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William Seitz Email & Phone Number

Tax Senior Manager at Miller, Cooper & Co., Ltd.
Location: Chicago, Illinois, United States 7 work roles 2 schools
1 work email found @millercooper.com 2 phones found area 312 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email w****@millercooper.com
Direct phone (312) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Miller, Cooper & Co., Ltd.
Role
Tax Senior Manager
Location
Chicago, Illinois, United States
Company size
433 employees

Who is William Seitz? Overview

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Quick answer

William Seitz is listed as Tax Senior Manager at Miller, Cooper & Co., Ltd., a company with 433 employees, based in Chicago, Illinois, United States. AeroLeads shows a work email signal at millercooper.com, phone signal with area code 312, and a matched LinkedIn profile for William Seitz.

William Seitz previously worked as Manager - Sales and Use Tax at Rubinbrown Llp and Senior Manager - Sales and Use Tax at Bdo. William Seitz holds Juris Doctorate from University Of Illinois College Of Law.

Company email context

Email format at Miller, Cooper & Co., Ltd.

This section adds company-level context without repeating William Seitz's masked contact details.

{first_initial}{last}@millercooper.com
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AeroLeads found 1 current-domain work email signal for William Seitz. Compare company email patterns before reaching out.

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Profile bio

About William Seitz

William Seitz is a Tax Senior Manager at Miller, Cooper & Co., Ltd.. He possess expertise in tax, tax accounting, tax research, corporate tax, accounting and 9 more skills.

Listed skills include Tax, Tax Accounting, Tax Research, Corporate Tax, and 10 others.

Current workplace

William Seitz's current company

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

Miller, Cooper & Co., Ltd.
Miller, Cooper & Co., Ltd.
Tax Senior Manager
Chicago, IL, US
Website
millercooper.com
Employees
433
AeroLeads page
Company profile
View company profile Email format
7 roles · 24 years

William Seitz work experience

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

Manager - Sales And Use Tax

Current
Rubinbrown Llp

Saint Louis, MO, US

Feb 2024 - Present

Senior Manager - Sales And Use Tax

Bdo

Brussels, Brussels, BE

May 2018 - May 2020

Manager - Sales And Use Tax

Ey

London, GB

Indirect Tax - Sales and Use

Dec 2016 - Apr 2018

Senior Manager, Illinois Sales Tax Specialist For Salestaxsupport.Com

True Partners Consulting

Chicago, Illinois, US

Nov 2006 - Nov 2016

Senior Consultant

Deloitte Tax Llp
2002 - 2006 ~4 yrs
Team & coworkers

Colleagues at Miller, Cooper & Co., Ltd.

Other employees you can reach at millercooper.com. View company contacts for 433 employees →

KN Kevin Niehaus Kevin Niehaus Colleague at Miller, Cooper & Co., Ltd. Wonder Lake, Illinois, United States, United States View → NM Nolan Mueller Nolan Mueller Colleague at Miller, Cooper & Co., Ltd. Normal, Illinois, United States, United States View → TB Tyler B. Tyler B. Colleague at Miller, Cooper & Co., Ltd. Normal, Illinois, United States, United States View → JZ Jennifer Zamarin Jennifer Zamarin Colleague at Miller, Cooper & Co., Ltd. Greater Chicago Area, United States View → CR Caroline Riccolo Caroline Riccolo Colleague at Miller, Cooper & Co., Ltd. Chicago, Illinois, United States, United States View → AA Andrea Altstadt Odom Andrea Altstadt Odom Colleague at Miller, Cooper & Co., Ltd. Greater Chicago Area, United States View → MS Mark Schmitt Mark Schmitt Colleague at Miller, Cooper & Co., Ltd. Greater Chicago Area, United States View → AK Avrum Katz Avrum Katz Colleague at Miller, Cooper & Co., Ltd. Deerfield, Illinois, United States, United States View → SB Sarah Beirne Sarah Beirne Colleague at Miller, Cooper & Co., Ltd. Greater Chicago Area, United States View → AS Adam Schreiter Adam Schreiter Colleague at Miller, Cooper & Co., Ltd. Naperville, Illinois, United States, United States View →
2 education records

William Seitz education

Juris Doctorate

University Of Illinois College Of Law

B.A., Political Science - History

University Of California, Riverside
FAQ

Frequently asked questions about William Seitz

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

What company does William Seitz work for?

William Seitz works for Miller, Cooper & Co., Ltd..

What is William Seitz's role at Miller, Cooper & Co., Ltd.?

William Seitz is listed as Tax Senior Manager at Miller, Cooper & Co., Ltd..

What is William Seitz's email address?

AeroLeads has found 1 work email signal at @millercooper.com for William Seitz at Miller, Cooper & Co., Ltd..

What is William Seitz's phone number?

AeroLeads has found 2 phone signal(s) with area code 312 for William Seitz at Miller, Cooper & Co., Ltd..

Where is William Seitz based?

William Seitz is based in Chicago, Illinois, United States while working with Miller, Cooper & Co., Ltd..

What companies has William Seitz worked for?

William Seitz has worked for Miller, Cooper & Co., Ltd., Rubinbrown Llp, Bdo, Ey, and True Partners Consulting.

Who are William Seitz's colleagues at Miller, Cooper & Co., Ltd.?

William Seitz's colleagues at Miller, Cooper & Co., Ltd. include Kevin Niehaus, Nolan Mueller, Tyler B., Jennifer Zamarin, and Caroline Riccolo.

How can I contact William Seitz?

You can use AeroLeads to view verified contact signals for William Seitz at Miller, Cooper & Co., Ltd., including work email, phone, and LinkedIn data when available.

What schools did William Seitz attend?

William Seitz holds Juris Doctorate from University Of Illinois College Of Law.

What skills is William Seitz known for?

William Seitz is listed with skills including Tax, Tax Accounting, Tax Research, Corporate Tax, Accounting, Due Diligence, Auditing, and Mergers And Acquisitions.

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