Insights

Client Focus Private companies, executives, and high net worth individuals in the New York Metropolitan area represent a target client base with needs across audit, tax, and consulting services. There is an opportunity to upsell advisory offerings and industry-specific solutions (construction, manufacturing, distribution, and real estate) to deepen engagement and cross-sell services.

Mid-Market Momentum Annual revenue in the 10M–25M range and a headcount of 11–50 indicate a growing mid-market firm with potential for scalable service lines, including outsourced accounting, internal controls, and tax planning for privately held businesses looking to professionalize finance operations.

Technology Leverage Current tech stack includes cloud, analytics, and web technologies (Google Cloud, Google Analytics, Tag Manager, Wix, WP Engine). There is a sales opportunity to present modernization audits, data analytics enhanced BI reporting, and cloud-based finance solutions to improve efficiency and client insights.

Industry Expertise Specialization in construction, manufacturing, distribution, and real estate aligns with common growth sectors in New York. Propose sector-focused services such as project-based cost accounting, compliance, R&D tax credits, and real estate entity structuring to capture advisory demand.

Growth Readiness Membership in AICPA Private Company Practice Section signals professional standards and growth aspirations. Target expansion engagements, such as scale-up financial controls, CFO advisory, and multi-state tax compliance, to align with expansion plans and potential acquisitions.

Similar companies to CASTELLANO, KORENBERG & CO

CASTELLANO, KORENBERG & CO Tech Stack

CASTELLANO, KORENBERG & CO uses 8 technology products and services including Wix, WordPress, Google Fonts API, and more. Explore CASTELLANO, KORENBERG & CO's tech stack below.

  • Content Management System
  • Content Management System
  • Google Fonts API
    Font Scripts
  • Infrastructure As A Service
  • RequireJS
    Javascript Frameworks
  • Platform As A Service
  • Google Analytics
    Web Analytics
  • Nginx
    Web Servers

CASTELLANO, KORENBERG & CO's Email Address Formats

CASTELLANO, KORENBERG & CO uses at least 2 email formats:
CASTELLANO, KORENBERG & CO Email FormatsExamplePercentage
FLast@ck-co.comJDoe@ck-co.com
100%
FLast@castellanokorenberg.comJDoe@castellanokorenberg.com
100%

Frequently Asked Questions

What is CASTELLANO, KORENBERG & CO's phone number?

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You can contact CASTELLANO, KORENBERG & CO'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 CASTELLANO, KORENBERG & CO's official website and social media links?

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CASTELLANO, KORENBERG & CO's official website is castellanokorenberg.com and has social profiles on LinkedIn.

How much revenue does CASTELLANO, KORENBERG & CO generate?

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As of July 2026, CASTELLANO, KORENBERG & CO's annual revenue is estimated to be $10M - $25M.

What is CASTELLANO, KORENBERG & CO's SIC code and NAICS code?

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CASTELLANO, KORENBERG & CO's SIC code is 7389 - Business Services, Not Elsewhere Classified and NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does CASTELLANO, KORENBERG & CO have currently?

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As of July 2026, CASTELLANO, KORENBERG & CO has approximately 30 employees across 1 continents, including North America. Key team members include President: B. G. Explore CASTELLANO, KORENBERG & CO's employee directory with LeadIQ.

What industry does CASTELLANO, KORENBERG & CO belong to?

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CASTELLANO, KORENBERG & CO operates in the Accounting industry.

What technology does CASTELLANO, KORENBERG & CO use?

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CASTELLANO, KORENBERG & CO's tech stack includes Wix, WordPress, Google Fonts API, Google Cloud, RequireJS, WP Engine, Google Analytics and Nginx.

What is CASTELLANO, KORENBERG & CO's email format?

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CASTELLANO, KORENBERG & CO's email format typically follows the pattern of FLast@ck-co.com. Find more CASTELLANO, KORENBERG & CO email formats with LeadIQ.

When was CASTELLANO, KORENBERG & CO founded?

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CASTELLANO, KORENBERG & CO was founded in 1991.
CASTELLANO, KORENBERG & CO logo

CASTELLANO, KORENBERG & CO

AccountingNew York, United States11-50 Employees

Castellano, Korenberg & Co is a mid-sized accounting firm based in Melville, New York, serving clients across the New York metropolitan area. Founded in 1991, the firm provides audit, tax, and consulting services to privately held businesses, executives, and high net worth individuals throughout the region.

Its industry focus includes construction, manufacturing and distribution, and real estate, with an emphasis on practical, proactive guidance that complements traditional accounting work. The firm aims to deliver customized, personalized attention through its professionals and is a member of the Private Company Practice Section of the American Institute of Certified Public Accountants (AICPA).

Section iconCompany Overview

Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1991
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    CASTELLANO, KORENBERG & CO's revenue is estimated to be in the range of $10M - $25M

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