Insights

Target Federal Agencies Castro & Company specializes in providing audit and advisory services to Federal government agencies, indicating a strong potential for partnerships with technology and service providers looking to expand into government contracting or enhance compliance and internal controls for federal clients.

Mid-sized Growth Potential With revenue between 100M and 250M and a dedicated team of up to 200 employees, Castro & Company represents a growing mid-sized firm that may be seeking advanced technological solutions, specialized advisory services, or strategic partnerships to scale operations and improve service delivery.

Strong Quality Assurance Having received a pass rating with no management comments on its internal quality controls, the firm demonstrates high standards of compliance and operational excellence, making it an attractive candidate for value-added services that enhance quality management and process improvement.

Technology Adoption The firm's use of various tech tools like Alteryx, React, and Microsoft suggests openness to innovative solutions. This indicates opportunities for vendors offering data analytics, automation, or client engagement platforms to support their analytics and client service capabilities.

Competitive Positioning As a smaller, client-focused alternative to large firms like EY and Deloitte, Castro & Company may benefit from specialized services that enhance its personalized approach, such as customer relationship management solutions, marketing strategies, or niche technological upgrades tailored to mid-sized accounting and auditing firms.

Castro & Company Tech Stack

Castro & Company uses 8 technology products and services including Alteryx, Open Graph, Shopify, and more. Explore Castro & Company's tech stack below.

  • Alteryx
    Advanced Analytics And Data Science
  • Open Graph
    Content Management System
  • Shopify
    E-commerce
  • React
    Javascript Frameworks
  • Modernizr
    Javascript Libraries
  • Lodash
    Javascript Libraries
  • Microsoft
    Miscellaneous
  • X-XSS-Protection
    Security

Media & News

Castro & Company's Email Address Formats

Castro & Company uses at least 1 format(s):
Castro & Company Email FormatsExamplePercentage
FLast@castroco.comJDoe@castroco.com
48%
First.Last@castroco.comJohn.Doe@castroco.com
2%
FLast@castroco.comJDoe@castroco.com
48%
First.Last@castroco.comJohn.Doe@castroco.com
2%

Frequently Asked Questions

Where is Castro & Company's headquarters located?

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Castro & Company's main headquarters is located at 1635 King Street, Alexandria, VA 22314, US. The company has employees across 5 continents, including North AmericaAsiaSouth America.

What is Castro & Company's phone number?

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You can contact Castro & Company'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 & Company's official website and social media links?

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Castro & Company's official website is castroco.com and has social profiles on LinkedIn.

How much revenue does Castro & Company generate?

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As of October 2025, Castro & Company's annual revenue is estimated to be $540K.

What is Castro & Company's SIC code NAICS code?

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Castro & Company'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 & Company have currently?

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As of October 2025, Castro & Company has approximately 140 employees across 5 continents, including North AmericaAsiaSouth America. Key team members include Chief Executive Officer: D. B.Managing Partner: T. C.Partner: M. S.. Explore Castro & Company's employee directory with LeadIQ.

What industry does Castro & Company belong to?

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Castro & Company operates in the Accounting industry.

What technology does Castro & Company use?

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Castro & Company's tech stack includes AlteryxOpen GraphShopifyReactModernizrLodashMicrosoftX-XSS-Protection.

What is Castro & Company's email format?

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Castro & Company's email format typically follows the pattern of FLast@castroco.com. Find more Castro & Company email formats with LeadIQ.

When was Castro & Company founded?

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Castro & Company was founded in 2004.

Castro & Company

AccountingUnited States51-200 Employees

Castro & Company is an audit, advisory, and accounting services CPA Firm specializing in providing the full resources and quality expected from a larger CPA firm while not compromising in providing the personalized services of a smaller, more client-focused firm.

Our management team and staff have the dedication, knowledge, and trust to be a full-service firm offering a complete range of audit, advisory, and accounting services for Federal government agencies. Our corporate philosophy is based on partnering with our clients and acting as a trusted and value-added advisor always keeping independence in mind where applicable. We work with clients not only to complete the work that is requested but also to provide our ideas, recommendations, and experiences to bring about internal control process improvements that will be beneficial to the mission of the organization.

Castro & Company received a pass rating with no management comments on our system of internal quality controls from our most recent peer review certified by the Virginia Society of CPAs Peer Review Committee in February 2023.

You will not find a firm that is more responsive and dedicated to meeting your needs!

Section iconCompany Overview

Headquarters
1635 King Street, Alexandria, VA 22314, US
Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
2004
Employees
51-200

Section iconMedia & News

Section iconFunding & Financials

  • $100M$250M

    Castro & Company's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    Castro & Company's revenue is estimated to be in the range of $100M$250M

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