John Sinclair: Email & Phone Number

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Document Control and Calibration Lead at Komatsu|Longview, Texas, United States

Position:

Document Control and Calibration Lead at Komatsu

Location:

Longview, Texas, United States

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Last updated: 2026-06-18

Updated: 2026-06-18

Found email addresses for John Sinclair:

Business emails:

j*******r@letourneautechnologies.com,

j*******r@komatsu.com.au

Personal emails:

s*********t@hotmail.com

Found phones for John Sinclair:

+1-909-***-**91,

+1-520-***-**68,

+1-480-***-**43,

+1-480-***-**96

A different John Sinclair?

Work Experience

Document Control and Calibration Lead at Komatsu

Sep 2023 - Current

Head Of Laboratory at Nucor Steel Longview LLC

Jun 2020 - Sep 2023

UT/QC Inspector at LeTourneau Technologies

- Dec 2021

John Sinclair started working in 2020, then the employee has changed 2 companies and 2 jobs. On average, John Sinclair works for one company for 3 years 1 month.

Their professional focus is Analytical Skills, Data Analysis, and Laboratory Technicians across 3 core areas.

Frequently Asked Questions

What is John Sinclair's email address?

SignalHire found verified email addresses for John Sinclair, both business and personal. Their business email is j*******r@letourneautechnologies.com, and personal emails include s*********t@hotmail.com.

What is John Sinclair's phone number?

SignalHire found multiple verified phone numbers for John Sinclair: +1-909-***-**91, +1-520-***-**68, and +1-480-***-**43.

How do I contact John Sinclair at Komatsu?

You can reach John Sinclair 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 Sinclair's professional background?

They have held roles including Head Of Laboratory, and UT/QC Inspector at companies such as Nucor Steel Longview LLC, and LeTourneau Technologies.

Is John Sinclair's contact information up to date?

Yes. John Sinclair's SignalHire profile was last updated on 18 June 2026, reflecting their current position as Document Control and Calibration Lead at Komatsu.

John Sinclair Namesakes

Name

Company

Position

John Sinclair

Stinson LLP

Associate

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John Sinclair

Minetek

Production Manager

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John Sinclair

IPC International

Director

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