over-year comparability.

NYC Definition

The index includes companies based, founded, and headquartered in New York City proper — defined as the five boroughs of Manhattan, Brooklyn, Queens, the Bronx, and Staten Island. Companies with satellite offices in NYC but headquartered elsewhere are not included.

Scope: Tech-Enabled Startups

The index focuses on venture-backed tech-enabled startups. This reflects the historical focus of AlleyWatch's coverage and ensures the dataset represents the New York City tech and innovation economy.

What Is Included

• Equity venture rounds from pre-seed through late-stage growth
• Convertible notes and SAFEs where disclosed
• Rounds with participation from corporate venture arms alongside traditional venture investors
• Tech-enabled companies across NYC's full range of innovation sectors

What Is Excluded

• Strategic corporate rounds led entirely by a corporate acquirer or strategic investor
• Private equity buyouts and growth equity structured as PE transactions
• Real estate financing, lending businesses, and companies outside the tech-enabled scope (including biotech where it does not fit the broader NYC tech focus)
• Rounds where NYC headquarters cannot be confirmed
• Rounds with undisclosed amounts
• Government grants and non-equity awards

Stage Classification

When a funding round's stage is publicly disclosed — Seed, Series A, Series B, and so on — that classification is used as announced and displayed on the public site.

Where a round is announced without a stage label, it is displayed as Venture. The AlleyWatch Data Team applies an internal classification methodology for analytical purposes; this is used in aggregated reporting but is not displayed at the individual round level.

Deduplication

Because a single funding round may be reported multiple times across different sources, the index uses a deduplication system that scores potential duplicates across multiple dimensions — including company identity, round amount, announced date, and investor overlap.

High-confidence matches are merged into a single canonical round. Lower-confidence matches are reviewed by the AlleyWatch Data Team before being merged or retained as separate records.

Totals and Aggregates

Monthly, quarterly, and annual totals represent the sum of all active canonical rounds with a disclosed amount and a confirmed NYC headquarters, with announced dates falling within the period being reported. Rounds that are later revised or excluded are removed from totals retroactively to preserve dataset integrity.

Year-over-Year Comparisons

All year-over-year comparisons shown for the current calendar year are calendar-day matched. A figure shown as "vs 2025 YTD" compares the current year's activity through today's calendar date against the same period in the prior year — never against the full prior year. This ensures fair comparability as the current year unfolds.

For comparisons between completed calendar years, the index uses full-year totals.

Corrections and Updates

The AlleyWatch Data Team issues corrections as errors are identified. If you believe a round is missing, misreported, or should be excluded, please contact data@alleywatch.com.