Zielinski Companies

What Zielinski Companies does

Zielinski Companies is a private, family-owned accounting and consulting firm headquartered in Fenton, Missouri, founded in 1957 by William L. Zielinski, a World War II veteran and accountant who began working with the Sisters of St. Joseph of Carondelet in 1953. The firm provides specialized financial, planning, and management services to religious communities (overwhelmingly Catholic), ministries, churches, parishes, seminaries, and faith-based nonprofit organizations, with a named client base of more than 500 religious and not-for-profit organizations spanning dozens of orders including Benedictines, Dominicans, Franciscans, Jesuits, and Carmelites, alongside education and healthcare clients. The firm also serves interfaith clients such as the Jewish Federation and operates across multiple U.S. states and internationally (Uganda).\n\nThe firm's service portfolio is organized into three lines: Audits & Reviews (including Tax Services such as Form 990 preparation and tax audit representation), Funds Stewardship (Accounting Services & Financial Consulting, Cash Management via the IAS Central Checking System, and Credit Card Services via the Z-Card Program), and Planning Studies (Financial Assessments, Organizational Assessments, Ministry Planning, Operational Reviews, and Senior Care Assessments & Planning). Two proprietary platforms anchor its technology footprint: the IAS Central Checking System, a centralized cash management system in operation since 1966 that tracks, consolidates, and reports on spending across multiple religious houses and now serves more than 6,000 individual users across 50+ congregations, and the Z-Card Credit Card Program, a religious-community-specific credit offering developed in association with Commerce Bank, N.A. and used by more than 3,000 cardholders across 75 accounts and 6,500+ Catholic religious members.\n\nZielinski operates a professional services and managed services revenue model. Audit, tax, accounting, and planning engagements are billed on a quote-based, scope-driven basis; the IAS and Z-Card programs generate recurring managed-services revenue. Distribution relies on direct engagement with religious community leadership, supplemented by active memberships in industry associations such as the Leadership Conference of Women Religious (LCWR), Conference of Major Superiors of Men (CMSM), The Resource Center for Religious Institutes (RCRI), AICPA, MSCPA, and the International Leadership Association, plus word-of-mouth referrals from existing clients. Leadership transitioned to Executive Directors Barbara M. Zielinski, CPA and Gregory W. Zielinski, PhD following founder William L. Zielinski's death on October 3, 2021, with the firm continuing to operate as an independent, privately held entity.

Name

Zielinski Companies

Legal name

Zielinski Companies

Website

https://zielinskico.com

Company type

Private

Founded year

1957

Operating status

Operating

Headcount range

11–50 employees

Short description

Zielinski Companies is a family-owned accounting and consulting firm founded in 1957 that provides audits, tax, funds stewardship, cash management, credit card, and planning services to Catholic religious communities, ministries, and faith-based nonprofit organizations across the U.S. and internationally.

Ownership category

akta.pro rank

Product category

Nonprofit Accounting and Financial Consulting Services

NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services (54121), Trusts, Estates, and Agency Accounts (525920)

SIC

Services-Engineering, Accounting, Research, Management (8700), Finance Services (6199)

akta.pro industry

PRIMARYFSAEAKAA

Personal Trust & Fiduciary Administration

Financial & Insurance/Financial Advisory, Brokerage & Intermediation/Fiduciary, Trust & Estate Advisory

SECONDARYFSAEAAAO

Business Owner & Executive Financial Planning

Financial & Insurance/Financial Advisory, Brokerage & Intermediation/Investment Advisory & Financial Planning

SECONDARYFSAAADAD

Family Office Administration & Operations (Accounting, Reporting, Payroll)

Financial & Insurance/Asset & Wealth Management/Family Offices (Single- & Multi-Family)

Keywords

• Nonprofit accounting services
• Religious community consulting
• Cash management systems
• Audit and review services
• Faith-based planning studies

Headquarters

HQ city

Fenton

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Audit and Review Services: Audit, review, and compilation services for religious communities, sponsored institutions, ministries, and other mission-focused organizations. Procedures conducted in accordance with professional standards.
2. Accounting and Financial Consulting: Full range of accounting and financial services including chart of account set-up, month-end and year-end financial reporting, cash management, budget and projections preparation, patrimony accounting, payroll tax return preparation, bank and investment statement reconciliations, and fixed asset accounting.
3. Tax Services: Tax advisory services including preparation of IRS Form 990, year-end preparation and reporting of patrimony income for 1099s, tax audit representations, and preparation of individual tax returns for members of religious communities.
4. Planning Services: Comprehensive planning studies including financial assessments, organizational assessments, ministry planning, operational reviews, and senior care assessments and planning. More than 80 planning projects completed to date.
5. IAS Central Checking System: Cash management services through the Institutional Automated Systems Central Checking System. Monitors and manages cash balances for religious communities with comprehensive reporting.
6. Credit Card Program: Credit card program for religious and mission-focused organizations, provided in association with Commerce Bank, N.A. Services include credit card applications, account management, fraud mitigation, and reporting.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels2 records

Core offering

Zielinski Companies provides accounting, auditing, tax, financial consulting, cash management, credit card, and planning services to religious communities, ministries, churches, parishes, seminaries, and faith-based nonprofit organizations. Core offerings are organized under Audits & Reviews (including Tax Services), Funds Stewardship (Accounting Services, IAS Central Checking cash management, and Z-Card credit card program), and Planning Studies (financial, organizational, ministry, operational, and senior care planning).

Product overview

Zielinski Companies is a financial, planning, and management consulting firm founded in 1957, offering services in more than a dozen areas to religious communities, ministries, churches/parishes, monasteries, seminaries, faith-based institutions, and other nonprofit organizations. The company's service portfolio is organized into three main categories: Audits & Reviews (including Tax Services), Funds Stewardship (encompassing Accounting Services, Cash Management via the IAS Central Checking System, and Credit Card Services via the Z-Card Program), and Planning Studies (including Financial Assessments, Organizational Assessments, Ministry Planning, Operational Reviews, and Senior Care Assessments & Planning). The firm combines financial expertise with mission-focused consulting to help clients manage their organizations and plan for the future.

Differentiator

Problem solved

Functional benefit

Brands

• IAS Central Checking System: Centralized checking and cash management system for religious communities that tracks, consolidates, and reports on members' spending.
• Z-Card Credit Card Program

Products and services

• Audits & Reviews Audit, review, and compilation services for religious communities, sponsored institutions, ministries, and other mission-focused organizations, performed in accordance with professional standards.
• Tax Services Financial advisory services for religious communities, ministries, and nonprofit organizations, including preparation of IRS Form 990, year-end preparation and reporting of patrimony income for 1099s, tax audit representations, and preparation of individual tax returns for members of religious communities.
• Accounting Services & Financial Consulting Full range of accounting and financial services including chart of account set-up, month-end and year-end financial reporting, cash management, budget preparation, patrimony accounting, payroll tax return preparation, bank and investment statement reconciliations, and fixed asset accounting for religious communities and nonprofits.
• Cash Management Services (IAS Central Checking System) Institutional Automated Systems (IAS) Central Checking System providing centralized banking and cash management for religious communities, enabling monitoring and management of cash balances across multiple members and houses, with comprehensive reporting.
• Credit Card Services (Z-Card Program) Credit card program designed specifically for religious communities and mission-focused organizations, enabling financial managers to efficiently manage accounts while giving cardholders autonomy and flexibility, with restricted-use card options.
• Planning Studies Comprehensive planning studies including financial assessments, organizational assessments, ministry planning, operational reviews, and senior care assessments and planning for mission-focused organizations addressing changing needs and resources.
• Senior Care Advisory Services Advisory services to assist religious communities and ministries with management of retirement, healthcare, facilities, operations, and human resources needs, delivered by LNHA-certified advisors with more than 25 years of senior care experience.

Quantifiable outcome

• More than 500 religious and not-for-profit organizations served since 1957
• +3 more outcomes

Named customers49 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered minor and core.

• American Institute of Certified Public Accountants (AICPA)minorOthersProfessional membership organization for CPAs. Zielinski Companies maintains membership demonstrating professional credentials and standards.
• Missouri Society of Certified Public Accountants (MSCPA)minorOthersState-level professional membership organization for CPAs in Missouri. Zielinski Companies maintains membership for professional credibility.
• Leadership Conference of Women Religious (LCWR)coreOthersMajor association representing women religious leaders in the United States. Zielinski Companies maintains relationship as a trusted service provider to LCWR member congregations.
• Conference of Major Superiors of Men (CMSM)coreOthersLeadership organization for male religious superiors in the United States. Zielinski Companies maintains relationship as a trusted service provider to CMSM member institutes.
• The Resource Center for Religious Institutes (RCRI)coreOthersResource center providing support and guidance to religious institutes. Zielinski Companies maintains partnership to serve as a resource for RCRI member communities.
• International Leadership AssociationminorOthersProfessional association for leadership development and research. Zielinski Companies maintains membership for professional development and industry connections.
• Vogt Strategic Insights (VSI)minorStrategic or Co-development PartnerStrategic insights firm providing research and analysis capabilities. Maintains relationship with Zielinski Companies for potential collaborative research on religious community trends.
• Insights AssociationminorOthersProfessional association for marketing and research professionals. Zielinski Companies maintains membership for industry connections and best practices.
• The National Society of Leadership and SuccessminorOthersHonor society recognizing college students for leadership achievement. Zielinski Companies maintains relationship for talent acquisition and recognition.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• CapinCrouse LLP: National CPA and advisory firm exclusively serving nonprofit organizations, including churches, faith-based organizations, and educational institutions. Closest direct competitor to Zielinski in the religious/nonprofit accounting niche, with comparable specialization and a similar target customer profile.

Broad incumbents

• Plante Moran: Large US accounting and advisory firm with a meaningful faith-based and nonprofit practice serving dioceses, religious orders, and Catholic institutions. Overlaps with Zielinski's audit and advisory services but does not focus exclusively on religious communities.
• Sikich: Mid-market US accounting and advisory firm with a nonprofit practice serving faith-based clients. Competes broadly with Zielinski for nonprofit audit and advisory engagements but does not focus on Catholic religious communities.
• WithumSmith+Brown (Withum): Top-30 US accounting and advisory firm with a dedicated nonprofit practice including faith-based clients. Competes with Zielinski for nonprofit audit and advisory work but lacks Zielinski's narrow Catholic-community specialization.
• Forvis (formerly BKD): Top-10 US accounting firm formed from the merger of BKD and Dixon Hughes Goodman, with a sizable nonprofit and religious-organization practice. Serves faith-based institutions nationally and competes with Zielinski for larger religious-community engagements.
• Eide Bailly: Top-25 US accounting firm with a meaningful nonprofit and faith-based practice, including audits and advisory for religious organizations. Competes with Zielinski for religious-community work in the Midwest and Mountain West regions.
• Moss Adams: Top-15 US accounting and consulting firm with a significant nonprofit practice serving religious organizations, foundations, and faith-based institutions. Competes for larger religious-community engagements but does not focus narrowly on the same niche.
• BDO USA: Top-5 global accounting and advisory firm with a dedicated nonprofit practice serving religious organizations, foundations, and charities. Competes with Zielinski for larger religious clients and institutional engagements, but is a generalist firm without Zielinski's depth in Catholic religious communities.
• CliftonLarsonAllen (CLA): Top-10 US accounting firm with one of the largest nonprofit practices in the country, serving faith-based organizations, religious communities, and institutions. Competes broadly with Zielinski but operates as a multi-service firm rather than a religious-community specialist.

Regional players

• The Bonadio Group: Upstate New York-based CPA and advisory firm serving nonprofit organizations including faith-based institutions. Geographic overlap with Zielinski's reach is limited, but it represents another mid-sized competitor in the religious/nonprofit accounting space.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/ZielinskiCos
• Facebookfacebook.com/ZielinskiCompanies
• LinkedInlinkedin.com/company/zielinski-companies

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Zielinski Companies