Established in 1939 in Pasadena, California, KROST, is a full-service Certified Public Accounting and Consulting firm serving clients across various industries. Our focus is recognizing opportunities and creating value for our clients by equipping them with the tools to make better business and financial decisions for the future. As trusted advisors, our clients depend on us to provide timely information, innovative solutions, and result-driven teamwork to ensure success.

Our sister company KBKG provides tax specialty services nationwide. Our turn-key solutions complement traditional tax and accounting practices. Our engineers and tax experts work directly with CPAs and their clients on specialty tax projects such as R&D Tax Credits, Cost Segregation, Green Building Tax Incentives (179D & 45L), Employment Tax Credits, Property Tax Review, Transfer Pricing and more. Our ability to work seamlessly with other firms is the reason so many CPAs across the nation trust and refer us to their clients.

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Gak Krost

A Message from the Managing Shareholder, Gregory A. Kniss

Our team of professionals has saved our clients millions of dollars in taxes. We focus on fulfilling the needs of our clients, affiliates, and referral sources by providing quality service and building a long term relationship with exceptional standards. Our goal is to always meet or exceed expectations with our expertise, professionalism, and deliverables.

Contact Us

KROST Certified Public Accountants & Consultants

225 S Lake Ave, Suite 400, Pasadena, CA 91101

+1 626 449 4225

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Firm Locations

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Primary Location

225 S Lake Ave, Suite 400, Pasadena, CA 91101, United States

Gregory Kniss, Managing Shareholder
+1 626 449 4225

Los Angeles, CA, United States

6100 Center Dr W, Suite 825, Los Angeles, CA 90045, United States

+1 310 846 5770

Valencia, CA, United States

26650 The Old Rd, Suite 216, Valencia, CA 91381, United States

+1 877 525 4462

Woodland Hills, CA, United States

21650 Oxnard St, Suite 1700, Woodland Hills, CA 91367, United States

+1 877 525 4462

Chicago, IL, United States

1132 S Wabash Ave, Suite 302, Chicago, IL 60605, United States

+1 877 525 4462

Bedford, TX, United States

1600 Airport Fwy, Suite 368, Bedford, TX 76022, United States

+1 626 449 4225

New York, NY, United States

255 W 36th Street , Suite 504, New York, NY 10018, United States

+1 877 525 4462

Alpharetta, GA, United States

53 S Main St, Suite 300, Alpharetta, GA 30009, United States

+1 949 836 0418

People at KROST Certified Public Accountants & Consultants

Greg kniss Photo

Greg kniss

Managing Principal

Gian Pazzia Photo

Gian Pazzia


Lou Guerrero Photo

Lou Guerrero


So Sum Lee Photo

So Sum Lee


Jason Melillo Photo

Jason Melillo


Eddie Price Photo

Eddie Price


Malik Javed Photo

Malik Javed


Alex Martin Photo

Alex Martin

Principal - Transfer Pricing

Donna Bateman Photo

Donna Bateman


Elizabeth Hugh Photo

Elizabeth Hugh


Keith Hamasaki Photo

Keith Hamasaki

Director – Assurance & Advisory

Stacey Korman Photo

Stacey Korman


Lon O'Connor Photo

Lon O'Connor


Brad Pauley Photo

Brad Pauley

Tax Director

Ricky Yau Photo

Ricky Yau

Director - IT

Evelyn Fernandez Photo

Evelyn Fernandez


Gina Lim Photo

Gina Lim

National Director - Business Development

Bethany Wolfe Photo

Bethany Wolfe

Marketing Director

Paren Knadjian Photo

Paren Knadjian

Practice Leader - M&A and Capital Markets

Alan Lo Photo

Alan Lo

Manager - Tax

Sumit Sharma Photo

Sumit Sharma


Roberta McCue Photo

Roberta McCue

Senior Tax Manager

Tetyana Guguchkina Photo

Tetyana Guguchkina

Sr. Manager - R&D Tax Credits

Jonathan Tucker Photo

Jonathan Tucker

Principal - Research and Development Tax Credit Services

Mike Kniss Photo

Mike Kniss

Manager - Research & Development Tax Credit Services

Matthew Weber Photo

Matthew Weber

Tax Director

Artur Babaian Photo

Artur Babaian


Karen Dembrowski Photo

Karen Dembrowski

Tax Manager

Jim Estrella Photo

Jim Estrella


Derek Johnson Photo

Derek Johnson


Jeff Kamin Photo

Jeff Kamin


Lisa McCoy Photo

Lisa McCoy

Recruiting Manager

Winston Shurtz Photo

Winston Shurtz

Senior Manager

Diana Vinder Photo

Diana Vinder

Tax Manager

Lisa Arangua Photo

Lisa Arangua

Manager - Human Resources

Sossi Bekarian Photo

Sossi Bekarian

Manager - Accounting

Jessica Bowen Photo

Jessica Bowen

Manager - R&D Tax Credit Services

Sasha Brenecki Photo

Sasha Brenecki

Manager - Cost Segregation Services

Anna Chen Photo

Anna Chen

Senior Manager - Marketing

Steve Chhuor Photo

Steve Chhuor

Manager – Assurance & Advisory

Gloria Gamboa Photo

Gloria Gamboa

Senior Human Resources Generalist

Scott Gilmore Photo

Scott Gilmore

Certified Public Accountant

Jonathan Louie Photo

Jonathan Louie

Manager - Tax

Elise Rhee Photo

Elise Rhee

Manager – R&D Tax Credits

Harry Sahi Photo

Harry Sahi

Manager - Cost Segregation Services

Ryan VanderVelden Photo

Ryan VanderVelden

Manager - Cost Segregation Services

Aric Wong Photo

Aric Wong

Manager - Tax

Auli Sinaga Photo

Auli Sinaga

Marketing Assistant

Marissa Torres Photo

Marissa Torres

Executive Assistant

Thought Leadership by KROST Certified Public Accountants & Consultants