NationGraph, the AI-native intelligence platform for businesses selling to the government, announced $18 million in Series A funding led by Menlo Ventures, with participation from Perplexity's Fund, XYZ Venture Capital, Reach Capital, and angel investors. The round, which closed in Q4 2025, brings the company's total funding to $22.5 million.

The company raised a $4.5 million seed round led by XYZ Venture Capital in August 2024, with participation from Reach Capital and other strategic angel investors.