Maillie LLP

What Maillie LLP does

Maillie LLP is a regional public accounting firm founded in 1946 and headquartered in Limerick, Pennsylvania. The firm operates from three offices — Limerick and West Chester in Pennsylvania, and New Castle in Delaware — and employs more than 100 professionals serving clients across Pennsylvania, New Jersey, and Delaware. It is structured as a privately held limited liability partnership, with Managing Partners Laurie E. Toll and Gregory J. Shank (named in April 2026) leading the firm.

The firm delivers services across three core lines: Accounting and Audit (including employee benefits, financial forecasting, and risk assessment), Tax Services (international taxation, tax compliance, and financial planning), and Business Advisory (business valuation, industry benchmarking, and forensic accounting). Service delivery is organized around seven industry verticals: Automobile Dealers, Government, Construction & Real Estate, Manufacturing & Distribution, Non-profit Organizations, Professional Services, and Technology and Life Sciences. The firm does not develop or sell software products; its core technology consists of standard professional services tooling including a secure client file-exchange and payment portal, content marketing assets, and social media channels (Twitter, Facebook, LinkedIn, Instagram).

Maillie LLP generates revenue through professional services fees billed on a quote-based engagement basis, with go-to-market executed via direct client engagement and a formal RFP process for new mid-market and enterprise clients. The firm invests in content marketing (blog, e-newsletter) and social media for top-of-funnel demand generation. Recent strategic activity includes a new 25,000-square-foot Limerick headquarters to support growth and remote work capabilities, and external recognition as a Top 300 national firm by INSIDE Public Accounting, a Top 25 regional firm and 17th-largest Philadelphia-area firm by the Philadelphia Business Journal, and a 2024 and 2025 Top Workplace.

Name

Maillie LLP

Legal name

Maillie LLP

Website

https://maillie.com

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Headquarters

HQ city

Mont Clare

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services Fees: Revenue generated from providing accounting, audit, tax preparation, and business advisory services to clients on a fee-for-service basis

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Maillie LLP is a regional public accounting firm that provides accounting and audit, tax, and business advisory services to businesses and individuals across Pennsylvania, New Jersey, and Delaware. The firm serves seven industry verticals including automobile dealers, government, construction and real estate, manufacturing and distribution, non-profits, professional services, and technology and life sciences. Services include financial forecasting, risk assessment, tax compliance, international taxation, business valuation, industry benchmarking, and forensic accounting.

Product overview

Maillie LLP is a regional public accounting firm providing professional services rather than a software product company. The firm operates as a unified service offering with three core service lines: Accounting and Audit Services, Tax Services, and Business Advisory Services. These services are delivered to clients across seven industry verticals including Automobile Dealers, Government, Construction & Real Estate, Manufacturing & Distribution, Non-profit Organizations, Professional Services, and Technology and Life Sciences.

Differentiator

Problem solved

Functional benefit

Products and services

• Accounting and Audit Services Comprehensive accounting and audit services including employee benefits, financial forecasting, and risk assessment for businesses across multiple industries.
• Tax Services Tax servicing for businesses of all sizes including international taxation, tax compliance, and financial planning and projections.
• Business Advisory Services Advisory services focused on building better businesses including business valuation, industry benchmarking, and forensic accounting.

Segments7 records

Ideal customer profiles7 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Kreischer Miller & Co. Horsham, PA-based regional CPA and advisory firm serving closely overlapping Mid-Atlantic clients with accounting, tax, and advisory services - direct geographic and service-line peer to Maillie.
• Herbein + Company, Inc. Pennsylvania-based regional accounting firm with similar size, multi-office footprint in PA, and comparable accounting, tax, and advisory service mix targeting middle-market businesses.
• Wipfli LLP: Top-25 U.S. regional accounting and advisory firm with comparable size, multi-vertical specialization, and similar middle-market positioning - closely aligned peer in scale and go-to-market.
• Eide Bailly LLP: Top-25 U.S. regional CPA firm with similar mid-market client profile, comparable headcount range, and overlapping accounting/tax/advisory service model.
• Brown Plus: Pennsylvania-based regional CPA and advisory firm of comparable size, competing with Maillie for the same Mid-Atlantic middle-market clients.

Broad incumbents

• CliftonLarsonAllen (CLA): Top-10 U.S. accounting and advisory firm with deep presence in the Mid-Atlantic and a strong middle-market focus - directly comparable in vertical specialization but operates at significantly greater scale than Maillie.
• RSM US: Largest mid-market-focused accounting firm in the U.S., serving the same middle-market verticals (manufacturing, real estate, nonprofits, tech) as Maillie but at a national scale.
• Baker Tilly US: Top-10 U.S. advisory, tax, and accounting firm with mid-market focus and similar industry verticals (construction, real estate, government, nonprofits) - comparable in service mix but with national footprint.
• Plante Moran: Top-15 U.S. accounting and business advisory firm with comparable vertical specialization across manufacturing, real estate, and government - illustrates the trajectory Maillie could pursue through growth.

Regional players

• Zinner & Co. Small-to-mid-market CPA firm serving closely adjacent New England/Mid-Atlantic clients; comparable in scale and service offering though operating in a different regional cluster.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks4 records

Key highlights7 records

Customer concentration

• Xx.com/mailliellp
• Facebookfacebook.com/maillie-llp-497417176996839
• LinkedInlinkedin.com/company/maillie-llp
• Instagraminstagram.com/mailliecpas

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 Maillie LLP