Time-series databases for ML.

Time-series databases optimized for ML feature workloads, not just monitoring.

Team-sized buildTrickle — one deal per quarter

Why now

ML workloads need time-series features differently than monitoring. The slot between Influx and Snowflake is open.

Repos with Parquet / Arrow support, ML-aware aggregations, and Python / TS SDKs.

We name publicprojects + categories only — never founders we track inside the paid product. The buyer’s edge stays inside the product.

A Postgres table with a timestamp index + slow queries.

Hard build. Fund only with prior database team. The wedge is a specific ML workload (financial, IoT, observability).

Vector database engines — Vector search engines optimized for specific workloads — high-dimensional, hybrid, or local.
Real-time feature stores — Feature stores with sub-second freshness for online ML.
Postgres extension marketplaces — Postgres is now the AI database. The extension ecosystem is the next platform.
Columnar warehouse alternatives — Snowflake / BigQuery alternatives optimized for a specific shape — cheap, fast, or open.

Data Infrastructure · sub-niche

Time-series databases optimized for ML feature workloads, not just monitoring.

Team-sized buildTrickle — one deal per quarter

ML workloads need time-series features differently than monitoring. The slot between Influx and Snowflake is open.

Repos with Parquet / Arrow support, ML-aware aggregations, and Python / TS SDKs.

We name publicprojects + categories only — never founders we track inside the paid product. The buyer’s edge stays inside the product.

A Postgres table with a timestamp index + slow queries.

Hard build. Fund only with prior database team. The wedge is a specific ML workload (financial, IoT, observability).

Vector database engines — Vector search engines optimized for specific workloads — high-dimensional, hybrid, or local.
Real-time feature stores — Feature stores with sub-second freshness for online ML.
Postgres extension marketplaces — Postgres is now the AI database. The extension ecosystem is the next platform.
Columnar warehouse alternatives — Snowflake / BigQuery alternatives optimized for a specific shape — cheap, fast, or open.