Insights

AI Powered Advisory Wiss leverages AI and data analytics to deliver faster, smarter financial insights for middle-market clients, presenting a strong opportunity to target firms seeking modern accounting and advisory capabilities beyond traditional compliance.

ERP Integrations Strategic ERP and NetSuite integration partnerships with Netgain and Rillet position Wiss to offer cutting-edge financial visibility and streamlined operations, enabling cross-sell of ERP-based back-office solutions and ongoing advisory services.

Credibility & Growth Recognition as IPA Top 100 Firm and other industry accolades signals credibility and growth momentum, making Wiss a compelling partner for mid-market firms prioritizing scale, reliability, and proven performance.

Thought Leadership Active thought leadership through a dedicated AI in accounting podcast and a financial literacy video series provides a scalable source of prospect education and lead nurturing.

Family Office Solutions A diversified service mix that includes family office and wealth management complements core accounting and advisory work, creating cross-sell opportunities with family-owned and investor-backed businesses.

Wiss Tech Stack

Wiss uses 8 technology products and services including Trident AB, Adobe, WP Rocket, and more. Explore Wiss's tech stack below.

  • Trident AB
    A/B Testing
  • Adobe
    Audio, Video, Graphics
  • WP Rocket
    Caching
  • Microsoft SQL Server
    Database
  • Microsoft Excel
    Editors
  • Deltek Vision
    Enterprise Resource Planning
  • Adobe Creative Suite
    Visualisation Software
  • Microsoft IIS
    Web Servers

Media & News

Wiss's Email Address Formats

Wiss uses at least 1 format(s):
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

Where is Wiss's headquarters located?

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Wiss's main headquarters is located at 352 Park Avenue South 9th Floor New York, New York 10010 United States. The company has employees across 4 continents, including North AmericaEuropeAsia.

What is Wiss's phone number?

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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?

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

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

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Wiss's official website is wiss.com and has social profiles on LinkedIn.

What is Wiss's NAICS code?

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

How many employees does Wiss have currently?

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As of June 2026, Wiss has approximately 554 employees across 4 continents, including North AmericaEuropeAsia. Key team members include Ceo & Managing Partner: P. P.Cfo Advisory Staff Associate: G. G.Chief People Officer: L. D.. Explore Wiss's employee directory with LeadIQ.

What industry does Wiss belong to?

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Wiss operates in the Accounting industry.

What technology does Wiss use?

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Wiss's tech stack includes Trident ABAdobeWP RocketMicrosoft SQL ServerMicrosoft ExcelDeltek VisionAdobe Creative SuiteMicrosoft IIS.

What is Wiss's email format?

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

When was Wiss founded?

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Wiss was founded in 1969.

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

Headquarters
352 Park Avenue South 9th Floor New York, New York 10010 United States
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

  • $250M$500M

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

Section iconFunding & Financials

  • $250M$500M

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

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