HDB

What HDB does

HDB, LLC is a privately held, full-service accounting and advisory firm headquartered at 4709 Golf Road, Suite 425, Skokie, Illinois, serving clients across Chicago's North Shore region. The firm is organized as an LLC and is led by its founder, Michael P. Heneghan, CPA, JD, who serves as Principal & Founder; the named leadership team also includes a Senior Tax Manager (Brian R. Wurm, CPA) and an Audit & Quality Control Manager (Matthew A. Mauer, CPA). According to the firm's website, its CPAs collectively hold more than 75 years of credentials and operate as "trusted advisers" to a regional client base.

The firm's core offerings span three service lines: tax preparation and planning (including domestic and international compliance, real estate planning, business distribution planning, and investment-partnership taxation), attestation services (audits, compilations, and reviews for closely-held businesses, employee benefit plans, not-for-profit entities, and investment partnerships), and advisory services (expert witness testimony, valuation of closely-held business interests and tax shelters, pension/profit-sharing plan analysis, and estate/trust compliance). The founder's dual CPA/JD credentials and his specific expertise in depositions and expert testimony differentiate the firm's advisory practice.

The business operates on a traditional professional-services engagement model: direct client relationships, quote-based pricing, and by-appointment-only office hours. Distribution is regional and relationship-driven, supported by a marketing website (hdbcpa.com) and a secure online file-upload portal. The firm holds memberships in the American Institute of Certified Public Accountants (AICPA), the Illinois CPA Society (ICPAS), and the Chicago Bar Association. There is no proprietary technology platform, no disclosed headcount, no disclosed revenue, no funding history, and no AI/ML components — the firm's operations are entirely people-led and credential-led.

Name

HDB

Legal name

HDB, LLC

Website

https://hdbcpa.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

1–10 employees

Short description

HDB, LLC is a privately held, full-service CPA firm based in Skokie, Illinois, serving Chicago's North Shore with tax, attestation, and advisory services for closely-held businesses, NFPs, estates, and trusts.

Ownership category

akta.pro rank

Headquarters

HQ city

Skokie

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, Others

Distribution channels1 record

Marketing channels1 record

Core offering

HDB, LLC is a full-service Certified Public Accounting (CPA) firm providing tax preparation and planning, audit and attestation, and advisory services. The firm serves closely held businesses, employee benefit plans, not-for-profit entities, investment partnerships, individuals, estates, and trusts from its office in Chicago's North Shore (Skokie, IL). Practitioners also provide expert witness testimony and business valuation services for legal proceedings.

Product overview

HDB LLC is a full-service accounting firm providing tax, attestation, and advisory services. The firm operates as a single-service practice with no platform or modular product architecture. Core offerings include tax preparation and planning (domestic and international), audit and attestation services (closely-held businesses, employee benefit plans, not-for-profit entities, investment partnerships), and advisory services (expert witness testimony, business valuation, and estate planning).

Differentiator

Problem solved

Functional benefit

Products and services

• Tax Services Comprehensive tax preparation, planning, and compliance services for individuals, businesses, estates, and trusts, covering both domestic and international tax matters.
• Attestation Services Audit and attestation services including preparation and review of closely held business entities, employee benefit plans, not-for-profit entities, and investment partnerships.
• Advisory Services Expert witness testimony, business valuation services for closely-held business interests, tax shelters, and pension and profit sharing plans, plus analysis of tax consequences.
• Compilation and Review Services Monthly compilation services and year-end reviews for ongoing financial oversight and compliance.

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core and minor.

• American Institute of Certified Public Accountants (AICPA)coreOthersProfessional membership and accreditation body. Principal Michael P. Heneghan is a member. Provides standards, resources, and credibility for CPA practitioners.
• Illinois CPA Society (ICPAS)coreOthersState-level professional organization for CPAs in Illinois. Principal Michael P. Heneghan is a member. Provides local professional development and networking.
• Chicago Bar AssociationminorOthersProfessional association for legal professionals. Principal Michael P. Heneghan, who holds a JD degree, has membership. Supports expert witness and legal consultation work.

Scale indicators1 record

Recent moves4 records

Expansion highlights2 records

Regional players

• Sikich LLP: Chicago-area professional services firm offering accounting, tax, advisory, and technology services to middle-market companies. Larger than HDB but operates in the same Chicago market with overlapping service lines.
• Grassi & Co. Mid-size Chicago-based accounting and business advisory firm serving closely-held businesses, not-for-profits, and high-net-worth individuals. Larger scale but comparable service mix and Chicago regional focus.

Direct peers

• Porte Brown LLC: Chicago-area full-service accounting and advisory firm serving closely-held businesses with tax, audit, and advisory services. Highly comparable in size, service mix, and regional Chicago footprint to HDB LLC.
• Miller Cooper & Co., Ltd. Chicago-area CPA firm offering tax, audit, and advisory services to middle-market and closely-held businesses. Comparable regional Chicago CPA practice with similar service breadth.
• Selden Fox Ltd. Chicago suburban accounting firm providing tax, audit, and consulting to closely-held businesses and not-for-profits. Comparable in regional Chicago positioning and traditional full-service CPA model.
• Mueller & Co., LLP: Chicago North Shore area accounting firm providing traditional tax, audit, and advisory services to closely-held businesses and individuals. Direct geographic and service overlap with HDB LLC.
• ORBA (Ostrov, Reiff, Barabas & Zivich LLC): Chicago-based full-service CPA and advisory firm serving closely-held businesses and high-net-worth individuals with tax, audit, and business advisory. Similar in size and service offering to HDB LLC.

Broad incumbents

• Wipfli LLP: Top-25 U.S. accounting and advisory firm serving closely-held and mid-market businesses with tax, audit, and consulting. Comparable service categories but at significantly larger scale than HDB.
• Marcum LLP: Top-15 U.S. accounting firm providing tax, audit, advisory, and technology services to middle-market and closely-held businesses. National scope with overlapping Chicago regional presence and service mix.
• Crowe LLP: Top-10 U.S. accounting firm headquartered in Chicago, offering audit, tax, advisory, and consulting across all major industries. A much larger incumbent that competes with HDB for Chicago-based middle-market work.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks4 records

Key highlights6 records

Customer concentration

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 HDB