What is Mastagni Holstedt, A Professional Corporation's NAICS code?

Mastagni Holstedt, A Professional Corporation's NAICS code is 54111 (Offices of Lawyers).

Insights

Cybersecurity Needs Mastagni Holstedt has experienced a significant ransomware attack by the Black Basta group in September 2025, highlighting an urgent need for enhanced cybersecurity solutions, data protection, and disaster recovery services.

Legal Tech Adoption The firm utilizes advanced digital tools such as Google Analytics, Microsoft, and Adobe Creative Suite, indicating a focus on modern technology adoption which could be expanded with innovative legal tech solutions, automation, and AI-driven legal analytics.

Growth Potential With a revenue range of 25 to 50 million dollars and a staff of up to 200 employees, Mastagni Holstedt represents a sizable client opportunity for services that support operational efficiency, practice management, and scalable growth strategies.

Client Engagement As a law firm serving diverse clients across California, there is potential for tailored legal service platforms, client management tools, and engagement solutions that enhance client experience and retention.

Industry Positioning Compared to larger firms like Davis Wright Tremaine, Mastagni Holstedt’s focus on civil law presents opportunities for niche legal marketing, specialized service offerings, and competitive differentiation within the California legal market.

Similar companies to Mastagni Holstedt, A Professional Corporation

Mastagni Holstedt, A Professional Corporation Tech Stack

Mastagni Holstedt, A Professional Corporation uses 8 technology products and services including Cloudflare CDN, Cloudflare, Lazy.js, and more. Explore Mastagni Holstedt, A Professional Corporation's tech stack below.

Cloudflare CDN
Content Delivery Network
Cloudflare
Content Management System
Lazy.js
Javascript Frameworks
Microsoft
Miscellaneous
Google Tag Manager
Tag Management
Adobe Creative Suite
Visualisation Software
Piwik PRO Core
Web Analytics
Google Analytics
Web Analytics

Media & News

Mastagni Holstedt, A Professional Corporation had issues with devastating ransomware attack on Sep 20th '25.
In early 2023, Mastagni Holstedt, a well-known Sacramento law firm, suffered a devastating ransomware attack by the Black Basta group.
Sep 20, 2025 | esudo.com

Mastagni Holstedt, A Professional Corporation's Email Address Formats

Mastagni Holstedt, A Professional Corporation uses at least 3 format(s):

Mastagni Holstedt, A Professional Corporation Email Formats	Example	Percentage
FLast@mastagni.com	JDoe@mastagni.com	82%
Last@mastagni.com	Doe@mastagni.com	12%
First@mastagni.com	John@mastagni.com	5%
First_Last@mastagni.com	John_Doe@mastagni.com	1%
First@mcc-legal.com	John@mcc-legal.com	100%
First.Last@elizabethtaylor.com	John.Doe@elizabethtaylor.com	75%
FLast@elizabethtaylor.com	JDoe@elizabethtaylor.com	25%

Frequently Asked Questions

Where is Mastagni Holstedt, A Professional Corporation's headquarters located?

Mastagni Holstedt, A Professional Corporation's main headquarters is located at 1912 i Street Sacramento, California 95811 United States. The company has employees across 2 continents, including North AmericaEurope.

What is Mastagni Holstedt, A Professional Corporation's phone number?

You can contact Mastagni Holstedt, A Professional Corporation's main corporate office by phone at

+1-310-207-****

. 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 Mastagni Holstedt, A Professional Corporation's official website and social media links?

Mastagni Holstedt, A Professional Corporation's official website is mastagni.com and has social profiles on LinkedIn.

What is Mastagni Holstedt, A Professional Corporation's SIC code NAICS code?

Mastagni Holstedt, A Professional Corporation's SIC code is 8111 - Legal Services NAICS code is 54111 - Offices of Lawyers.

How many employees does Mastagni Holstedt, A Professional Corporation have currently?

As of April 2026, Mastagni Holstedt, A Professional Corporation has approximately 97 employees across 2 continents, including North AmericaEurope. Key team members include Partner: D. B.Partner: K. M.Partner: P. R. A. M.. Explore Mastagni Holstedt, A Professional Corporation's employee directory with LeadIQ.

What industry does Mastagni Holstedt, A Professional Corporation belong to?

Mastagni Holstedt, A Professional Corporation operates in the Law Practice industry.

What technology does Mastagni Holstedt, A Professional Corporation use?

Mastagni Holstedt, A Professional Corporation's tech stack includes Cloudflare CDNCloudflareLazy.jsMicrosoftGoogle Tag ManagerAdobe Creative SuitePiwik PRO CoreGoogle Analytics.

What is Mastagni Holstedt, A Professional Corporation's email format?

Mastagni Holstedt, A Professional Corporation's email format typically follows the pattern of FLast@mastagni.com. Find more Mastagni Holstedt, A Professional Corporation email formats with LeadIQ.

When was Mastagni Holstedt, A Professional Corporation founded?

Mastagni Holstedt, A Professional Corporation was founded in 1976.

Mastagni Holstedt, A Professional Corporation

Law PracticeCalifornia, United States51-200 Employees

For more than four decades, the California law firm of Mastagni Holstedt, A Professional Corporation, has served clients throughout California in a wide range of civil law matters. Our attorneys have earned a reputation for professionalism, sharp legal acumen and the dedicated pursuit of justice. Our clients come from all walks of life but share a common need to have their rights protected at a crucial juncture in their lives. We are honored to be entrusted with the responsibility of being their legal advocates, and we fight vigorously to secure the most favorable outcomes possible.