Insights

Growth readiness Mid-sized accounting firm with revenue between 50M and 100M and 11-50 employees presents upsell potential for advisory services, outsourced finance, and scalable operations support as client needs expand.

Technology leverage Active tech stack including WordPress, Microsoft 365, Azure, and security tools suggests readiness for digital transformation projects, data analytics, client portals, and security enhancements for clients.

Life stage positioning Brand positioning around accounting for life indicates opportunities to offer personal financial planning, wealth management integration, and cash flow optimization for individuals and family-owned businesses.

Market footprint Revenue scale and competitive landscape with peers like Grant Thornton España and RSM imply potential for cross-sell into mid-market segments, as well as consulting, tax, and audit services to expand footprint.

Growth opportunities Firm size and client-centric messaging point to partnerships for marketing automation, client onboarding improvements, and recurring revenue models via monthly advisory retainers and ongoing compliance services.

Similar companies to G & J Seiberlich & Co LLP

G & J Seiberlich & Co LLP Tech Stack

G & J Seiberlich & Co LLP uses 8 technology products and services including WordPress, Microsoft 365, jQuery UI, and more. Explore G & J Seiberlich & Co LLP's tech stack below.

  • Content Management System
  • jQuery UI
    Javascript Libraries
  • Live Chat
  • Platform As A Service
  • Really Simple SSL & Security
    Security
  • Bootstrap
    UI Frameworks
  • Google Analytics
    Web Analytics

G & J Seiberlich & Co LLP's Email Address Formats

G & J Seiberlich & Co LLP uses at least 4 email formats:
G & J Seiberlich & Co LLP Email FormatsExamplePercentage
First@gjscollp.comJohn@gjscollp.com
55%
First.Last@gjscollp.comJohn.Doe@gjscollp.com
30%
Last@gjscollp.comDoe@gjscollp.com
10%
FirstL@gjscollp.comJohnD@gjscollp.com
5%

Frequently Asked Questions

What is G & J Seiberlich & Co LLP's phone number?

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You can contact G & J Seiberlich & Co LLP'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 G & J Seiberlich & Co LLP's official website and social media links?

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G & J Seiberlich & Co LLP's official website is www.gjs.cpa and has social profiles on LinkedIn.

How much revenue does G & J Seiberlich & Co LLP generate?

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As of September 2026, G & J Seiberlich & Co LLP's annual revenue is estimated to be $50M - $100M.

What is G & J Seiberlich & Co LLP's SIC code and NAICS code?

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G & J Seiberlich & Co LLP's SIC code is 7389 - Business Services, Not Elsewhere Classified and NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does G & J Seiberlich & Co LLP have currently?

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As of September 2026, G & J Seiberlich & Co LLP has approximately 39 employees across 1 continents, including North America. Key team members include President: C. B., Partner: A. A. and Partner: J. T. Explore G & J Seiberlich & Co LLP's employee directory with LeadIQ.

What industry does G & J Seiberlich & Co LLP belong to?

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G & J Seiberlich & Co LLP operates in the Accounting industry.

What technology does G & J Seiberlich & Co LLP use?

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G & J Seiberlich & Co LLP's tech stack includes WordPress, Microsoft 365, jQuery UI, Brevo, Microsoft Azure, Really Simple SSL & Security, Bootstrap and Google Analytics.

What is G & J Seiberlich & Co LLP's email format?

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G & J Seiberlich & Co LLP's email format typically follows the pattern of First@gjscollp.com. Find more G & J Seiberlich & Co LLP email formats with LeadIQ.

When was G & J Seiberlich & Co LLP founded?

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G & J Seiberlich & Co LLP was founded in 1950.
G & J Seiberlich & Co LLP logo

G & J Seiberlich & Co LLP

AccountingCalifornia, United States11-50 Employees

G & J Seiberlich & Co LLP is an accounting firm based in Napa, California, offering services that focus on managing income, business activity, and financial assets to help clients pursue long-term financial goals. The firm emphasizes a holistic view of life stages and how money flows through earning, spending, and saving, aiming to support clients in achieving a stable financial foundation. Serving individuals and small to mid-sized businesses, the practice positions itself within the accounting industry by addressing the financial planning and asset management needs that accompany various life milestones. Located in the Napa area, the firm operates with a regional footprint and provides personalized, life-centered accounting support. The description reflects a professional emphasis on helping clients align their financial decisions with their broader life objectives. An identified recent development is the firm’s ongoing engagement in its core accounting and financial advisory services within the local market.

Section iconCompany Overview

Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1950
Employees
11-50

Section iconFunding & Financials

  • $50M - $100M

    G & J Seiberlich & Co LLP's revenue is estimated to be in the range of $50M - $100M

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