Xometry , a company that operates an AI-powered marketplace for custom manufacturing, reported record first-quarter 2026 revenue of $205 million, up 36% from $151 million a year earlier. Marketplace revenue rose 40% year over year to $191.3 million, while gross profit increased 39% to $78.5 million. Adjusted EBITDA reached $10.5 million, improving by $10.4 million from the first quarter of 2025. The company also announced a strategic partnership with Siemens , an industrial technology company, to embed its manufacturability, pricing, sourcing, and execution intelligence into Siemens Xcelerator . Siemens is also purchasing approximately $50 million of Class A common stock. First-quarter results show that most of the growth came from the marketplace business. Marketplace gross profit rose 53% year over year to $66.4 million, while marketplace gross margin increased from 31.8% to 34.7%. Active buyers reached 85,581 as of March 31, 2026, up 20% from 71,454 a year earlier.…