DeLeon & Stang

What DeLeon & Stang does

DeLeon & Stang is a privately held, partner-owned professional services firm founded in 1984 and headquartered in Frederick, Maryland, with additional offices in Leesburg, Virginia, and Gaithersburg, Maryland. The firm delivers integrated advisory, assurance, tax, and accounting services to a Mid-Atlantic client base spanning growing businesses, government contractors, family-owned enterprises, nonprofit organizations, trade associations, public charities, and high-net-worth private clients. Its service portfolio covers the full accounting lifecycle — from bookkeeping and software consulting through audit, review, compilation, and agreed-upon procedures, to tax planning, business tax preparation, business-owner tax strategy, and private-client estate/gifting work — augmented by business advisory offerings in process evaluation, exit strategy, startup strategy, executive coaching, and risk advisory.

The firm operates as a traditional relationship-driven professional services practice rather than a technology platform. Service delivery relies on face-to-face engagement at office locations supported by a third-party technology stack including Aiwyn for client portal and engagement letters, TaxCaddy for document collection, and SafeSend Returns for tax return e-delivery and e-signature. There is no proprietary technology product, no disclosed AI/ML capability, and no software-as-a-service offering; the firm's value proposition rests on advisory quality, listening-based client engagement, and long-tenured staff expertise rather than on technology differentiation.

Commercially, DeLeon & Stang generates revenue through professional services engagements priced based on scope, complexity, and client requirements, with billing structured around multi-year advisory relationships. The go-to-market model is sales-led and referral-driven, reinforced by leadership involvement in regional business organizations (Frederick County and Gaithersburg-Germantown Chambers of Commerce), content marketing via a firm insights blog, and participation in industry events including AICPA Engage and MACPA programs. The firm has historically maintained independent partner ownership, executed an internal founder succession in 2023 without M&A, and has been recognized by Inside Public Accounting (Top 400/500, Fastest Growing Firm 2025) and Accounting Today (Regional Leaders 2024, 2026) as a top-tier Mid-Atlantic regional accounting practice.

Name

DeLeon & Stang

Legal name

DeLeon & Stang

Website

https://deleonandstang.com

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Headquarters

HQ city

Frederick

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Advisory Services: Business advisory services including consulting, process evaluation, exit strategy, startup strategy, and executive business coaching. Delivered through client engagements with professional advisors.
2. Assurance & Audit Services: Audit, review, compilation, and agreed-upon procedures for financial statements. Primarily serving nonprofit organizations, government contractors, and businesses.
3. Tax Services: Tax planning, business tax preparation, business owner tax strategy, and private client tax services. Includes tax compliance and advisory for individuals and businesses.
4. Accounting Services: Bookkeeping, accounting support, and software consulting for business clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

DeLeon & Stang is a professional services firm providing advisory, assurance, and tax services to businesses and individuals. The firm delivers consulting, audit and review, tax planning and preparation, and accounting/bookkeeping services, with specialized expertise for growing businesses, government contractors, family businesses, nonprofit organizations, trade associations, and high-net-worth private clients across the Mid-Atlantic region.

Product overview

DeLeon & Stang is a professional services firm offering an integrated portfolio of advisory, assurance, and tax services. The firm operates as a unified service offering rather than a platform-plus-modules architecture. Core services span consulting (process evaluation, exit strategy, startup strategy, executive coaching), assurance (audit, review, compilation, agreed-upon procedures, risk advisory), tax services (planning, business taxes, private client taxes, business owner tax strategy), and accounting. The firm specializes in serving growing businesses, government contractors, family businesses, nonprofits, trade associations, public charities, and private clients across Maryland and Virginia.

Differentiator

Problem solved

Functional benefit

Products and services

• Consulting Services General business advisory services covering strategic planning, process evaluation, exit strategy planning, startup strategy, and executive business coaching for growing businesses and organizations.
• Assurance & Risk Advisory Risk management and internal control advisory services designed to protect organizational assets and address operational and financial risks.
• Assurance Services Comprehensive audit and attestation engagements, including financial statement audits, review and compilation engagements, and agreed-upon procedures, primarily serving nonprofit organizations and government contractors.
• Tax Services Full-service tax compliance and planning covering federal, state, and local tax obligations for businesses and high-net-worth individuals, including tax planning, business tax preparation, business owner tax strategy, and private client tax services.
• Accounting Bookkeeping, financial reporting, and accounting support services for businesses and individuals, including outsourced accounting functions.
• Software Consulting Technology advisory services to help clients select, implement, and optimize business software solutions.

Named customers4 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Scale indicators3 records

Recent moves8 records

Expansion highlights4 records

Direct peers

• Ellin & Tucker: Baltimore-headquartered CPA and advisory firm serving businesses, nonprofits, and family enterprises in Maryland and the Mid-Atlantic with audit, tax, and consulting services. Comparable service-line breadth and regional Mid-Atlantic client base.
• Hertzbach & Company: Maryland-based full-service CPA firm providing tax, audit, and advisory services to businesses, nonprofits, and individuals in the Mid-Atlantic. Directly comparable as a peer-sized regional CPA serving similar client verticals.
• Councilor, Buchanan & Mitchell (CBM): Bethesda, Maryland-based CPA firm providing tax, audit, and business advisory services to nonprofits, closely-held businesses, and government contractors across the DC metro area. Comparable regional footprint and vertical focus on nonprofit and government contractor assurance.
• Yount, Hyde & Barbour (YHB): Frederick, Maryland-based regional CPA and advisory firm offering audit, tax, and business advisory services to closely-held businesses, government contractors, and nonprofits across the Mid-Atlantic. Most directly comparable peer due to overlapping geography, service mix, and target verticals.
• GRF CPAs & Advisors: Washington DC-area CPA and advisory firm serving nonprofits, government contractors, and growing businesses with audit, tax, and outsourced accounting services. Comparable in size, geography (DC/MD/VA), and specialization in nonprofit and government contractor verticals.

Emerging players

• Novogradac & Company: Specialty national accounting firm focused heavily on government contractors, real estate, and nonprofit tax credit services. Directly competes for the same government contractor and nonprofit engagements but with much deeper specialty expertise and national reach.

Broad incumbents

• Withum: Top-30 U.S. accounting and advisory firm with a strong Mid-Atlantic presence serving closely-held businesses, family offices, and nonprofits. Larger national firm competing on similar private client advisory engagements in the DC/VA corridor.
• Cherry Bekaert: Top-20 U.S. accounting firm with a strong Mid-Atlantic presence serving government contractors, nonprofits, and growing businesses. Larger national firm competing on similar verticals but with broader geographic reach and specialty consulting practices.
• Forvis: Top-10 U.S. accounting firm formed via the merger of FORVIS and Dixon Hughes Goodman, with substantial Mid-Atlantic coverage serving nonprofits and growing businesses. National incumbent with comparable service lines but vastly broader scale.
• BDO USA: Top-tier U.S. accounting and advisory firm with significant Washington DC/Maryland/Virginia operations serving government contractors and nonprofits. Large national incumbent competing for the same high-end assurance and advisory engagements in the Mid-Atlantic.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/DeLeonStang

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 DeLeon & Stang