Insights

Legal Market Niche Costello Law Firm specializes in high-stakes white collar defense, government investigations, and complex civil and regulatory enforcement across state and federal levels, indicating a target for corporate, professional services clients facing regulatory risk.

Seattle Region Focus Based in Seattle with 11-50 employees, the firm serves corporations, business owners, and professionals, suggesting room to upsell compliance audits, crisis management services, and regional regulatory counsel to mid-size companies in the Pacific Northwest.

Technology Stack Utilizes AWS, MySQL, Microsoft 365, and analytics/SEO tools, signaling openness to modern secure IT, data analytics for case strategy, and potential partnerships for cybersecurity, data governance, and digital marketing support.

Growth Potential Revenue in the 1M–10M range with a lean team presents opportunities for scalable services such as client onboarding automation, matter management software, and fractional support in business development and marketing to accelerate growth.

Competitive Landscape Competes with established online legal service providers and content-rich firms; potential cross-sell of compliance training, investigative due diligence, and dispute resolution services to small- to mid-sized enterprises seeking cost-effective, discreet legal support.

Costello Law Firm, PLLC Tech Stack

Costello Law Firm, PLLC uses 8 technology products and services including Amazon Web Services, WordPress, MySQL, and more. Explore Costello Law Firm, PLLC's tech stack below.

  • Amazon Web Services
    Cloud Hosting
  • WordPress
    Content Management System
  • MySQL
    Database
  • Twemoji
    Font Scripts
  • PHP
    Programming Languages
  • HSTS
    Security
  • Tailwind CSS
    UI Frameworks
  • Google Search Console
    Web Analytics

Costello Law Firm, PLLC's Email Address Formats

Costello Law Firm, PLLC uses at least 1 format(s):
Costello Law Firm, PLLC Email FormatsExamplePercentage
FLast@costellolawfirm.comJDoe@costellolawfirm.com
67%
First_Last@costellolawfirm.comJohn_Doe@costellolawfirm.com
33%

Frequently Asked Questions

What is Costello Law Firm, PLLC's phone number?

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You can contact Costello Law Firm, PLLC'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 Costello Law Firm, PLLC's official website and social media links?

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Costello Law Firm, PLLC's official website is costellolawfirm.com and has social profiles on LinkedIn.

How much revenue does Costello Law Firm, PLLC generate?

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As of August 2026, Costello Law Firm, PLLC's annual revenue is estimated to be $1M - $10M.

What is Costello Law Firm, PLLC's SIC code NAICS code?

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Costello Law Firm, PLLC's SIC code is 8111 - Legal Services NAICS code is 54111 - Offices of Lawyers.

How many employees does Costello Law Firm, PLLC have currently?

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As of August 2026, Costello Law Firm, PLLC has approximately 14 employees across 1 continents, including North America. Key team members include Owner: C. C.Law Clerk: C. P.Law Clerk - White Collar Crime Defense: H. L.. Explore Costello Law Firm, PLLC's employee directory with LeadIQ.

What industry does Costello Law Firm, PLLC belong to?

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Costello Law Firm, PLLC operates in the Law Practice industry.

What technology does Costello Law Firm, PLLC use?

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Costello Law Firm, PLLC's tech stack includes Amazon Web ServicesWordPressMySQLTwemojiPHPHSTSTailwind CSSGoogle Search Console.

What is Costello Law Firm, PLLC's email format?

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Costello Law Firm, PLLC's email format typically follows the pattern of FLast@costellolawfirm.com. Find more Costello Law Firm, PLLC email formats with LeadIQ.

When was Costello Law Firm, PLLC founded?

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Costello Law Firm, PLLC was founded in 1998.
Costello Law Firm, PLLC logo

Costello Law Firm, PLLC

Law PracticeWashington, United States11-50 Employees

Costello Law Firm, PLLC is a Seattle-based law practice that represents corporations, business owners, and professionals facing government scrutiny or litigation. Drawing on nearly three decades of experience working with government investigators and prosecutors, the firm aims to resolve these high-stakes matters through discreet, efficient, and principled handling. The practice covers white-collar matters, including complex grand jury investigations, government investigations, and trials in state and federal courts.

The firm also handles civil and regulatory enforcement actions and professional licensing issues at federal, state, and local levels, as well as complex litigation involving quasi-criminal civil allegations and concurrent or parallel investigations across criminal, civil, and regulatory venues. With a mid-sized team, the firm serves clients navigating government-facing proceedings from its Seattle base and across applicable jurisdictions.

Section iconCompany Overview

Phone number
SIC Code
8111 - Legal Services
NAICS Code
54111 - Offices of Lawyers
Founded
1998
Employees
11-50

Section iconFunding & Financials

  • $1M - $10M

    Costello Law Firm, PLLC's revenue is estimated to be in the range of $1M - $10M

Section iconFunding & Financials

  • $1M - $10M

    Costello Law Firm, PLLC's revenue is estimated to be in the range of $1M - $10M

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