Insights

Life Sciences Focus Target life sciences clients in California, leveraging OUM & Co. LLP’s strong reputation in biotech, specialty pharma, diagnostics and medical devices to cross-sell audit, tax and advisory services, especially for SEC compliance and risk management.

Bold Growth Capitalize on recent recognition as a top Bay Area and IPA Best of the Best firm to approach mid-market life sciences and tech companies seeking high-quality, cost-effective alternatives to Big 4 with hands-on partners and experienced managers.

Tech Enabled Position as a digitally forward firm with technology and risk advisory services, using their tech stack credentials to appeal to tech and biotech clients needing integrated solutions, ESG/ISO compliance, and automation opportunities.

Regional Footprint Leverage offices in San Francisco and San Diego to pursue multi-site or California-focused engagements, including private equity/ investment fund clients and manufacturing firms seeking scalable assurance and tax support.

Partnership Opportunity Highlight career progression and partner-led service model to attract growth-oriented clients seeking senior oversight, transparent communication, and lower overhead compared with larger firms, enabling proactive advisory and long-term relationships.

OUM & Co. LLP Tech Stack

OUM & Co. LLP uses 8 technology products and services including QuickBooks, CISSP, SOC 3, and more. Explore OUM & Co. LLP's tech stack below.

  • Accounting And Finance
  • CISSP
    Certificates
  • SOC 3
    Certificates
  • Content Management System
  • Customer Relationship Management
  • Digital Asset Management
  • Oracle
    Enterprise
  • Font Awesome
    Font Scripts

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

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 August 2026, OUM & Co. LLP's annual revenue is estimated to be $25M - $50M.

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

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OUM & Co. LLP's SIC code is 7389 - Business Services, Not Elsewhere Classified 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 August 2026, OUM & Co. LLP has approximately 46 employees across 4 continents, including North AmericaAsiaAfrica. Key team members include Digital Marketing Manager: M. A.Tax Accountant: E. S.Lecturer: J. K.. 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 QuickBooksCISSPSOC 3WordPressSAPDropboxOracleFont Awesome.

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 logo

OUM & Co. LLP

AccountingCalifornia, United States11-50 Employees

OUM & Co. LLP is an accounting and business advisory firm based in San Francisco, California, with an additional office in San Diego. The firm provides assurance and audit, tax, SEC compliance, and technology and risk advisory services to both public and private companies, focusing on life sciences, technology, and related sectors such as biotech, specialty pharma, diagnostics and medical devices. Many of its professionals are partners and managers who previously worked at large firms, and the firm emphasizes timely communication and aims to keep overhead lower than the Big 4.

It is recognized as a Top 25 Bay Area firm and as one of the Top 200 firms in the U.S. by Inside Public Accounting. The firm pursues lifelong relationships with clients, employees, and communities, and it promotes a collaborative, diverse environment that values authentic contribution. Its client base includes companies in life sciences, technology, real estate, private equity/investment funds, and manufacturing, reflecting activity across multiple industries.

Section iconCompany Overview

Phone number
Website
oumcpa.com
SIC Code
7389 - Business Services, Not Elsewhere Classified
Stock Symbol
1917.HK
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1976
Employees
11-50

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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