Insights

Growth recognition Wiss is recognized among the IPA Top 100 Firms, USA Today’s Most Recommended Firms, and Accounting Today’s Fastest Growing Firms, signaling strong market credibility and a proven track record to leverage when engaging potential clients.

Middle market focus With a stated emphasis on the middle market and services spanning advisory, assurance, and AI powered accounting solutions, Wiss can target mid-sized privately held, investor backed, and family-owned businesses seeking scalable financial infrastructure.

Tech driven The firm deploys advanced analytics and AI driven solutions and has recently integrated AI-native ERP and NetSuite via partnerships, offering a compelling value proposition for prospects pursuing modernization and real time financial visibility.

Expanding capabilities Recent partnerships and tech stack enhancements indicate Wiss is expanding its platform, enabling cross sell across tax, wealth management, family office services, and ERP/asset management, presenting multiple entry points for new client engagements.

Industry engagement Active participation in FinTech awards, educational content like a financial literacy YouTube series, and leadership hires in technology advisory suggest opportunities to position Wiss as a strategic advisor to tech enabled clients and ambitious growth companies.

Similar companies to Wiss

Wiss Tech Stack

Wiss uses 8 technology products and services including Quickbooks Online, Matomo, Microsoft Clarity, and more. Explore Wiss's tech stack below.

Media & News

Wiss's Email Address Formats

Wiss uses at least 3 email formats:
Wiss Email FormatsExamplePercentage
FLast@wiss.comJDoe@wiss.com
81%
First.Last@wiss.comJohn.Doe@wiss.com
14%
Last@wiss.comDoe@wiss.com
5%

Frequently Asked Questions

What is Wiss's phone number?

Minus sign iconPlus sign icon
You can contact Wiss'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 Wiss's stock symbol?

Minus sign iconPlus sign icon
Wiss is a publicly traded company; the company's stock symbol is 0QKI.L.

What is Wiss's official website and social media links?

Minus sign iconPlus sign icon
Wiss's official website is wiss.com and has social profiles on LinkedIn.

How much revenue does Wiss generate?

Minus sign iconPlus sign icon
As of August 2026, Wiss's annual revenue is estimated to be $250M - $500M.

What is Wiss's NAICS code?

Minus sign iconPlus sign icon
Wiss's NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Wiss have currently?

Minus sign iconPlus sign icon
As of August 2026, Wiss has approximately 569 employees across 4 continents, including North America, Europe and Asia. Key team members include Cfo Advisory Staff Associate: G. G., Chief Financial Officer Advisory: B. V. and Vice President Of Sales & Development - Wiss Early Stage: S. C. Explore Wiss's employee directory with LeadIQ.

What industry does Wiss belong to?

Minus sign iconPlus sign icon
Wiss operates in the Accounting industry.

What technology does Wiss use?

Minus sign iconPlus sign icon
Wiss's tech stack includes Quickbooks Online, Matomo, Microsoft Clarity, SOLIDWORKS, Apache Airflow, WordPress, WP Engine and Vimeo.

What is Wiss's email format?

Minus sign iconPlus sign icon
Wiss's email format typically follows the pattern of FLast@wiss.com. Find more Wiss email formats with LeadIQ.

How much funding has Wiss raised to date?

Minus sign iconPlus sign icon
As of August 2026, Wiss has raised $350K in funding. The last funding round occurred on Dec 28, 2023.

When was Wiss founded?

Minus sign iconPlus sign icon
Wiss was founded in 1969.
Wiss logo

Wiss

AccountingNew York, United States501-1000 Employees

Wiss is a full-service accounting and business advisory firm headquartered in New York, New York, at 352 Park Avenue South, 9th Floor, 10010. The firm employs 501 to 1,000 people and concentrates on middle-market clients, offering advisory and assurance services along with advanced accounting solutions powered by AI and data analytics. Founded more than 50 years ago, Wiss serves privately held, investor-backed, and family-run businesses, providing services including accounting, tax strategies, family office services, and wealth management to support growth across the business lifecycle. Wiss has been recognized by IPA Top 100 Firms, USA Today's Most Recommended Firms, and Accounting Today's Fastest Growing Firms, indicating a notable market presence within its sector. The company pursues technology partnerships and AI-enabled solutions, including collaborations with Netgain Solutions to integrate NetAsset within NetSuite and with Rillet, an AI-native ERP platform, to enhance its technology stack.

Section iconCompany Overview

Phone number
Website
wiss.com
Stock Symbol
0QKI.L
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1969
Employees
501-1000

Section iconFunding & Financials

  • $350K

    Wiss has raised a total of $350K of funding over 1 rounds. Their latest funding round was raised on Dec 28, 2023.

  • $250M - $500M

    Wiss's revenue is estimated to be in the range of $250M - $500M

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.