# TAR

> Austin off-grid power systems for AI data centers — $120M Series A at about $1B led by Spark Capital; no disclosed revenue or named customers in the September print.

## Why it is interesting

September 10, 2026: Bloomberg said TAR raised a $120 million Series A led by Spark Capital at about $1 billion. That is roughly 2× the $500 million seed mark Leonhard Soenke told Business Insider in June, three months after a $27 million seed Forbes reported as exclusive. The Series A statement did not print revenue, a named offtaker, or whether the June 20 MW neocloud delivery landed.

## Profile

- **Latest funding:** Series A — $120M (September 2026)
- **Latest known valuation:** ~$1B (Bloomberg) (September 2026)
- **Total disclosed equity funding:** $147M
- **Stage:** series-a
- **Status:** private
- **Industries:** N/A
- **Coverage:** full
- **Last updated:** 2026-09-11
- **Latest funding investors:** Spark Capital, Buckley Ventures, Align Fund

## Key facts

- Sep 10, 2026: $120M Series A at about $1B; Spark Capital led (Bloomberg, company statement)
- Returning: Buckley Ventures, Align Fund (Bloomberg).
- June 2026: $27M seed (Forbes exclusive). $500M seed mark is Business Insider / Soenke, undisclosed strategic
- No ARR, named customer, or 20 MW delivery confirmation in the Series A print
- Spark also backs Anthropic and co-led Stoke Space’s ~$1B Series E the same week — that is not a TAR offtake

## Funding history

- Series A · $120M · September 2026
  Source: Https://www.bloomberg.com/news/articles/2026-09-10/anthropic-investor-leads-funding-for-off-grid-ai-power-startup
- Seed · $27M · June 2026
  Source: Https://www.forbes.com/sites/johnkoetsier/2026/06/15/startup-raises-27-million-to-solve-two-massive-data-center-problems/

## Related articles

- https://venturecapitaltracker.com/2026-tar-120m-series-a-1b-spark-off-grid-power
- https://venturecapitaltracker.com/2026-september-10-11-investment-news-tar-pinegrove
- https://venturecapitaltracker.com/2026-september-vc-news

**By:** [Venture Capital Tracker](https://venturecapitaltracker.com/editorial-policy)
**Last updated:** September 11, 2026

**Editorial note:** AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.

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Source: https://venturecapitaltracker.com/startup/tar