Rebulk
YC S25 · Active · AI-native software for managing rail and bulk operations.
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
 bywaysShared: logistics, yard, operationNot statedAI | AI | Not stated | EF2020 |
 Bland AIShared: phone callActiveAI | AI | Active | YCS23 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
 CofactrShared: supply chain, logistics, spreadsheetActiveOther | Other | Active | YCW22 |
 SpaceFlow Technologies, Inc.Shared: supply chain, logistics, nativeActiveAI | AI | Active | YCS26 |
 TrueNorthShared: phone call, logistics, paperActiveOther | Other | Active | YCW20 |
 FleetWorksShared: phone call, logistics, truckActiveAI | AI | Active | YCS23 |
 ReformShared: supply chain, logistics, managingActiveAI | AI | Active | YCW24 |
Also from S25 in AI
All of S25
Founders
- Warren Wijaya WangFounder/CEO
- Cole RobertsonFounder/CTO
About Rebulk
Rebulk builds AI-native software for rail, transload, and bulk operations. We help teams manage railcars and trucks, transloading, maintenance, yard switching, railcar tracking, bulk inventory, documents, customer reporting, and billing. Much of this work still runs on spreadsheets, paper tickets, phone calls, and disconnected legacy systems. That means teams spend too much time entering the same information twice, tracking down paperwork, figuring out where railcars and inventory are, and putting together reports by hand. Rebulk brings that work into modern software built around how each business actually operates. We’ve lived this problem, and we know how to build for it. Warren previously led product at a Series A supply chain software startup, where he worked closely with companies moving and managing bulk commodities. Cole was engineer #3 at Tropic, helping scale it from seed to Series B, and later led engineering at an AI startup. Rebulk runs operations at Venezia Transport, Usher Transport, Cicada Logistics, McDonald Farms, and TransloadX across transloading, rail maintenance, switching, railcar tracking, and bulk inventory.
- YC batch
- S25 · Summer 2025
- Status, per YC
- Active
- Category
- AI
- Team size
- 3
- Location
- Olathe, KS, USA
- Founded
- 2025
- Checked
- 31m ago
YC tags: Artificial Intelligence, Logistics, Supply Chain, Industrial
Rebulk: questions
Which YC batch was Rebulk in?
Rebulk was in Y Combinator's Summer 2025 batch (S25).
Is Rebulk still active?
Y Combinator lists Rebulk as active.
Who founded Rebulk?
Rebulk's founders, as listed on its YC page: Warren Wijaya Wang (Founder/CEO), Cole Robertson (Founder/CTO).
Where is Rebulk based?
Rebulk lists Olathe, KS, USA as its location on YC's directory.
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