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RMFG

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RMFG

Advanced Contract MFG for fast moving hardware companies

rmfg.com
HQ: Fort Worth, TX, USA
1-10
Industrials

Company research

Public company, workplace, funding, and market signals

Updated Jul 29, 2026

Overview

RMFG is a Fort Worth, Texas-based custom sheet metal fabrication company that combines a domestic factory with an API-first software layer to quote, manufacture, and ship metal parts and welded assemblies quickly for hardware and robotics customers.

Primary product

Instant-quote custom sheet metal fabrication and welded assemblies (including laser-cut parts, bent parts, welded assemblies, PEM hardware, and tapped parts)

Founded

2024

Headquarters

7449 E Lancaster Ave, Fort Worth, TX 76112, United States

Team size

1-10

Work style

Onsite

Industry

Manufacturing

Sub-industry

Custom sheet metal fabrication / contract manufacturing

Offices

7449 E Lancaster Ave, Fort Worth, TX 76112
Fort Worth, Texas, United States

Business model

B2B contract manufacturing
Manufacturing-as-a-service
Direct online ordering and quoting
API-first dropship fulfillment
Shopify/app-based manufacturing integration

Funding

Stage

pre-seed

Total raised

$4.6M

Latest round

Pre-Seed · Dec 2025

Latest amount

$4.5M

Pre-Seed

Dec 2025 · Y Combinator

$4.5M

Seed / convertible note

Sep 2021 · Y Combinator

$125K

People & investors

Leadership

Kenneth Cassel

Founder & CEO

Investors

Balaji Srinivasan
Charlie Songhurst
Day One Ventures
Joshua Browder
Patrick Collison
Soma Capital
Y Combinator

Work & culture

Lean, high-velocity, hands-on manufacturing culture focused on automation, fast turnaround, and direct customer service; public hiring signals emphasize on-site execution and strong technical ownership.

Work style

Onsite

Compensation

A public Founding Automation Engineer posting listed $80K-$135K base pay plus 0.25%-3.00% equity for a full-time on-site role in Fort Worth. No broader public benefits package was found.

Product & market

Pricing

Instant online pricing / quote-based pricing with no minimum order quantities; wholesale production pricing is locked at order time and shipping is handled separately for dropship/API orders.

Differentiators

  • —US-based factory in Fort Worth
  • —Instant pricing with no minimum order quantities
  • —Fast lead times starting around 2 days
  • —API-first ordering and fulfillment
  • —Automation/AI-driven quoting, DFM, scheduling, and machine control
  • —Strong fit for robotics and advanced hardware teams
  • —Direct ship / dropship API and Shopify integration

Technology

API-first internal platform
AI agents
Computer vision models
Custom software
Shopify app integration
HMAC-SHA256 API authentication
Slack Connect support
Open CASCADE (OCCT)
libdxfrw
Automated quoting / DFM / scheduling / machine control

Customers

Fast-moving hardware startups
Robotics companies
Advanced hardware companies
Durin
Rainmaker
Nimble
Hundreds of startup customers

Competitors

SendCutSend
Xometry
Fictiv
Protolabs
OSH Cut
Alpha Manufacturing
Pinnacle Precision Sheet Metal
J&E Companies
FC Laser
EPMP

Scale & contact

Estimated revenue

$250K-$500K estimated annual revenue

support@rmfg.com

Latest news

RMFG Secures $4.5 Million Seed Funding to Revolutionize U.S. Manufacturing with AI-Powered Factories

VC Tavern · Jan 2026

Covers RMFG's pre-seed financing, the use of proceeds for automation and AI engineering, and the company's plans to expand its services.

A father of four raised $4.5 million to help fuel the US manufacturing 'renaissance' with AI

North American Exec · Dec 2025

A repost/summary of the RMFG funding story that adds context on the company's manufacturing thesis, customer base, and pitch deck positioning.

Texas Father of Four Raised $4.5M for AI Manufacturing Startup RMFG

Business Insider · Dec 2025

Reports RMFG raised $4.5M, says the company shipped 100,000+ parts to about 200 customers, and details its AI-driven factory approach and investor group.

#30 - Sheet Metal | Kenneth Cassel, CEO RMFG

Relentless (YouTube interview) · Jul 2025

Founder interview covering RMFG's origin story, early customers from Twitter, pivot into sheet metal, and the company's software/hardware approach to manufacturing.

AboutAPI docsBlogDevelopers / API-first pageGitHub organizationHomepageLinkedIn company pageSupport docsY Combinator company profileY Combinator jobs
SourcesRMFG homepageRMFG about pageRMFG developers pageRMFG support docsRMFG API docsRMFG blogRMFG shipping policyRMFG LinkedIn company pageKenneth Cassel LinkedIn profileRMFG GitHub organizationRMFG Y Combinator profileRMFG Y Combinator jobsCB Insights RMFG profileCB Insights RMFG financialsGetLatka RMFG profileBusiness Insider RMFG funding article

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