Jack Krattenmaker

Jack Krattenmaker: Email & Phone Number

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Sales Intern at Sentinel Group|Hopkinton, Massachusetts, United States

Position:

Sales Intern at Sentinel Group

Location:

Hopkinton, Massachusetts, United States

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Last updated: 2026-05-26
Updated: 2026-05-26

Found email addresses for Jack Krattenmaker:

Business emails:
Personal emails:
k***@hotmail.com

Found phones for Jack Krattenmaker:

+1-205-***-**25,
+1-205-***-**88,
+1-909-***-**87
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Work Experience 7 years

Sales Intern at Sentinel Group

Jun 2025 - Current

Valet Attendant at Oyster Harbors Club

May 2024 - Current

Partner at Popset

Sep 2024 - Dec 2024

Cart Attendant at Willowbend Club, Cape Cod

May 2019 - Aug 2023

Jack Krattenmaker started working in 2019, then the employee has changed 3 companies and 3 jobs. On average, Jack Krattenmaker works for one company for 1 year 11 months.

Their professional focus is Communication, Driving, and Hospitality across 3 core areas.

Education

Providence College

The London School of Economics and Political Science (LSE)

Belmont Hill School

Frequently Asked Questions

What is Jack Krattenmaker's email address?

SignalHire found verified email addresses for Jack Krattenmaker, both business and personal. Their business email is j**************r@sentinelgroup.com, and personal emails include j***@willowbendcapecod.com, and k***@hotmail.com.

What is Jack Krattenmaker's phone number?

SignalHire found multiple verified phone numbers for Jack Krattenmaker: +1-623-***-**44, +1-205-***-**25, and +1-205-***-**88.

How do I contact Jack Krattenmaker at Sentinel Group?

You can reach Jack Krattenmaker 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 Krattenmaker's professional background?

Jack Krattenmaker has 7 years of professional experience. They have held roles including Valet Attendant, Partner, and Cart Attendant at companies such as Oyster Harbors Club, Popset, and Willowbend Club, Cape Cod. Their education includes Providence College, and The London School of Economics and Political Science (LSE).

Is Jack Krattenmaker's contact information up to date?

Yes. Jack Krattenmaker's SignalHire profile was last updated on 26 May 2026, reflecting their current position as Sales Intern at Sentinel Group in Wakefield, MA, United States.

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