Insights

Tax & Audit Focus Target mid-sized regional clients in Northeastern Iowa, Northwestern Illinois, and Southwestern Wisconsin that require both tax and audit services, including banks, savings and loans, school districts, municipalities, pension plans, nursing homes, and nonprofits.

Banking & Community Leverage experience with bank examinations and financial institutions to pursue relationships with local banks, credit unions, and financially active nonprofits that need exam support, regulatory guidance, and internal audits.

SMB Growth Position as a trusted advisor for small to mid-sized businesses and farmers seeking tax optimization, financial compliance, and affordable audit services to support growth, succession planning, and financing.

Technology Enablement Highlight use of modern cloud and web technologies (Google Workspace, MySQL, WordPress, Google Tag Manager) to offer efficient collaboration, secure data handling, and scalable client portals for expanding client service capabilities.

Strategic Partnerships Pursue alliances with regional accounting networks or larger firms for overflow tax and audit work, expanded service lines, or joint marketing to broaden service reach while maintaining local expertise.

O'Connor, Brooks & Co., P.C. Tech Stack

O'Connor, Brooks & Co., P.C. uses 8 technology products and services including Cloudflare, DreamWeaver, Google Workspace, and more. Explore O'Connor, Brooks & Co., P.C.'s tech stack below.

  • Cloudflare
    Content Management System
  • DreamWeaver
    Editors
  • Google Workspace
    Email
  • Font Awesome
    Font Scripts
  • Twemoji
    Font Scripts
  • WordPress Block Editor
    Page Builders
  • HTTP/3
    Web & Portal Technology
  • MetaSlider
    Web Platform Extensions

O'Connor, Brooks & Co., P.C.'s Email Address Formats

O'Connor, Brooks & Co., P.C. uses at least 2 format(s):
O'Connor, Brooks & Co., P.C. Email FormatsExamplePercentage
FLast@oconnorbrooks.comJDoe@oconnorbrooks.com
89%
Last@oconnorbrooks.comDoe@oconnorbrooks.com
11%
FLast@octhomaslaw.comJDoe@octhomaslaw.com
100%

Frequently Asked Questions

What is O'Connor, Brooks & Co., P.C.'s phone number?

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You can contact O'Connor, Brooks & Co., P.C.'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 O'Connor, Brooks & Co., P.C.'s official website and social media links?

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O'Connor, Brooks & Co., P.C.'s official website is oconnorbrooks.com and has social profiles on LinkedIn.

How much revenue does O'Connor, Brooks & Co., P.C. generate?

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As of August 2026, O'Connor, Brooks & Co., P.C.'s annual revenue is estimated to be $10M - $25M.

What is O'Connor, Brooks & Co., P.C.'s SIC code NAICS code?

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O'Connor, Brooks & Co., P.C.'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 O'Connor, Brooks & Co., P.C. have currently?

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As of August 2026, O'Connor, Brooks & Co., P.C. has approximately 15 employees across 1 continents, including North America. Key team members include Partner: M. R.Partner: P. M.Principal: E. S.. Explore O'Connor, Brooks & Co., P.C.'s employee directory with LeadIQ.

What industry does O'Connor, Brooks & Co., P.C. belong to?

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O'Connor, Brooks & Co., P.C. operates in the Accounting industry.

What technology does O'Connor, Brooks & Co., P.C. use?

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O'Connor, Brooks & Co., P.C.'s tech stack includes CloudflareDreamWeaverGoogle WorkspaceFont AwesomeTwemojiWordPress Block EditorHTTP/3MetaSlider.

What is O'Connor, Brooks & Co., P.C.'s email format?

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O'Connor, Brooks & Co., P.C.'s email format typically follows the pattern of FLast@oconnorbrooks.com. Find more O'Connor, Brooks & Co., P.C. email formats with LeadIQ.
O'Connor, Brooks & Co., P.C. logo

O'Connor, Brooks & Co., P.C.

AccountingIowa, United States11-50 Employees

O'Connor, Brooks & Co., P.C. is a regional accounting firm located in Dubuque, Iowa. The practice centers on tax services for individuals and for small- to mid-size businesses, including banks and farming operations. In addition to tax work, the firm performs audits for a variety of clients and undertakes bank examinations as directed by the Iowa Department of Banking.

The firm serves a regional footprint across Northeastern Iowa, Northwestern Illinois, and Southwestern Wisconsin. Its audit clients include small and mid-sized businesses, savings and loan institutions, school districts, municipalities, pension plans, nursing homes, and other nonprofit organizations. The team operates as a mid-sized firm, providing service across this tri-state region.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    O'Connor, Brooks & Co., P.C.'s revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $10M - $25M

    O'Connor, Brooks & Co., P.C.'s revenue is estimated to be in the range of $10M - $25M

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