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RMFG
YC S21Fort Worth, US · Founded 2021 · 9 employees · 16 known investors
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RMFG provides custom sheet metal parts and assemblies manufactured in the United States, targeting product makers and manufacturers seeking domestic production alternatives. The company combines human expertise with proprietary software and hardware technology to offer faster turnaround and lower costs than comparable overseas manufacturing.
Also known as Slip Labs, Inc. · Diode · Reason Robotics · slip · Slip · slip, Slip, Diode, Reason Robotics
Founders & leadership· Y Combinator alumni (S21)
RMFG was founded in 2021 by Kenneth Cassel.
Investors · 16
How we know: Jude Gomila's portfolio page · Not right? Tell us
How we know: Very Serious Ventures's portfolio page · Y Combinator's founder network · Not right? Tell us
How we know: the Y Combinator directory · businessinsider.com · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: a partner's Signal profile · Not right? Tell us
How we know: businessinsider.com · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: businessinsider.com · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Funding
SEC filings, press & company announcements$9M disclosed across 2 rounds · 2025
- $4.5Mseed funding roundDec 2025
Y Combinator (lead), Day One Ventures, Soma Capital
Source ↗ - $4.5MPre-SeedDec 2025 · 3 sources
Day One Ventures, Soma Capital, Y Combinator
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Related companies · 5
Companies working in the same space as RMFG.
Legal entities · 1
corporate structureFrequently asked questions
- What does RMFG do?
- RMFG provides custom sheet metal parts and assemblies manufactured in the United States, targeting product makers and manufacturers seeking domestic production alternatives. The company combines human expertise with proprietary software and hardware technology to offer faster turnaround and lower costs than comparable overseas manufacturing.
- Who founded RMFG?
- RMFG was founded by Kenneth Cassel in 2021.
- Who are RMFG's investors?
- RMFG's investors include Jude Gomila, SHOR, Very Serious Ventures, Y Combinator, Andreessen Horowitz, Browder Capital, Day One Ventures, Harvard Management Company and 8 more.
- How much funding has RMFG raised?
- RMFG has disclosed $9M raised across 2 rounds.
- Where is RMFG headquartered?
- RMFG is headquartered in Fort Worth, US.