Multithread effectively and personalize outreach to convert deals faster
Elevate social presence and drive business growth from social media
Identify and prioritize high-intent leads, and improve sales effectiveness
Find and connect with ICP attendees, and improve event outcomes
WithumSmith+Brown, PC (Withum) is a nationally recognized public accounting and advisory firm. With a forward-thinking, technology-driven approach, Withum provides a comprehensive suite of services including audit, tax, advisory, and digital transformation solutions to a diverse clientele ranging from privately-held businesses and high-net-worth individuals to publicly traded companies and not-for-profit organizations. The firm is committed to delivering innovative solutions and exceptional client service, fostering a culture of 'The Withum Way' which emphasizes passion, innovation, community, and excellence.
Serves as the central administrative and operational hub for the firm, coordinating national strategies, firm-wide initiatives, and providing support for its numerous offices.
Modern office facilities designed to foster collaboration and innovation, equipped with advanced technology infrastructure to support its advisory and digital services.
The East Hanover office embodies 'The Withum Way,' characterized by a dynamic, collaborative, and client-focused environment. It promotes professional growth, teamwork, and a commitment to community involvement.
As the National Office, it plays a pivotal role in driving the firm's growth, maintaining service quality standards, and shaping the overall corporate culture.
While Withum's direct offices are primarily located within the United States, the firm possesses a significant global reach through its independent membership in HLB International. HLB is a dynamic global network of independent advisory and accounting firms, with presence in approximately 157 countries. This affiliation allows Withum to seamlessly serve clients with international operations, providing access to local expertise and insights across the globe for services such as international tax, transfer pricing, cross-border M&A, and global compliance.
One Mayfair Road
East Hanover
NJ
USA
Address: 1411 Broadway, 9th Floor, New York, NY 10018
To cater to the extensive and complex needs of businesses and high-net-worth individuals in one of the world's leading financial centers, leveraging local expertise and industry specialization.
Address: 200 S Orange Ave, Suite 1200, Orlando, FL 32801
To support the growing business community in Central Florida, providing localized expertise and access to Withum's national resources.
Address: 200 Presidential Way, Suite 320, Woburn, MA 01801
To provide specialized accounting and advisory services to the innovative and established businesses in the Boston metropolitan region and broader New England.
Address: 200 Spectrum Center Drive, Suite 1000, Irvine, CA 92618
To support the vibrant business ecosystem in Southern California, offering specialized advisory services and tapping into the region's innovation hubs.
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
As of April 2025, Withum' leadership includes:
Withum has been backed by several prominent investors over the years, including:
The most significant executive change in the last 12-18 months was the transition of Pat Walsh to Managing Partner and CEO, effective July 1, 2023, succeeding Bill Hagaman. The firm also announced a substantial class of new partners and principals in January 2024, underscoring its growth and leadership development. Specific numbers for all executive-level hires/exits across the firm are not typically disclosed publicly in a consolidated manner beyond these major announcements.
Discover the tools Withum uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
WithumSmith+Brown (Withum) commonly uses a few standard email formats for its employees. The most prevalent formats are typically a combination of the employee's first initial and last name, or first name and last name, followed by '@withum.com'.
Common formats include [first_initial][last]@withum.com (e.g., jsmith@withum.com) and [first].[last]@withum.com (e.g., john.smith@withum.com).
Format
jsmith@withum.com
Example
85%
Success rate
BusinessWire • November 1, 2023
Withum announced its merger with The Vesta Group, a tax and wealth advisory firm based in Lake Oswego, Oregon. This strategic combination, effective November 1, 2023, expands Withum's footprint in the Pacific Northwest and enhances its advisory service offerings....more
Cision PR Newswire / Withum.com • January 8, 2024
WithumSmith+Brown, PC (Withum) announced the promotion of 20 team members to Partner and Principal, effective January 1, 2024. These promotions span various service lines and industries, reflecting the firm's growth and commitment to developing talent from within....more
Withum.com / Accounting Today • July 1, 2023
Withum announced that Pat Walsh has taken office as the firm's Managing Partner and CEO, effective July 1, 2023. He succeeds Bill Hagaman, who transitioned to the role of Chairman Emeritus after leading the firm for 13 years and overseeing significant growth....more
See where a company’s workforce is located, by country or region.
View past and recent funding rounds with amounts and investors.
Understand company revenue estimates and financial scale.
Track active roles and hiring trends to spot growth signals.
Discover what a company offers—products, platforms, and solutions.
Get the company’s official SIC and NAICS classifications.
Analyze visitor volume, engagement, and top traffic sources.
Explore LinkedIn, Twitter, and other active social profiles.
Identify top competitors based on similar business traits.
Explore companies in depth — from the tech they use to recent funding, hiring trends, and buyer signals — all in one powerful view.
Highperformr AI helps you surface the right accounts and enrich your CRM with verified company and contact insights, so your teams can prioritize and engage faster.
Thousands of companies, including Withum, are just a search away.