Insights

Specialized Industry Focus OUM & Co. LLP has a strong reputation in the Life Sciences sector, particularly in biotech, pharma, and medical devices, making it a prime partner for firms seeking industry-specific accounting and advisory services amid evolving regulatory and funding landscapes.

Digital Readiness With a focus on forward-thinking solutions and a diverse tech stack including SAP, Oracle, and MySQL, OUM & Co. LLP is positioned to support clients with advanced technological integrations, cloud services, and data management, ideal for companies seeking modernization in finance operations.

Growth and Recognition Recognized as a top regional and national firm, including inclusion in Inside Public Accounting’s Best of the Best, OUM & Co. LLP’s elevated status indicates a robust service quality and a potential opportunity to attract clients looking for reputable, award-winning advisors.

Leadership Expansion Recent leadership promotions, such as Warren Chung’s elevation to Partner, suggest the firm’s strategic growth and increased capacity to serve high-value clients, opening opportunities for collaborations or consulting engagements with influential industry leaders.

Client-Centric Approach OUM & Co. LLP emphasizes building lifelong relationships through personalized, timely communication and lower overhead costs than Big 4 competitors, which can appeal to mid-market firms and startups seeking reliable, cost-effective advisory support in a competitive environment.

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OUM & Co. LLP Tech Stack

OUM & Co. LLP uses 8 technology products and services including WordPress, SAP, MySQL, and more. Explore OUM & Co. LLP's tech stack below.

  • WordPress
    Content Management System
  • SAP
    Customer Relationship Management
  • MySQL
    Database
  • Dropbox
    Digital Asset Management
  • Oracle
    Enterprise
  • Font Awesome
    Font Scripts
  • TweenMax
    Javascript Frameworks
  • Modernizr
    Javascript Libraries

OUM & Co. LLP's Email Address Formats

OUM & Co. LLP uses at least 1 format(s):
OUM & Co. LLP Email FormatsExamplePercentage
FLast@oumcpa.comJDoe@oumcpa.com
77%
LFirst@oumcpa.comDJohn@oumcpa.com
11%
Last@oumcpa.comDoe@oumcpa.com
10%
First.Last@oumcpa.comJohn.Doe@oumcpa.com
2%

Frequently Asked Questions

Where is OUM & Co. LLP's headquarters located?

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OUM & Co. LLP's main headquarters is located at 601 California Street, 18th Floor. The company has employees across 4 continents, including North AmericaAsiaAfrica.

What is OUM & Co. LLP's phone number?

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You can contact OUM & Co. LLP's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is OUM & Co. LLP's stock symbol?

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OUM & Co. LLP is a publicly traded company; the company's stock symbol is 1917.HK.

What is OUM & Co. LLP's official website and social media links?

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OUM & Co. LLP's official website is oumcpa.com and has social profiles on LinkedIn.

How much revenue does OUM & Co. LLP generate?

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As of December 2025, OUM & Co. LLP's annual revenue is estimated to be $15M.

What is OUM & Co. LLP's SIC code NAICS code?

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OUM & Co. LLP's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does OUM & Co. LLP have currently?

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As of December 2025, OUM & Co. LLP has approximately 51 employees across 4 continents, including North AmericaAsiaAfrica. Key team members include Partner: J. U.Principal Owner: O. C. O.Digital Marketing Manager: M. A.. Explore OUM & Co. LLP's employee directory with LeadIQ.

What industry does OUM & Co. LLP belong to?

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OUM & Co. LLP operates in the Accounting industry.

What technology does OUM & Co. LLP use?

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OUM & Co. LLP's tech stack includes WordPressSAPMySQLDropboxOracleFont AwesomeTweenMaxModernizr.

What is OUM & Co. LLP's email format?

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OUM & Co. LLP's email format typically follows the pattern of FLast@oumcpa.com. Find more OUM & Co. LLP email formats with LeadIQ.

When was OUM & Co. LLP founded?

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OUM & Co. LLP was founded in 1976.

OUM & Co. LLP

AccountingCalifornia, United States51-200 Employees

OUM & Co. LLP is an award-winning Accounting & Business Advisory Firm in California, with offices in San Francisco and San Diego. Our firm is listed as a Top 25 Bay Area firm, and recognized as one of the Top 200 firms in the U.S. by INSIDE Public Accounting. Most of our professional staff are experienced partners and managers (formerly with Big 4 firms). We offer solutions to our clients with timely communication, lower overhead costs compared to the Big 4, and forward thinking ideas suitable for this digital era.

We provide high quality Assurance and Audit, Tax, SEC Compliance, Technology and Risk Advisory Services, and are committed to building lifelong relationships with our clients, employees and the communities we serve. We foster diverse ideas and encourage our people to bring their authentic self to work in a collaborative and fun environment. Our expertise is focused on biotech, specialty pharma, technology, diagnostic and medical device sectors industry. Did you know that we are one of the top assurance and tax firms for Life Sciences in California?

From hundreds of BDO Alliance USA member firms, we are one of six selected as IPA's Best of the Best firms in the nation by Inside Public Accounting for 2020. Get to know us, and see what we stand for.
 
Specialties
 
Audit, Tax, & Advisory Services to public (SEC) & private companies in the Life Sciences, Technology, Real Estate, Private Equity/Investment Fund and Manufacturing Industries among others.

Section iconCompany Overview

Headquarters
601 California Street, 18th Floor
Phone number
Website
oumcpa.com
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
Stock Symbol
1917.HK
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1976
Employees
51-200

Section iconFunding & Financials

  • $25M$50M

    OUM & Co. LLP's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    OUM & Co. LLP's revenue is estimated to be in the range of $25M$50M

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