Insights

Mid-Atlantic CPA Source One Business Services is a mid-Atlantic full-service CPA and advisory firm with a multi-disciplinary approach across audit, tax and consulting, presenting cross-sell opportunities for bundled services to privately owned construction, industrial and service clients.

Growth Footprint Established in 1986 and currently serving from Ellicott City, MD, the firm has an experienced base and regional reach that can be leveraged to expand into nearby markets with additional advisory, IT services and financial solutions.

Tech Stack Utilizes a mix of traditional and web technologies (MySQL, RSS, Google Tag Manager, WP Fastest Cache, Microsoft IIS/Apache) which suggests potential for IT audits, cybersecurity, system optimization, data management, and automation-led value-add services for clients.

Revenue Range With annual revenue in the 25 to 50 million range and a 11-50 employee profile, there is capacity for scalable advisory engagements, cloud-based finance/ERP implementations, and outsourced finance or IT services for growing client accounts.

Industry Focus Serving privately owned construction, industrial and service sectors creates opportunities to tailor risk, tax, and operational improvements, as well as digital transformation and IT-enabled processes that address sector-specific pain points.

Source One Business Services Tech Stack

Source One Business Services uses 8 technology products and services including WordPress, MySQL, Really Simple Discovery, and more. Explore Source One Business Services's tech stack below.

  • WordPress
    Content Management System
  • MySQL
    Database
  • Really Simple Discovery
    Miscellaneous
  • Office 365
    Office Suites
  • Google Tag Manager
    Tag Management
  • WP Fastest Cache
    Web Platform Extensions
  • Apache
    Web Servers
  • Apache HTTP Server
    Web Servers

Source One Business Services's Email Address Formats

Source One Business Services uses at least 1 format(s):
Source One Business Services Email FormatsExamplePercentage
FLast@s1services.comJDoe@s1services.com
91%
Last@s1services.comDoe@s1services.com
9%

Frequently Asked Questions

What is Source One Business Services's official website and social media links?

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Source One Business Services's official website is s1services.com and has social profiles on LinkedIn.

How much revenue does Source One Business Services generate?

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As of August 2026, Source One Business Services's annual revenue is estimated to be $25M - $50M.

What is Source One Business Services's SIC code NAICS code?

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Source One Business Services'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 Source One Business Services have currently?

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As of August 2026, Source One Business Services has approximately 40 employees across 3 continents, including North AmericaAsiaEurope. Key team members include Partner: B. B.Owner: T. S.Content Writer: M. S.. Explore Source One Business Services's employee directory with LeadIQ.

What industry does Source One Business Services belong to?

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Source One Business Services operates in the Accounting industry.

What technology does Source One Business Services use?

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Source One Business Services's tech stack includes WordPressMySQLReally Simple DiscoveryOffice 365Google Tag ManagerWP Fastest CacheApacheApache HTTP Server.

What is Source One Business Services's email format?

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Source One Business Services's email format typically follows the pattern of FLast@s1services.com. Find more Source One Business Services email formats with LeadIQ.

When was Source One Business Services founded?

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Source One Business Services was founded in 1986.
Source One Business Services logo

Source One Business Services

AccountingMaryland, United States11-50 Employees

Source One Business Services is a mid-sized firm providing a combination of accounting, business advisory, and information technology services to privately owned companies in the construction, industrial, and service sectors. Its headquarters are in Ellicott City, Maryland, and it serves clients across the mid-Atlantic region. Founded in 1986, the firm combines financial and advisory capabilities to help clients manage business, personal, and financial goals. The practice emphasizes an integrated, consultative approach that centers on problem solving and practical guidance.

Staff members work across audit, tax, and consulting engagements, building broad professional experience and contributing to client service. This cross-disciplinary exposure supports ongoing professional development and a deeper understanding of client needs.

Section iconCompany Overview

SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1986
Employees
11-50

Section iconFunding & Financials

  • $25M - $50M

    Source One Business Services's revenue is estimated to be in the range of $25M - $50M

Section iconFunding & Financials

  • $25M - $50M

    Source One Business Services's revenue is estimated to be in the range of $25M - $50M

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