Integrations

Vertex Certified Directory

Vertex Certified Professionals Directory
Name Contact Location Employer Certification
Dean DerSimonian

dean.dersimonian@vertexinc.com

267-804-6076

King of Prussia,
PA,
United States

Vertex, Inc.

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Nate Stohrer

Nate.Stohrer@vertexinc.com

Cleveland,
OH,
United States

Vertex, Inc.

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Bob Burns

bob.burns@vertexinc.com

610-574-8957

King of Prussia,
PA,
United States

Vertex, Inc.

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Danielle Zimmerman

danielle.zimmerman@vertexinc.com

Philadelphia,
PA
United States

Vertex, Inc.

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Michael J Mullen

mike.mullen@vertexinc.com 
484-883-6729

King of Prussia,
PA
United States

Vertex, Inc.

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Ragav Venkatesswaran

ragav.v2531@gmail.com 
713-294-9029

Cypress,
TX
United States

Infosys Limited

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Shanna Coulter

scoulter@bdo.com

Allen,
TX
United States

BDO USA, LLP

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Value Added Tax
Meredith Sharpe

msharpe@bdo.com 
469-955-1957

Fort Worth,
TX
United States

BDO USA, LLP

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Value Added Tax
Ben Taylor

ben.t.taylor@pwc.com

Atlanta,
GA
United States

PricewaterhouseCoopers LLP

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Joe Waldrop

jwaldrop@dmainc.com

Nashville,
TN
United States

DMA

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Jesse Banuelos

jesse.banuelos@pwc.com 
408-834-6730

San Jose,
CA
United States

PricewaterhouseCoopers LLP

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Edwin Velazquez

edwin.velazquez1795@gmail.com 
224-523-3463

Chicago,
IL
United States

Grant Thornton

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Lucibeth Hammond

lucibeth.hammond@pwc.com 
771-897-9297

United Kingdom

PricewaterhouseCoopers LLP

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Value Added Tax
Michelle Corriveau

michelle.s.corriveau@pwc.com 
980-308-1410

Charlotte,
NC
United States

PricewaterhouseCoopers LLP

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Sesha Sudha Duvvuri

sduvvuri@dmainc.com

United States

DuCharme, McMillen & Associates, Inc.

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Value Added Tax
Jongwook Choi

JONGCHOI@DELOITTE.COM

United States

Deloitte Tax, LLP

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Corey Marum

corey.marum@vertexinc.com 
508-654-2250

Charleston,
SC
United States

Vertex, Inc.

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Debbie Deal

debbie.deal@us.gt.com 
919-881-5892

Raleigh,
NC
United States

Grant Thornton

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
Ethan Renko

ethan.renko@rsmus.com 
314-835-4488

St. Louis,
MO
United States

RSM US LLP

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Sales Tax
James X.J. Fei

JamesFei@outlook.com 
1-519-497-9688

New York
United States

Vertex, Inc.

Vertex Certified Indirect Tax O Series 9.x Functional Implementer - Value Added Tax

Our Customer Stories

Discover how companies like yours are using Vertex.

LEARN MORE
Man in suit reviewing tax calculations on sheet