tech
February 5, 2026
Fundamental raises $255 million Series A with a new take on big data analysis
Fundamental has built a new foundation model to solve an old problem: how to draw insights from the huge quantities of structured data produced by enterprises.

TL;DR
- Fundamental, an AI lab, has emerged from stealth, offering a new foundation model called Nexus.
- Nexus is designed to analyze large quantities of structured enterprise data, an area where traditional LLMs struggle.
- The company raised $255 million in funding, including a $225 million Series A round led by Oak HC/FT, Valor Equity Partners, Battery Ventures, and Salesforce Ventures.
- Nexus is described as a Large Tabular Model (LTM), is deterministic, and does not use the transformer architecture.
- Fundamental aims to enable enterprises to analyze extremely large structured datasets more effectively.
- The company has secured seven-figure contracts with Fortune 100 clients and partnered with AWS for deployment.
- CEO Jeremy Fraenkel believes Nexus can offer better performance than traditional algorithms and data scientists for Big Data analysis.
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