Insights

Strategic Acquisition Formerly independent Peterson Sullivan LLP, Seattle-based accounting and advisory firm with revenue in the 25-50 million range became part of BDO USA, indicating potential integration opportunities, cross-sell of services, and alumni/clients transitioning relationships to larger networks.

PNW Market Fit Strong Pacific Northwest footprint with publicly traded, closely held, and high-net-worth client focus suggests sales opportunities around local compliance, audit, tax optimization, and advisory services tailored to mid-market and family-owned enterprises in the region.

Tech Stack Leverage Current technology usage (WordPress, .NET, SEO tooling, UI frameworks) indicates readiness for digital marketing collaboration and client portals; potential to offer modernization of client IT controls, cybersecurity readiness, and data analytics consulting.

Growth Readiness Firm size and near-200 professionals imply capacity for expanded service lines, industry specialization, and scalable outsourced finance or CFO services to growing clients seeking reliable, multi-disciplinary support.

Net Revenue Benchmark Revenue bracket of 25–50 million and exposure to large networks (BDO) points to cross-border and multi-office engagements, with opportunities in alliance-based proposals, referrals, and competitive positioning against global firms for mid-market audits and tax.

Peterson Sullivan LLP Tech Stack

Peterson Sullivan LLP uses 8 technology products and services including WordPress, Font Awesome, Twemoji, and more. Explore Peterson Sullivan LLP's tech stack below.

  • WordPress
    Content Management System
  • Font Awesome
    Font Scripts
  • Twemoji
    Font Scripts
  • PHP
    Programming Languages
  • Yoast SEO
    Search Engines
  • Kendo UI
    UI Frameworks
  • Adobe Fonts
    Web Fonts
  • Microsoft ASP.NET
    Web Frameworks

Peterson Sullivan LLP's Email Address Formats

Peterson Sullivan LLP uses at least 1 format(s):
Peterson Sullivan LLP Email FormatsExamplePercentage
FLast@pscpa.comJDoe@pscpa.com
93%
Last@pscpa.comDoe@pscpa.com
5%
FirstL@pscpa.comJohnD@pscpa.com
2%

Frequently Asked Questions

What is Peterson Sullivan LLP's phone number?

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You can contact Peterson Sullivan 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 Peterson Sullivan LLP's official website and social media links?

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Peterson Sullivan LLP's official website is pscpa.com and has social profiles on LinkedIn.

How much revenue does Peterson Sullivan LLP generate?

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As of July 2026, Peterson Sullivan LLP's annual revenue is estimated to be $10M - $25M.

What is Peterson Sullivan LLP's SIC code NAICS code?

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Peterson Sullivan 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 Peterson Sullivan LLP have currently?

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As of July 2026, Peterson Sullivan LLP has approximately 186 employees across 1 continents, including North America. Key team members include Tax Manager: A. G.Defensive Tactics Instructor: S. G.. Explore Peterson Sullivan LLP's employee directory with LeadIQ.

What industry does Peterson Sullivan LLP belong to?

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Peterson Sullivan LLP operates in the Accounting industry.

What technology does Peterson Sullivan LLP use?

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Peterson Sullivan LLP's tech stack includes WordPressFont AwesomeTwemojiPHPYoast SEOKendo UIAdobe FontsMicrosoft ASP.NET.

What is Peterson Sullivan LLP's email format?

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Peterson Sullivan LLP's email format typically follows the pattern of FLast@pscpa.com. Find more Peterson Sullivan LLP email formats with LeadIQ.

When was Peterson Sullivan LLP founded?

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Peterson Sullivan LLP was founded in 1953.
Peterson Sullivan LLP logo

Peterson Sullivan LLP

AccountingWashington, United States51-200 Employees

Peterson Sullivan LLP is a mid-sized public accounting and advisory firm based in Seattle. It provides accounting, audits, tax, and consulting services to a mix of clients, including publicly traded companies, closely held businesses, and high-net-worth individuals, serving the Pacific Northwest and international markets. The practice emphasizes technical proficiency and reliable client service across its engagements.

Section iconCompany Overview

Phone number
Website
pscpa.com
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1953
Employees
51-200

Section iconFunding & Financials

  • $10M - $25M

    Peterson Sullivan LLP's revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $10M - $25M

    Peterson Sullivan LLP's revenue is estimated to be in the range of $10M - $25M

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