Insights

Growth Capital Stephano Slack recently secured a strategic growth investment from Madison Dearborn Partners with co-investor Norlantic Capital, signaling an active expansion phase and a readiness to pursue larger client engagements and cross-sell advisory services.

Expansion Momentum The firm has expanded its Philadelphia footprint and entered New Jersey through combinations, creating opportunities to upsell multi-state accounting, tax, and advisory services to mid-market clients seeking integrated regional support.

Leadership Elevation Appointment of an Executive Chairman and a new Partner and Practice Leader for Human Resources Advisory Services indicates a strategic shift toward enhanced service lines and enterprise-level client opportunities that can benefit from advisory expertise and scalable solutions.

Talent & Culture Recognition as a Best Places to Work and Top Workplaces points to strong employee engagement assets that can be leveraged in sales conversations to reassure prospective clients about stable teams, service continuity, and hiring assistance for their own growth plans.

Digital & Platform A tech-enabled operation using QuickBooks Online, Microsoft 365, Google Workspace, and a presence across WordPress and enterprise tooling suggests opportunities to offer cloud-first, integrated financial systems implementations, workflow automation, and data analytics services to middle-market firms.

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Stephano Slack LLC Tech Stack

Stephano Slack LLC uses 8 technology products and services including UserWay, Quickbooks Online, iCIMS, and more. Explore Stephano Slack LLC's tech stack below.

Media & News

Stephano Slack LLC's Email Address Formats

Stephano Slack LLC uses at least 4 email formats:
Stephano Slack LLC Email FormatsExamplePercentage
FLast@stephanoslack.comJDoe@stephanoslack.com
89%
First.Last@stephanoslack.comJohn.Doe@stephanoslack.com
8%
Last@stephanoslack.comDoe@stephanoslack.com
2%
LFirst@stephanoslack.comDJohn@stephanoslack.com
1%

Frequently Asked Questions

What is Stephano Slack LLC's phone number?

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You can contact Stephano Slack LLC'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 Stephano Slack LLC's official website and social media links?

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Stephano Slack LLC's official website is stephanoslack.com and has social profiles on LinkedIn.

How much revenue does Stephano Slack LLC generate?

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As of September 2026, Stephano Slack LLC's annual revenue is estimated to be $100M - $250M.

What is Stephano Slack LLC's SIC code and NAICS code?

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Stephano Slack LLC's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services and NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Stephano Slack LLC have currently?

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As of September 2026, Stephano Slack LLC has approximately 124 employees across 4 continents, including North America, Asia and Europe. Key team members include Manager: D. C., Senior Auditor: A. I. and Staff Accountant: C. H. Explore Stephano Slack LLC's employee directory with LeadIQ.

What industry does Stephano Slack LLC belong to?

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Stephano Slack LLC operates in the Accounting industry.

What technology does Stephano Slack LLC use?

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Stephano Slack LLC's tech stack includes UserWay, Quickbooks Online, iCIMS, WordPress, Google Workspace, Microsoft 365, WP Engine and Piwik PRO Core.

What is Stephano Slack LLC's email format?

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Stephano Slack LLC's email format typically follows the pattern of FLast@stephanoslack.com. Find more Stephano Slack LLC email formats with LeadIQ.
Stephano Slack LLC logo

Stephano Slack LLC

AccountingPennsylvania, United States51-200 Employees

Stephano Slack LLC is a regional CPA firm that serves privately owned middle-market companies with accounting, tax, and advisory guidance designed to support growth and profitability. Based in Wayne, Pennsylvania, the firm emphasizes timely financial information and strategic counsel to help clients achieve their objectives. In recognition of workplace culture and talent, the firm was named a Best Places to Work in 2022 and a Top Workplaces 2022 by the Philadelphia region publications. 

 The firm has expanded its footprint in the Greater Philadelphia area and into New Jersey through combinations that broaden resources while preserving close client service. In early 2026, Stephano Slack announced leadership changes, including appointing Jim Brady as Executive Chairman. The organization has also pursued mergers and partnerships with local practices, including Klacpa and Boyer & Boyer CPA and Kimmel, Lorah & Associates, as part of its expansion.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Employees
51-200

Section iconFunding & Financials

  • $100M - $250M

    Stephano Slack LLC's revenue is estimated to be in the range of $100M - $250M

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