Jack Holthe: Email & Phone Number

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Industrial Manufacturing Engineer at Iowa Rotocast Plastics, Inc.|Decorah, Iowa, United States

Position:

Industrial Manufacturing Engineer at Iowa Rotocast Plastics, Inc.

Location:

Decorah, Iowa, United States

View Jack Holthe's Email

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Last updated: 2026-09-11

Updated: 2026-09-11

Found email addresses for Jack Holthe:

Business emails:

j*********e@irpinc.com,

j***h@irpinc.com

Personal emails:

h***@gmail.com,

h***@grizzlycoolers.com

Found phones for Jack Holthe:

+1-323-***-**41,

+1-520-***-**51,

+1-520-***-**91,

+1-870-***-**93

A different Jack Holthe?

Work Experience 3 years

Industrial Manufacturing Engineer at Iowa Rotocast Plastics, Inc.

Aug 2025 - Current

Bow Technician at ANTHEM ARCHERY, LLC

Sep 2024 - Current

Design Engineer at Iowa Rotocast Plastics, Inc.

Jan 2023 - Aug 2025

Design Engineer at GRIZZLY COOLERS

Jan 2023 - Aug 2025

Jack Holthe started working in 2023, then the employee has changed 2 companies and 2 jobs. On average, Jack Holthe works for one company for 2 years 1 month.

Their professional focus is 3D Printing, Computer-Aided Design (CAD), and Engineering across 3 core areas.

Education

Bachelor of Science at University of Wisconsin-Platteville

Frequently Asked Questions

What is Jack Holthe's email address?

SignalHire found verified email addresses for Jack Holthe, both business and personal. Their business email is j*********e@irpinc.com, and personal emails include h***@gmail.com, and h***@grizzlycoolers.com.

What is Jack Holthe's phone number?

SignalHire found multiple verified phone numbers for Jack Holthe: +1-323-***-**41, +1-520-***-**51, and +1-520-***-**91.

How do I contact Jack Holthe at Iowa Rotocast Plastics, Inc.?

You can reach Jack Holthe 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 Jack Holthe's professional background?

Jack Holthe has 3 years of professional experience. They have held roles including Bow Technician, Design Engineer, and Design Engineer at companies such as ANTHEM ARCHERY, LLC, Iowa Rotocast Plastics, Inc., and GRIZZLY COOLERS. Their education includes Bachelor of Science from University of Wisconsin-Platteville.

Is Jack Holthe's contact information up to date?

Yes. Jack Holthe's SignalHire profile was last updated on 11 September 2026, reflecting their current position as Industrial Manufacturing Engineer at Iowa Rotocast Plastics, Inc. in Decorah, IA, United States.

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