Kei Kosugi

Kei Kosugi: Email & Phone Number

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Client Success Partner at Gartner|Yokohama, Kanagawa, Japan

Position:

Client Success Partner at Gartner

Location:

Yokohama, Kanagawa, Japan

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Last updated: 2026-04-06
Updated: 2026-04-06

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Work Experience 7 years

Client Success Partner at Gartner

Jan 2024 - Current

Customer Success at 株式会社DONUTS

Mar 2022 - Jan 2024

English Technical Support Engineer at Dell Technologies

Mar 2020 - Feb 2022

Technical Support Engineer at Dell Technologies

Apr 2019 - Mar 2020

Kei Kosugi started working in 2019, then the employee has changed 2 companies and 3 jobs. On average, Kei Kosugi works for one company for 1 year 9 months.

Education

文理学部 at 日本大学 - Nihon University

Frequently Asked Questions

What is Kei Kosugi's email address?

SignalHire found a verified business email address for Kei Kosugi: **@gtnr.it.

What is Kei Kosugi's phone number?

SignalHire found a verified phone number for Kei Kosugi: +81-***-***-5246.

How do I contact Kei Kosugi at Gartner?

You can reach Kei Kosugi 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 Kei Kosugi's professional background?

Kei Kosugi has 7 years of professional experience. They have held roles including Customer Success, English Technical Support Engineer, and Technical Support Engineer at companies such as 株式会社DONUTS, Dell Technologies, and Dell Technologies. Their education includes 文理学部 from 日本大学 - Nihon University.

Is Kei Kosugi's contact information up to date?

Yes. Kei Kosugi's SignalHire profile was last updated on 6 April 2026, reflecting their current position as Client Success Partner at Gartner in Stamford, CT, United States.

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