David: Email & Phone Number

Customer Service Rep/ Executive Officer Asst. / Document Control Specialist at LIONEL HENDERSON, INC.|Gaithersburg, Maryland, United States

Position:

Customer Service Rep/ Executive Officer Asst. / Document Control Specialist at LIONEL HENDERSON, INC.

Location:

Gaithersburg, Maryland, United States

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Last updated: 2025-08-06

Updated: 2025-08-06

Found email addresses for David:

Business emails:

**@lionelhenderson.com

Personal emails:

****@csg-llcusa.com,

****@aol.com,

****@gmail.com,

****@boozallen.co

Found phones for David:

+1-480-***-**04,

+1-623-***-**55

A different David?

Work Experience

Customer Service Rep/ Executive Officer Asst. / Document Control Specialist at LIONEL HENDERSON, INC.

Nov 2024 - Current

Executive Officer at Consulting Services Group, LLC

- Jun 2025

Customer Service Representative at FEMA

Jan 2024 - Jun 2025

Executive Assistant to Chief Operations Officer at Open for Work

Sep 2020 - Jun 2023

Executive Officer at Consulting Services Group (CSG)

Jan 2019 - Jan 2022

Intelligence Analyst at Leidos Corp. (formerly SAIC)

Jan 2004 - Jan 2019

Program Manager at Booz Allen Hamilton

Jan 2002 - Jan 2004

David started working in 2002, then the employee has changed 6 companies and 5 jobs. On average, David works for one company for 4 years 4 months.

Their professional focus is Active Listening, Administration, and Analytical Skills across 3 core areas.

Education

High School Diploma at Northeast Catholic High School

Some College at University of Phoenix

Frequently Asked Questions

What is David's email address?

SignalHire found verified email addresses for David, both business and personal. Their business email is **@lionelhenderson.com, and personal emails include ****@csg-llcusa.com, ****@aol.com, and ****@gmail.com.

What is David's phone number?

SignalHire found multiple verified phone numbers for David: +1-480-***-**04, and +1-623-***-**55.

How do I contact David at LIONEL HENDERSON, INC.?

You can reach David 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 David's professional background?

They have held roles including Executive Officer, Customer Service Representative, and Executive Assistant to Chief Operations Officer at companies such as Consulting Services Group, LLC, FEMA, and Open for Work. Their education includes High School Diploma from Northeast Catholic High School, and Some College from University of Phoenix.

Is David's contact information up to date?

Yes. David's SignalHire profile was last updated on 6 August 2025, reflecting their current position as Customer Service Rep/ Executive Officer Asst. / Document Control Specialist at LIONEL HENDERSON, INC. in Hyattsville, Maryland, United States.

David Namesakes

Name

Company

Position

David

GRIPHCON TECH

Customer Service Specialist

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David

Excelsior Painting & Siding

Owner

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David

Microsoft

Ingeniero superior de sistemas

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Other employees at LIONEL HENDERSON, INC.

Name

Company

Position

Destyna McCoy

LIONEL HENDERSON, INC.

Customer Service Representative

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Donnie Greene

LIONEL HENDERSON, INC.

Team Lead

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Veronica Robinson

LIONEL HENDERSON, INC.

Program Manager

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Nancy Hennessy

LIONEL HENDERSON, INC.

Management Assistant

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Greg Miller

LIONEL HENDERSON, INC.

Project Manager

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