Insights

Mid-Sized agility Established in the mid-1940s with 11-50 employees in New England, the firm operates with a broad client base across privately held businesses, nonprofits, high-net-worth individuals, and publicly traded companies, suggesting value in scalable accounting and advisory services for growing organizations.

Proactive advisory Clients rely on proactive insights to reduce risk and meet reporting deadlines, indicating opportunities to upsell consulting, internal controls, risk assessment, and CFO-style services beyond traditional accounting and tax preparation.

Managed outsourcing The firm tailors engagements from full outsourcing to in-house financial statement testing, creating a sales angle for cost-effective, flexible engagement models appealing to firms seeking selective or partial outsourcing.

Tech enablement Technology stack includes AWS, Google Maps, and development tools, presenting a pathway to discuss modernization, cloud-based accounting platforms, data analytics, and security-focused solutions to enhance client operations.

Growth readiness Revenue in the 1–10 million range and a client mix spanning private, nonprofit, and high-net-worth segments signal a target for scalable services, cross-selling to ERISA/employee benefit plan audits, and expansion opportunities with similar mid-market firms.

O'Brien, Riley, and Ryan, P.C. Tech Stack

O'Brien, Riley, and Ryan, P.C. uses 8 technology products and services including Amazon Web Services, Google Maps, Priority Hints, and more. Explore O'Brien, Riley, and Ryan, P.C.'s tech stack below.

  • Amazon Web Services
    Cloud Hosting
  • Google Maps
    Maps
  • Priority Hints
    Performance
  • PHP
    Programming Languages
  • Lua
    Programming Languages
  • GoDaddy
    Web Hosting
  • AddToAny
    Widgets
  • Facebook
    Widgets

O'Brien, Riley, and Ryan, P.C.'s Email Address Formats

O'Brien, Riley, and Ryan, P.C. uses at least 1 format(s):
O'Brien, Riley, and Ryan, P.C. Email FormatsExamplePercentage
FLast@orrpc.comJDoe@orrpc.com
78%
Last@orrpc.comDoe@orrpc.com
18%
First@orrpc.comJohn@orrpc.com
4%

Frequently Asked Questions

What is O'Brien, Riley, and Ryan, P.C.'s phone number?

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You can contact O'Brien, Riley, and Ryan, 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'Brien, Riley, and Ryan, P.C.'s official website and social media links?

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O'Brien, Riley, and Ryan, P.C.'s official website is orrpc.com and has social profiles on LinkedIn.

How much revenue does O'Brien, Riley, and Ryan, P.C. generate?

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As of August 2026, O'Brien, Riley, and Ryan, P.C.'s annual revenue is estimated to be $1M - $10M.

What is O'Brien, Riley, and Ryan, P.C.'s SIC code NAICS code?

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O'Brien, Riley, and Ryan, 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'Brien, Riley, and Ryan, P.C. have currently?

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As of August 2026, O'Brien, Riley, and Ryan, P.C. has approximately 16 employees across 1 continents, including North America. Key team members include Partner: S. O. B.. Explore O'Brien, Riley, and Ryan, P.C.'s employee directory with LeadIQ.

What industry does O'Brien, Riley, and Ryan, P.C. belong to?

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O'Brien, Riley, and Ryan, P.C. operates in the Accounting industry.

What technology does O'Brien, Riley, and Ryan, P.C. use?

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O'Brien, Riley, and Ryan, P.C.'s tech stack includes Amazon Web ServicesGoogle MapsPriority HintsPHPLuaGoDaddyAddToAnyFacebook.

What is O'Brien, Riley, and Ryan, P.C.'s email format?

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O'Brien, Riley, and Ryan, P.C.'s email format typically follows the pattern of FLast@orrpc.com. Find more O'Brien, Riley, and Ryan, P.C. email formats with LeadIQ.
O'Brien, Riley, and Ryan, P.C. logo

O'Brien, Riley, and Ryan, P.C.

AccountingMassachusetts, United States11-50 Employees

O’Brien, Riley, and Ryan, P.C. is an accounting firm based in Braintree, Massachusetts, that has been serving clients in the New England region since the mid-1940s. Its client base includes privately held businesses, non-profit organizations, high-net-worth individuals, and publicly traded companies. The firm emphasizes meeting reporting deadlines while providing proactive insight intended to help clients achieve objectives and minimize risk.

It adapts its services to each client’s needs, ranging from full outsourcing to testing and providing opinions on in-house financial statements. The company maintains professional credentials through membership in the American Institute of Certified Public Accountants and the Employee Benefit Plan Audit Quality Center.

Section iconCompany Overview

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

Section iconFunding & Financials

  • $1M - $10M

    O'Brien, Riley, and Ryan, P.C.'s revenue is estimated to be in the range of $1M - $10M

Section iconFunding & Financials

  • $1M - $10M

    O'Brien, Riley, and Ryan, P.C.'s revenue is estimated to be in the range of $1M - $10M

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