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Matt Osiecki Email & Phone Number

Accounting Manager at GATX
Location: Greater Chicago Area, United States 10 work roles 5 schools
2 work emails found @gatx.com 3 phones found area 847, 630, and 656 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 2 work emails · 3 phones

Work email m****@gatx.com
Direct phone (847) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Accounting Manager
Location
Greater Chicago Area, United States
Company size

Who is Matt Osiecki? Overview

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Quick answer

Matt Osiecki is listed as Accounting Manager at GATX, a with 899 employees, based in Greater Chicago Area, United States. AeroLeads shows a work email signal at gatx.com, phone signal with area code 847, 630, 656, and a matched LinkedIn profile for Matt Osiecki.

Matt Osiecki previously worked as Fixed Asset Senior Accountant at Gatx and Fixed Asset Accountant at Gatx. Matt Osiecki holds Graduate, Business Administration from Northern Illinois University - College Of Business.

Company email context

Email format at GATX

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mosiecki@gatx.com
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AeroLeads found 2 current-domain work email signals for Matt Osiecki. Compare company email patterns before reaching out.

Profile bio

About Matt Osiecki

Matt Osiecki is a Accounting Manager at GATX. He possess expertise in microsoft excel, powerpoint, marketing, accounting, payroll and 10 more skills. He is proficient in English.

Listed skills include Microsoft Excel, Powerpoint, Marketing, Accounting, and 11 others.

Current workplace

Matt Osiecki's current company

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GATX
Gatx
Accounting Manager
Chicago, IL, US
Website
Employees
899
AeroLeads page
10 roles

Matt Osiecki work experience

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

Accounting Manager

Chicago, Il, Us

Fixed Asset Senior Accountant

Chicago, Illinois, United States

Fixed Asset Accountant

Chicago, Illinois

Jul 2019 - Mar 2022

Senior Accountant

Chicago, Il

Tasked with reviewing associate work • Monthly AVID (expense) accrual• Journal entries• Monthly Real Estate Tax workbooks • Weekly tenant review• Monthly move outs• Year-end settlements• Future year prepayments• Management fees for GLP's entire portfolio of properties• Daily budget journal entries for capital jobs• Overview of all Associate Fixed Assets Tasks• Created monthly Fixed Assets accrual entry for new properties yet to be valuated• Maintained and reviewed the Year to Date Intercompany File

Aug 2016 - Jun 2019

Associate Accountant

Chicago, Il

Responsible for the accounting of a portfolio of 115+ Business Units• Facilitate a working relationship with the property managers overseeing these properties• Review new lease information each week• Create mid-year move out packages for tenants leaving• Reconcile monthly real estate tax workbook and created journal entries for properties• Prepare journal entries for any necessary reclasses or accruals• Create year-end settlements and future year prepayments for each tenant• Respond to questions or audits; make changes to statements if necessary• Prepared the monthly utility accrual for the entire GLP portfolio• Created the monthly AVID (expense) accrual for the entire GLP portfolio• Work with the company’s intercompany reconciliation • Create the monthly intercompany file and update it throughout the month • Research journal entries that created intercompany to determine if an entry should be funded• Responsible for all monthly fixed asset tasks – SAGE Fixed Assets used for managing• Depreciation – Ran depreciation in SAGE and created a corresponding journal entry• Write Offs – Created journal entry to write off assets and updated assets in SAGE• Monthly Uploads – Used the monthly journal entry of capitalized items to add new assets to SAGE• Reconciliation – Updated the monthly reconciliation of SAGE assets to GLP’s general ledger • Responsible for identifying variances and creating correcting entries• Monthly Reports – Updated monthly reports with information from SAGE to show each asset’s current value• New Acquisition Uploads – Used valuation information from third party to add new assets to SAGE• Disposition of Assets – Removed sold assets from FAS and adjusted monthly depreciation entry if necessary

Feb 2015 - Aug 2016

Associate Accountant

Indcor Properties Llc

Chicago, Il

Same as GLP - IndCor was purchased by GLP in February of 2015

Sep 2014 - Feb 2015

Accounts Receivable

• Generate month end reports for Accounts Receivable department which consist of• Accounts Receivable to General Ledger, Accounts Payable to General Ledger, Expenses to General Ledger; Preliminary and Final recons• Min/Max Regional Reserve Report, Preliminary and Final and Regional Min/Man Adjustment • Bad Debt Write Off reconciliation • Bad Debt Slide for quarter end • Reconciliations of Min/Max Report, AR to GL Report and Final Balance Sheet • Monthly AR Analysis – Detailed overview of AR > 60• Reconcile and maintain Accounts Receivable balance sheet accounts• Identify and apply incoming cash to Accounts Receivable line items• Create journal entries necessary for Accounts Receivable items received and items to be moved• Generate and format multiple Accounts Receivable aging reports in Microsoft Excel• Meet deadlines for commissions and month end close• Create check request vouchers to send payments to vendors• Provide customer service to support clients in a timely manner

Sep 2012 - Sep 2014

Graduate Student

Dekalb, Il And Bordeaux, France

The Fast-Trak graduate program at Northern Illinois University is a one year Master's of Business Administration program. The program consists of classes at the NIU campus and two three week trips to Bordeaux, France to study at the Institut d'Administration des Entreprises (IAE). I completed the program on August 4th, and have both a Master's of Business Administration and a Master's of International Management.

Aug 2011 - Aug 2012

Accounting Assistant

Brummet & Olsen, Llp

• Organized incoming information for tax returns; assisted in general information• Processed finished returns to be sent out to clients• Contributed with general bookkeeping for small companies, recording checks, purchases and payroll• Created a database to be used for marketing to meet a client’s specifications• Performed general office work, answering phones, organizing files and other daily activities

Feb 2010 - Aug 2011

Marketing/Sales Intern

Interact Business Products, Llc

• Prospected local businesses to introduce copier products• Contributed to organize, set up and run the company's first in-house copier show• Learned the basics of making sales calls and looking for leads in a sales position• Worked in warehouse performed shipping and receiving• Aided technicians with small repairs to copier parts; ran small deliveries to customers

May 2006 - Aug 2006
Team & coworkers

Colleagues at GATX

Other employees you can reach at gatx.com. View company contacts for 899 employees →

5 education records

Matt Osiecki education

Master'S Degree, International Management

While attending the Fast-Trak MBA Program at Northern Illinois University our class traveled twice to Bordeaux, France to study at IAE.

Bachelor'S Degree, Accounting, Business Administration; Finance Concentration

Activities and Societies: Phi Omega Phi, Augustana Lacrosse, Augustana Accounting Association, Agusutana Business Club, CUBOM, Habitat.

Education record

Prospect High School

Activities and Societies: Football all 4 years, Senior Leader Program, KUNI

FAQ

Frequently asked questions about Matt Osiecki

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

What company does Matt Osiecki work for?

Matt Osiecki works for GATX.

What is Matt Osiecki's role at GATX?

Matt Osiecki is listed as Accounting Manager at GATX.

What is Matt Osiecki's email address?

AeroLeads has found 2 work email signals at @gatx.com for Matt Osiecki at GATX.

What is Matt Osiecki's phone number?

AeroLeads has found 3 phone signal(s) with area code 847, 630, 656 for Matt Osiecki at GATX.

Where is Matt Osiecki based?

Matt Osiecki is based in Greater Chicago Area, United States while working with GATX.

What companies has Matt Osiecki worked for?

Matt Osiecki has worked for Gatx, Glp Us Management Llc, Indcor Properties Llc, Jones Lang Lasalle, and Northern Illinois University.

Who are Matt Osiecki's colleagues at GATX?

Matt Osiecki's colleagues at GATX include Kenny Brevard, Ray Edwards, Satish Mistry, Rosalind Wilson, and Anthony Cozzi.

How can I contact Matt Osiecki?

You can use AeroLeads to view verified contact signals for Matt Osiecki at GATX, including work email, phone, and LinkedIn data when available.

What schools did Matt Osiecki attend?

Matt Osiecki holds Graduate, Business Administration from Northern Illinois University - College Of Business.

What skills is Matt Osiecki known for?

Matt Osiecki is listed with skills including Microsoft Excel, Powerpoint, Marketing, Accounting, Payroll, Microsoft Word, Microsoft Office, and Customer Service.

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