Insights

Growth potential Mid-sized accounting firm with $25M-$50M revenue and 11-50 employees represents a scalable client profile for added advisory services, including tax planning, outsourced CFO, and digital transformation.

Technology stack Uses a mix of marketing, analytics, and performance tools (Google Ads, Snowplow, Mapbox GL JS, Cloudflare, BootstrapCDN, Open Graph, Font Awesome, Apache) indicating openness to modern tech adoption; opportunity to upsell data analytics, dashboarding, cybersecurity, and cloud-based accounting solutions.

Professional networks Affiliations with AICPA, NYSSCPA and NCCPAP suggest strong compliance framework and peer relationships; leverage for cross-sell to members and align offerings with industry standards and continuing education programs.

Competitive landscape Positioned among large regional firms with substantial revenue ranges; potential to differentiate with personalized client service, niche industry focus, and scalable fractional CFO services to capture mid-market clients seeking agility.

Expansion opportunities Existing footprint in Melville, NY; consider regional growth via targeted outbound campaigns to similar-sized firms in the Northeast, offering scalable outsourcing, tax optimization, and cloud-enabled accounting transformations.

Diapoules & Feinstein Tech Stack

Diapoules & Feinstein uses 8 technology products and services including Google Ads, Snowplow, jsDelivr, and more. Explore Diapoules & Feinstein's tech stack below.

  • Google Ads
    Advertising
  • Snowplow
    Analytics
  • jsDelivr
    Content Delivery Network
  • Cloudflare
    Content Management System
  • Duda
    Content Management System
  • Google Fonts API
    Font Scripts
  • Google Maps
    Maps
  • Nginx
    Web Servers

Diapoules & Feinstein's Email Address Formats

Diapoules & Feinstein uses at least 1 format(s):
Diapoules & Feinstein Email FormatsExamplePercentage
FL@dfcpaonline.comJD@dfcpaonline.com
50%
FLast@dfcpaonline.comJDoe@dfcpaonline.com
32%
Last@dfcpaonline.comDoe@dfcpaonline.com
12%
First.Last@dfcpaonline.comJohn.Doe@dfcpaonline.com
6%

Frequently Asked Questions

What is Diapoules & Feinstein's phone number?

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You can contact Diapoules & Feinstein'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 Diapoules & Feinstein's official website and social media links?

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Diapoules & Feinstein's official website is dfcpaonline.com and has social profiles on LinkedIn.

How much revenue does Diapoules & Feinstein generate?

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As of August 2026, Diapoules & Feinstein's annual revenue is estimated to be $10M - $25M.

What is Diapoules & Feinstein's SIC code NAICS code?

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Diapoules & Feinstein's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Diapoules & Feinstein have currently?

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As of August 2026, Diapoules & Feinstein has approximately 24 employees across 1 continents, including North America. Key team members include Office Administrator: S. T.. Explore Diapoules & Feinstein's employee directory with LeadIQ.

What industry does Diapoules & Feinstein belong to?

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Diapoules & Feinstein operates in the Accounting industry.

What technology does Diapoules & Feinstein use?

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Diapoules & Feinstein's tech stack includes Google AdsSnowplowjsDelivrCloudflareDudaGoogle Fonts APIGoogle MapsNginx.

What is Diapoules & Feinstein's email format?

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Diapoules & Feinstein's email format typically follows the pattern of FL@dfcpaonline.com. Find more Diapoules & Feinstein email formats with LeadIQ.

When was Diapoules & Feinstein founded?

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Diapoules & Feinstein was founded in 1989.
Diapoules & Feinstein logo

Diapoules & Feinstein

AccountingNew York, United States11-50 Employees

Diapoules & Feinstein is a full-service certified public accounting firm based in Melville, New York. It is affiliated with professional bodies including the AICPA, NYSSCPA and NCCPAP, signaling adherence to established accounting standards. The firm provides accounting, tax and financial services designed to address clients' concerns at a high professional level.

The firm emphasizes careful attention to detail and a client-focused approach, with CPAs taking the time needed to support business success. Serving a small to mid-sized client base, it targets businesses seeking thorough accounting and tax guidance within the accounting industry.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1989
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Diapoules & Feinstein's revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $10M - $25M

    Diapoules & Feinstein's revenue is estimated to be in the range of $10M - $25M

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