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John Costa Email & Phone Number

Staff Accountant at GXM CONSULTING

Location: Washington DC-Baltimore Area, United States, United States 7 work roles 2 schools

1 work email found @gxmconsulting.com 5 phones found area 301 and 202 LinkedIn matched

✓ Verified May 2026 4 data sources Profile completeness 100%

Current company

GXM CONSULTING

Role

Staff Accountant

Location

Washington DC-Baltimore Area, United States, United States

Company size

45 employees

Who is John Costa? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

John Costa is listed as Staff Accountant at GXM CONSULTING, a company with 45 employees, based in Washington DC-Baltimore Area, United States, United States. AeroLeads shows a work email signal at gxmconsulting.com, phone signal with area code 301, 202, and a matched LinkedIn profile for John Costa.

John Costa previously worked as Bookkeeper at Self Employed and Operations & Membership Assistan at Society For Personality And Social Psychology (Spsp). John Costa holds Mba from Antioch University New England.

Company email context

Email format at GXM CONSULTING

This section adds company-level context without repeating John Costa's masked contact details.

{last}@gxmconsulting.com

89% confidence

AeroLeads found 1 current-domain work email signal for John Costa. Compare company email patterns before reaching out.

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Profile bio

About John Costa

Experienced bookkeeper and consultant with a demonstrated history of working in the public, nonprofit, and small business sectors. Strong analytical skills with experience in accounts payable, accounts receivable, bank reconciliation, preparing financial statements, client invoicing, payroll management, and human resources management.

Listed skills include Account Management, Budget Management, Financial Analysis, Project Management, and 20 others.

Current workplace

John Costa's current company

Company context helps verify the profile and gives searchers a useful next step.

Gxm Consulting

Staff Accountant

arlington, virginia, united states

Website

gxmconsulting.com

Employees

45

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Company profile

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7 roles

John Costa work experience

A career timeline built from the work history available for this profile.

Staff Accountant

Current

Gxm Consulting

Arlington, Virginia, United States

Oct 2020 - Present

Bookkeeper

Current

Self Employed

Washington, District Of Columbia, United States

Aug 2010 - Present

Operations & Membership Assistan

Society For Personality And Social Psychology (Spsp)

Washington, District Of Columbia, United States

Apr 2016 - Jul 2017

Operations Manager

Compost Cab

Washington, District Of Columbia, United States

Jul 2013 - Jan 2015

Realty Specialist

General Services Administration

Washington, District Of Columbia, United States

Jun 2005 - Dec 2009

Management Intern

Gsa

Washington, District Of Columbia, United States

Feb 2003 - Feb 2006

Financial Analyst Trainee

Gsa

Washington, District Of Columbia, United States

Jun 2002 - Feb 2003

Team & coworkers

Colleagues at GXM CONSULTING

Other employees you can reach at gxmconsulting.com. View company contacts for 45 employees →

Michael Savchuk Colleague at Gxm Consulting Washington DC-Baltimore Area, United States View → HT

Hadeel Tester Colleague at Gxm Consulting Washington DC-Baltimore Area, United States View → DW

Dylan W. Hares Colleague at Gxm Consulting Falls Church, Virginia, United States, United States View → EB

Ernie Bryant Colleague at Gxm Consulting Wayne County, West Virginia, United States, United States View → BH

Brooke Huntington Colleague at Gxm Consulting Gig Harbor, Washington, United States, United States View → DS

Dana S. Colleague at Gxm Consulting Hanover, Maryland, United States, United States View → TS

Tyler Schwend Colleague at Gxm Consulting Powhatan, Virginia, United States, United States View → FP

Frank Poulin Colleague at Gxm Consulting Sterling, Virginia, United States, United States View → PB

Parakh B. Colleague at Gxm Consulting Chantilly, Virginia, United States, United States View → NM

Nancy Metzer Colleague at Gxm Consulting Chantilly, Virginia, United States, United States View →

2 education records

John Costa education

Mba

Antioch University New England

Bba

The George Washington University School Of Business

FAQ

Frequently asked questions about John Costa

Quick answers generated from the profile data available on this page.

What company does John Costa work for?

John Costa works for GXM CONSULTING.

What is John Costa's role at GXM CONSULTING?

John Costa is listed as Staff Accountant at GXM CONSULTING.

What is John Costa's email address?

AeroLeads has found 1 work email signal at @gxmconsulting.com for John Costa at GXM CONSULTING.

What is John Costa's phone number?

AeroLeads has found 5 phone signal(s) with area code 301, 202 for John Costa at GXM CONSULTING.

Where is John Costa based?

John Costa is based in Washington DC-Baltimore Area, United States, United States while working with GXM CONSULTING.

What companies has John Costa worked for?

John Costa has worked for Gxm Consulting, Self Employed, Society For Personality And Social Psychology (Spsp), Compost Cab, and General Services Administration.

Who are John Costa's colleagues at GXM CONSULTING?

John Costa's colleagues at GXM CONSULTING include Michael Savchuk, Hadeel Tester, Dylan W. Hares, Ernie Bryant, and Brooke Huntington.

How can I contact John Costa?

You can use AeroLeads to view verified contact signals for John Costa at GXM CONSULTING, including work email, phone, and LinkedIn data when available.

What schools did John Costa attend?

John Costa holds Mba from Antioch University New England.

What skills is John Costa known for?

John Costa is listed with skills including Account Management, Budget Management, Financial Analysis, Project Management, Research, Budding Naturalist, Farmer, and Nonprofits.

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