Insights

Market Expansion Mid-sized CPA firm with a regional footprint has growth opportunities by expanding outsourced CFO, advisory, and tax planning services to small and medium-sized businesses in Massachusetts, leveraging existing client relationships for cross-sell.

Digital Presence Active use of modern web technologies indicates openness to digital marketing and analytics; leverage SEO, CRM, and client portal enhancements to attract and retain clients and improve service delivery.

Local Focus Strong local Attleboro area presence provides a differentiator for personalized service and local regulatory knowledge; target family-owned and regional SMBs in nearby communities as a core growth engine.

Service Diversification Broad accounting, financial, and tax service offerings create cross-sell opportunities for recurring advisory, planning, and outsourced bookkeeping or CFO services to growing clients.

Competitive Positioning Position the firm as a responsive, partner-driven alternative to large national firms; emphasize value, transparency, and local expertise to win SMB clients seeking tailored service.

Castro, Thresher & Oliveira, PC Tech Stack

Castro, Thresher & Oliveira, PC uses 8 technology products and services including Google Hosted Libraries, BootstrapCDN, Vue.js, and more. Explore Castro, Thresher & Oliveira, PC's tech stack below.

  • Google Hosted Libraries
    Content Delivery Network
  • BootstrapCDN
    Content Delivery Network
  • Vue.js
    Javascript Frameworks
  • Polyfill
    Javascript Libraries
  • AOS
    Javascript Libraries
  • Google Maps
    Maps
  • Google Tag Manager
    Tag Management
  • Livewire
    Web Frameworks

Media & News

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

Where is Castro, Thresher & Oliveira, PC's headquarters located?

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Castro, Thresher & Oliveira, PC's main headquarters is located at 1382 County Street Attleboro, Massachusetts 02703 United States. The company has employees across 1 continents, including North America.

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

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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?

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

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

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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?

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As of June 2026, Castro, Thresher & Oliveira, PC has approximately 11 employees across 1 continents, including North America. Key team members include Partner: M. C.Cpa/Partner: P. R. O.Business Owner: J. B.. Explore Castro, Thresher & Oliveira, PC's employee directory with LeadIQ.

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

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Castro, Thresher & Oliveira, PC operates in the Accounting industry.

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

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Castro, Thresher & Oliveira, PC's tech stack includes Google Hosted LibrariesBootstrapCDNVue.jsPolyfillAOSGoogle MapsGoogle Tag ManagerLivewire.

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

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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?

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Castro, Thresher & Oliveira, PC was founded in 1971.

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

Headquarters
1382 County Street Attleboro, Massachusetts 02703 United States
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 iconMedia & News

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

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