Velum Labs
An operating system for data quality across any stack. Velum watches real query traffic to automatically derive data contracts, trace lineage end to end, and enforce integrity through pull requests - no manual rules and no migration. It connects to Snowflake, BigQuery, dbt, Databricks, Looker, Postgres, Kafka and more. YC 2026.
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Our take
An operating system for data quality across any stack. Velum watches real query traffic to automatically derive data contracts, trace lineage end to end, and enforce integrity through pull requests - no manual rules, no migration. Connects to Snowflake, BigQuery, dbt, Databricks, Looker, Postgres and Kafka so bad data never reaches dashboards. YC 2026.
Best for
Data platform teams with multi-tool stacks who want quality enforced without writing rules by hand.
Pros
- Auto-derives contracts from real query traffic
- Enforces quality via pull requests
- Traces lineage across any stack
- No manual rules or migration to adopt
Cons
- Early-stage company
- Aimed at larger multi-team data stacks
- Pricing isn't public
How it compares
Versus rule-based data-quality tools, Velum learns semantic definitions from how data is actually queried and enforces them in code review rather than asking teams to maintain checks.
Full review
Velum is an operating system for data quality. It automatically monitors and enforces quality across a company's data stack so bad data never reaches dashboards, observing real data traffic to derive contracts, trace lineage and enforce integrity from ingestion all the way to executive reporting.
Rather than asking teams to write and maintain rules, Velum observes query traffic, learns semantic definitions, and enforces them through pull requests, with no migration required. It integrates with Snowflake, BigQuery, dbt, Looker, Databricks, Redshift, Postgres, Kafka, Fivetran and Airflow, and is part of Y Combinator's 2026 batch.
Cloudkart Trust Graph
3.6/5- Actual Utility4/5
Source: Initial LLM-authored rubric (backfill)
- Ease of Use4/5
Source: Initial LLM-authored rubric (backfill)
- Pricing Fairness3/5
Source: Initial LLM-authored rubric (backfill)
- Reliability3/5
Source: Initial LLM-authored rubric (backfill)
- Differentiation4/5
Source: Initial LLM-authored rubric (backfill)
Scored as of . Each score is versioned and auditable; vendors cannot buy it.
How this score is set
- Editorial rubric
- Primary signal — five dimensions, 3.6/5 average.
- Community reviews
- None yet.
- Pricing verified
- Not yet verified
- Independence
- Score set by our editorial team before any affiliate relationship is considered. No vendor can buy it.
Frequently asked questions
- Is Velum Labs free, and how much does it cost?
- Velum Labs is a paid tool.
- Who is Velum Labs best for?
- Data platform teams with multi-tool stacks who want quality enforced without writing rules by hand.
- How is Velum Labs rated on Cloudkart.ai?
- Velum Labs scores 3.6 out of 5 on the Cloudkart.ai rubric, which weighs actual utility, ease of use, pricing fairness, reliability and differentiation. Scores are set editorially and can never be bought.
Community reviews
No community reviews yet. Be the first to share how Velum Labs works for you.
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