Insights

SMB Growth Mid-sized CPA firm in the Attleboro area with 11-50 employees and revenue in the 10-25M range presents opportunities to upsell advisory, tax planning, and outsourced controller services to regional businesses seeking scalable financial support.

Tech Enablement Utilizes modern tools like Office 365, Google Maps, Vue.js and Laravel, suggesting openness to digital transformation services such as cloud-based workflow optimization, data automation, and security hardening packages for small to mid-market clients.

Tax & Compliance Longstanding firm since 1972 with a broad service mix in accounting, financial and tax services; potential cross-sell of tax planning, audit readiness, and fiduciary/estate planning to maintain client retention and capture additional revenue per client.

Regional Footprint Serving business and individuals in the greater Attleboro area indicates a local growth play and cross-sell opportunities with nearby SMBs, nonprofits, and professional services firms needing reliable regional accounting support.

Competitive Positioning Entered market alongside larger firms with substantial scale; position as personalized, local CPA option offers a lead-in for services such as outsourced accounting, financial analysis, and advisory services aimed at firms seeking value-driven partnerships rather than cost-based pricing.

Castro, Thresher & Oliveira, PC Tech Stack

Castro, Thresher & Oliveira, PC uses 8 technology products and services including jsDelivr, Vue.js, Polyfill, and more. Explore Castro, Thresher & Oliveira, PC's tech stack below.

  • jsDelivr
    Content Delivery Network
  • Vue.js
    Javascript Frameworks
  • Polyfill
    Javascript Libraries
  • Google Maps
    Maps
  • Office 365
    Office Suites
  • HSTS
    Security
  • Google Tag Manager
    Tag Management
  • Laravel
    Web Frameworks

Castro, Thresher & Oliveira, PC's Email Address Formats

Castro, Thresher & Oliveira, PC uses at least 1 format(s):
Castro, Thresher & Oliveira, PC Email FormatsExamplePercentage
FLast@ctocpa.comJDoe@ctocpa.com
86%
Last@ctocpa.comDoe@ctocpa.com
7%
First.Last@ctocpa.comJohn.Doe@ctocpa.com
7%

Frequently Asked Questions

What is Castro, Thresher & Oliveira, PC's phone number?

Minus sign iconPlus sign icon
You can contact Castro, Thresher & Oliveira, PC'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 Castro, Thresher & Oliveira, PC's official website and social media links?

Minus sign iconPlus sign icon
Castro, Thresher & Oliveira, PC's official website is ctocpa.com and has social profiles on LinkedIn.

How much revenue does Castro, Thresher & Oliveira, PC generate?

Minus sign iconPlus sign icon
As of July 2026, Castro, Thresher & Oliveira, PC's annual revenue is estimated to be $10M - $25M.

What is Castro, Thresher & Oliveira, PC's SIC code NAICS code?

Minus sign iconPlus sign icon
Castro, Thresher & Oliveira, PC'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 Castro, Thresher & Oliveira, PC have currently?

Minus sign iconPlus sign icon
As of July 2026, Castro, Thresher & Oliveira, PC has approximately 11 employees across 1 continents, including North America. Key team members include Business Owner: J. B.. Explore Castro, Thresher & Oliveira, PC's employee directory with LeadIQ.

What industry does Castro, Thresher & Oliveira, PC belong to?

Minus sign iconPlus sign icon
Castro, Thresher & Oliveira, PC operates in the Accounting industry.

What technology does Castro, Thresher & Oliveira, PC use?

Minus sign iconPlus sign icon
Castro, Thresher & Oliveira, PC's tech stack includes jsDelivrVue.jsPolyfillGoogle MapsOffice 365HSTSGoogle Tag ManagerLaravel.

What is Castro, Thresher & Oliveira, PC's email format?

Minus sign iconPlus sign icon
Castro, Thresher & Oliveira, PC's email format typically follows the pattern of FLast@ctocpa.com. Find more Castro, Thresher & Oliveira, PC email formats with LeadIQ.

When was Castro, Thresher & Oliveira, PC founded?

Minus sign iconPlus sign icon
Castro, Thresher & Oliveira, PC was founded in 1971.
Castro, Thresher & Oliveira, PC logo

Castro, Thresher & Oliveira, PC

AccountingMassachusetts, United States11-50 Employees

Castro, Thresher & Oliveira, PC operates as a certified public accounting firm in the greater Attleboro area of Massachusetts. It provides a broad range of accounting, financial, and tax services to both business clients and individuals. The firm was founded in 1972 and has a long-standing tradition of delivering reliable service.

The practice is a mid-sized firm within the accounting industry, emphasizing professional and dependable client support. Its local footprint and multi-decade presence position it as a regional CPA resource for clients in the Attleboro area. The organization underscores its commitment to service quality as part of its established history.

Section iconCompany Overview

Phone number
Website
ctocpa.com
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1971
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Castro, Thresher & Oliveira, PC's revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $10M - $25M

    Castro, Thresher & Oliveira, PC's revenue is estimated to be in the range of $10M - $25M

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.