John Grubbs

John Grubbs: Email & Phone Number

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Computer Numerical Control Machinist at Ultra Machining Company (UMC)|Minneapolis, Minnesota, United States

Position:

Computer Numerical Control Machinist at Ultra Machining Company (UMC)

Location:

Minneapolis, Minnesota, United States

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Last updated: 2026-05-15
Updated: 2026-05-15

Found email addresses for John Grubbs:

Business emails:
Personal emails:
g***@tesla.com

Found phones for John Grubbs:

+1-870-***-**82,
+1-323-***-**34
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Work Experience 20 years

Computer Numerical Control Machinist at Ultra Machining Company (UMC)

Oct 2020 - Current

Computer Numerical Control Programmer at Regal Machine Tool

Jan 2009 - Jan 2020

Prototype Specialist at Tesla

Aug 2006 - Jan 2009

John Grubbs started working in 2006, then the employee has changed 2 companies and 2 jobs. On average, John Grubbs works for one company for 6 years 4 months.

Their professional focus is 3D Computer Aided Design (3D CAD), Blueprint Reading, and CNC Mill across 3 core areas.

Education

Associate's degree at St. Paul's Co-educational College

Frequently Asked Questions

What is John Grubbs's email address?

SignalHire found verified email addresses for John Grubbs, both business and personal. Their business email is g********n@ultramc.com, and personal emails include g***@regalmachinetool.com, and g***@tesla.com.

What is John Grubbs's phone number?

SignalHire found multiple verified phone numbers for John Grubbs: +1-205-***-**56, +1-870-***-**82, and +1-323-***-**34.

How do I contact John Grubbs at Ultra Machining Company (UMC)?

You can reach John Grubbs through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is John Grubbs's professional background?

John Grubbs has 20 years of professional experience. They have held roles including Computer Numerical Control Programmer, and Prototype Specialist at companies such as Regal Machine Tool, and Tesla. Their education includes Associate's degree from St. Paul's Co-educational College.

Is John Grubbs's contact information up to date?

Yes. John Grubbs's SignalHire profile was last updated on 15 May 2026, reflecting their current position as Computer Numerical Control Machinist at Ultra Machining Company (UMC) in Monticello, MN, United States.

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