Piston Group Raises $15.0M Series

Lumesa

Lumesa is an AI visual infrastructure platform that helps ecommerce brands generate, personalize, test, and deploy product visuals built to improve conversion, merchandising, and scale. We train on your brand's own DNA before a single image is produced, so the output looks like you took the shoot yourself. AI Fashion Models: Custom AI models built to your exact specs, age, body type, skin tone, styling, and more, so your catalog reflects who actually shops with you. Inclusive by design, no agency required. Brand-trained Visuals: On-model, product-only, and lifestyle imagery generated from your brand's own rules, styling standards, pose library, and photography guidelines, trained in before a single image goes out. Virtual Try-On: Shoppers see themselves in your products before they buy. Cast into a look, styled head to toe from your live catalog, with motion and fabric behavior true to your brand, then carried into your storefront, ads, and email. Content Multiplication: One product becomes every asset you need, PDP, social, email, and ads, without a separate shoot for each channel. Localized Visuals: The same product, adapted for different markets and audiences, so one catalog speaks to every region you sell into. Product-only Images: Clean, catalog-ready shots for every SKU, at the volume your catalog demands, without waiting on a studio calendar. Visual Analytics: We track which creative attributes drive conversion, styling, pose, model, background, and use that signal to improve every future output. Proof: a $1B+ multi-brand apparel holding company doubled production volume in six months with no samples and no shoots. A global luxury accessories holding company hit a 3% conversion lift, first in luxury retail at this scale. A heritage fashion brand's own marketing team didn't believe the imagery was AI. Website: lumesa.ai Contact: hi@lumesa.ai Founded: 2021 · New York

Darcy Solutions

Darcy Solutions is on a mission to put Geothermal Everywhere. Our innovative technology unlocks the immense heating and cooling power of groundwater, delivering unparalleled thermal capacity from a minimal physical footprint—a breakthrough for urban and space-constrained environments. We provide our clients with a comprehensive, end-to-end partnership. This begins with a detailed, site-specific geologic assessment and extends through turnkey project management, guiding each project from initial design to final system commissioning. Darcy Solutions offers a practical and powerful approach to decarbonize buildings and create a cleaner future.

Highstock

We are the leading AI platform for brands with unsold inventory to find trustworthy wholesale buyers.

Maven Robotics

Maven Robotics is building the world’s leading general-purpose AI robots.