Insights

Growing SMB Focus System Six serves a small to mid-sized client base with over $200M in annual client revenue and a mix of for-profit and nonprofit organizations, indicating a healthy demand for outsourced finance and accounting services among mid-market firms and mission-driven entities.

Cloud and Remote The firm emphasizes remote, cloud-based services with a modern tech stack, suggesting opportunities to cross-sell higher-value cloud ERP integrations, automation, and advisory services to clients seeking scalable virtual accounting support.

Culture and Talent With a people-first culture and focus on top-tier compensation and growth, System Six may be receptive to partnerships or programs that provide specialized training, certification programs, or outsourced payroll and advisory services for their growing team.

Nonprofit Footprint Clients include millions in nonprofit spend, presenting a strong opening for targeted nonprofit compliance, grant accounting, and fund-management services as a growth vector.

Competitive Position Identified as a modern competitor in the bookkeeping space with a notable online presence and a cited competitor in related domains, indicating a potential market need for differentiated value-adds such as advanced data analytics, automated workflows, and scalable outsourced finance solutions.

System Six Tech Stack

System Six uses 8 technology products and services including BILL, LiteSpeed Cache, LottieFiles, and more. Explore System Six's tech stack below.

  • BILL
    Accounting And Finance
  • LiteSpeed Cache
    Caching
  • LottieFiles
    Design
  • Font Awesome
    Font Scripts
  • Slick
    Javascript Libraries
  • Priority Hints
    Performance
  • YouTube
    Video Players
  • MetaSlider
    Web Platform Extensions

System Six's Email Address Formats

System Six uses at least 1 format(s):
System Six Email FormatsExamplePercentage
First@systemsix.comJohn@systemsix.com
66%
Last@systemsix.comDoe@systemsix.com
25%
First.Last@systemsix.comJohn.Doe@systemsix.com
9%

Frequently Asked Questions

What is System Six's phone number?

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You can contact System Six'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 System Six's official website and social media links?

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System Six's official website is systemsix.com and has social profiles on LinkedIn.

How much revenue does System Six generate?

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As of July 2026, System Six's annual revenue is estimated to be $25M - $50M.

What is System Six's SIC code NAICS code?

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System Six'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 System Six have currently?

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As of July 2026, System Six has approximately 39 employees across 3 continents, including North AmericaAsiaEurope. Key team members include Senior Bookkeeper: K. I. R. F.Principal: A. G.Accountant: J. S.. Explore System Six's employee directory with LeadIQ.

What industry does System Six belong to?

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System Six operates in the Accounting industry.

What technology does System Six use?

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System Six's tech stack includes BILLLiteSpeed CacheLottieFilesFont AwesomeSlickPriority HintsYouTubeMetaSlider.

What is System Six's email format?

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System Six's email format typically follows the pattern of First@systemsix.com. Find more System Six email formats with LeadIQ.

When was System Six founded?

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System Six was founded in 2008.
System Six logo

System Six

AccountingWashington, United States11-50 Employees

System Six is a Seattle-based, remote, cloud-based accounting firm offering outsourced finance and accounting services. It operates with two equal aims: creating rewarding accounting careers for its team and freeing clients to focus on their core work, whether in business, family, or non-profit activities. The firm relies on a team-based service model and a strong emphasis on process to deliver services such as outsourced accounting, bill pay, payroll, and advisory support.

Its client base includes organizations with more than $200 million in annual revenue, more than 1,000 jobs, and significant non-profit spend, reflecting a diverse set of customers. Within the accounting industry, System Six positions itself as a modern firm that handles finance and accounting remotely, supported by a culture focused on learning and growth.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
2008
Employees
11-50

Section iconFunding & Financials

  • $25M - $50M

    System Six's revenue is estimated to be in the range of $25M - $50M

Section iconFunding & Financials

  • $25M - $50M

    System Six's revenue is estimated to be in the range of $25M - $50M

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