Sergey Onyshchenko: Email & Phone Number

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Commercial Director at Klinkmann Ukraine LLC|United States

Position:

Commercial Director at Klinkmann Ukraine LLC

Location:

United States

View Sergey Onyshchenko's Email

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Last updated: 2026-06-26

Updated: 2026-06-26

Found email addresses for Sergey Onyshchenko:

Business emails:

s****************o@siemens.com,

s****************o@klinkmann.com.ua

Personal emails:

s****6@ukr.net,

s********v@gmail.com

Found phones for Sergey Onyshchenko:

+380-68-***-**99,

+380-63-***-**95

A different Sergey Onyshchenko?

Work Experience 25 years

Commercial Director at Klinkmann Ukraine LLC

Apr 2021 - Current

Deputy Head of Division Industry Automation and Process Instruments at Ukrgasvydobuvannya

Oct 2016 - Apr 2021

Head of sales for work with VIP clients O&G,Chemical Industry, F&B at Siemens Ukraine

Aug 2013 - Sep 2016

Chief Project Engineer of the Commercial Department at Yokogawa

Jul 2012 - Aug 2013

Head of Key Accounts Department in O&G andChemical Industry at КСК-АВТОМАТИЗАЦИЯ

Dec 2001 - Jul 2012

Sergey Onyshchenko started working in 2001, then the employee has changed 4 companies and 4 jobs. On average, Sergey Onyshchenko works for one company for 4 years 11 months.

Sergey is proficient in Английский. Their professional focus is Автоматизация, Бизнес, and Бизнес-аналитика across 3 core areas.

Education

Master of Business Administration - MBA at Kyiv School of Economics

КТЖТ

УГУПТ

Frequently Asked Questions

What is Sergey Onyshchenko's email address?

SignalHire found verified email addresses for Sergey Onyshchenko, both business and personal. Their business email is s****************o@siemens.com, and personal emails include s****6@ukr.net, and s********v@gmail.com.

What is Sergey Onyshchenko's phone number?

SignalHire found multiple verified phone numbers for Sergey Onyshchenko: +380-68-***-**99, and +380-63-***-**95.

How do I contact Sergey Onyshchenko at Klinkmann Ukraine LLC?

You can reach Sergey Onyshchenko 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 Sergey Onyshchenko's professional background?

Sergey Onyshchenko has 25 years of professional experience. They have held roles including Deputy Head of Division Industry Automation and Process Instruments, Head of sales for work with VIP clients O&G,Chemical Industry, F&B, and Chief Project Engineer of the Commercial Department at companies such as Ukrgasvydobuvannya, Siemens Ukraine, and Yokogawa. Their education includes Master of Business Administration - MBA from Kyiv School of Economics, and КТЖТ.

Is Sergey Onyshchenko's contact information up to date?

Yes. Sergey Onyshchenko's SignalHire profile was last updated on 26 June 2026, reflecting their current position as Commercial Director at Klinkmann Ukraine LLC in Kyiv, Ukraine.

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