Insights

Growth and Market Mid-sized NY-based accounting firm with revenue in the 10-25M range and a focus on privately held businesses, executives, and high net worth individuals.Opportunity for cross-sell of audit, tax, and advisory services to construction, manufacturing, distribution, and real estate clients expanding in the New York Metropolitan area.

Technology Enablement Tech stack includes Wix, React, Google Cloud and analytics tools.Potential to offer modernized finance tech integration, cloud-based accounting workflows, and data analytics services to improve client efficiency and decision-making.

Growth Readiness Established since 1991 with a tailored, proactive consulting approach.Potential to position CKC as a strategic partner for growth planning, succession, and private client wealth management services.

Industry Focus Industries served include construction, manufacturing, distribution, and real estate.Opportunity to deepen industry-specific advisory, internal controls, and compliance services tailored to these sectors.

Staffing and Scale 11-50 employees with membership in AICPA Private Company Practice Section.Potential to offer scalable solutions for growing firms, including outsourced accounting, payroll, and CFO/Controller services to meet expansion needs.

CASTELLANO, KORENBERG & CO Tech Stack

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

Wix

Content Management System

Webpack

Development

Google Cloud

Infrastructure As A Service

RequireJS

Javascript Frameworks

TweenMax

Javascript Frameworks

WP Engine

Platform As A Service

Google Tag Manager

Tag Management

Google Analytics

Web Analytics

CASTELLANO, KORENBERG & CO Email Formats	Example	Percentage
FLast@ck-co.com	JDoe@ck-co.com	100%
FLast@castellanokorenberg.com	JDoe@castellanokorenberg.com	100%

CASTELLANO, KORENBERG & CO Email Formats

Example

Percentage

FLast@ck-co.com

JDoe@ck-co.com

100%

FLast@castellanokorenberg.com

JDoe@castellanokorenberg.com

100%

Frequently Asked Questions

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

You can contact CASTELLANO, KORENBERG & CO's main corporate office by phone at

+1-516-937-****

. 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?

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

How much revenue does CASTELLANO, KORENBERG & CO generate?

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

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

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

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

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?

CASTELLANO, KORENBERG & CO operates in the Accounting industry.

What technology does CASTELLANO, KORENBERG & CO use?

CASTELLANO, KORENBERG & CO's tech stack includes WixWebpackGoogle CloudRequireJSTweenMaxWP EngineGoogle Tag ManagerGoogle Analytics.

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

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?

CASTELLANO, KORENBERG & CO was founded in 1991.

CASTELLANO, KORENBERG & CO

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

CASTELLANO, KORENBERG & CO has approximately 30 employees.

Q: What technology does CASTELLANO, KORENBERG & CO use?

CASTELLANO, KORENBERG & CO's tech stack includes jQuery, MySQL, Google Analytics, Lodash, Webpack.

Q: What is CASTELLANO, KORENBERG & CO's NAICS code?

CASTELLANO, KORENBERG & CO's NAICS code is 5412 (Accounting, Tax Preparation, Bookkeeping, and Payroll Services).

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).

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