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Rebulk

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Accurately measure and monitor bulk inventory

Summer 2025Founded 20253 peopleOlathe, KS, USA

About

Rebulk accurately measures and monitors bulk inventory like piles of feed, sand, and other assets that do not fit into boxes and barcodes using cameras, LiDAR, and computer vision. Most bulk inventory is still managed with rough estimates, manual checks, delayed updates, and too much guesswork. Because it lives in piles, bays, yards, and truck beds instead of boxes with barcodes, it is much harder to track accurately. When teams do not know what is actually on site, it leads to shrink, stockouts, bad planning, and unnecessary fire drills. We’ve lived this problem, and we know how to solve it. Warren saw it firsthand as a Product Manager at Milk Moovement, a $20M Series A AgTech startup, working closely with feed suppliers and farm managers. Cole was engineer #3 at Tropic, scaling it from seed to Series B, and later led engineering at an AI startup. We’ve built an integrated hardware and software platform and is working with one of the largest agricultural company in North America and Charm Industrial. As industries demand real-time visibility into the physical world, RebuIk is positioned to become the operating system for bulk assets from inventory tracking to procurement and logistics.

Founders · 2

Warren Wijaya Wang
Warren Wijaya WangFounder

Co-Founder and CEO of Rebulk. Previously led product at Milk Moovement, a Series A ag supply chain startup powering the transport of 45% of California’s dairy and 20% nationwide. Before that, he was an Investor at Dynamo Ventures, backing early-stage industrial startups. He also worked in Strategy & Operations at Chick-fil-A Corporate, where he launched autonomous ground robot and drone delivery programs.

Cole Robertson
Cole RobertsonFounder

Co-Founder and CTO of Rebulk. Previously Head of Engineering at Chipp, an AI startup, and engineer #3 at Tropic, where he helped scale the company from seed to Series B. Earlier experience includes developing aviation products at Garmin. Also built a SaaS consulting business focused on MVP development, generating $300K in just over a year.

Launch

Launched on Y Combinator · Jul 2025
View launch post ↗

We turn your bulk inventory into accurate 3D visualizations so you know exactly what’s on the ground and what's happening to it

Rebulk builds drone- and camera-cased 3D reconstructions of bulk inventory to determine exact volume and weight on the ground, indoors or outdoors, and integrates the data with customers’ systems to inform logistics and accounting. The product targets agriculture, mining, and construction sectors dealing with bulk materials, with a first customer already on board.

Formerly dScribe AI

B2BSupply Chain and LogisticsComputer VisionSupply ChainAgricultureAIIndustrial

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