Hamilton Mercers Advisors

What Hamilton Mercers Advisors does

Hamilton Mercer Advisors is a private professional services firm headquartered at 1540 Kuser Rd, Suite A4, Mercerville, New Jersey, providing bookkeeping, payroll, accounting, and tax services to individuals, small-to-mid-size businesses, nonprofits, and entrepreneurs in the New Jersey market. The firm operates within an alternative practice structure under the Platform Accounting Group collective: Platform CPAs, LLP — a licensed independent CPA firm — delivers audit and attest services, while PT&C Group, LLC and its subsidiary entities provide tax compliance, tax planning, IRS representation, new business formation, outsourced accounting, and payroll administration. The team consists of approximately 15 credentialed professionals, including CPAs, a Certified Valuation Analyst, and a Certified in Financial Forensics credential holder, with principals carrying 30–40 years of regional experience.

The firm combines cloud-based outsourced accounting technology with deep QuickBooks proficiency to deliver collaborative bookkeeping and financial management, while using third-party generative AI services to accelerate tax preparation — subject to mandatory human review by qualified PAG professionals before any AI output reaches a client deliverable. Service delivery is direct and principal-led: client engagements are quoted on a per-engagement basis with no public pricing, and customer acquisition is driven by personal referrals, direct outreach, and a relationship-based GTM within the New Jersey accounting and business community.

Hamilton Mercer is one boutique brand inside a multi-firm collective, leveraging Platform Accounting Group's shared back-office, "Partner Advisories" (PlatformAdvise) referral pathways, and sister-firm cross-referrals. The firm traces its lineage to a 1992 CPA practice in West Windsor, NJ, merged into its current predecessor form in 1995; it has remained private, with no disclosed funding rounds, M&A activity, or expansion outside New Jersey. Revenue is not publicly reported.

Name

Hamilton Mercers Advisors

Legal name

Hamilton Mercer Advisors is a brand name under which Platform CPAs, LLP and PT&C Group, LLC provide professional services

Website

https://h-madvisors.com

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

Hamilton Mercer Advisors is a New Jersey-based, privately held accounting and tax advisory firm serving individuals, small-to-mid-size businesses, nonprofits, and entrepreneurs with bookkeeping, payroll, tax compliance and planning, audit, and IRS representation under the Platform Accounting Group collective.

Ownership category

akta.pro rank

Product category

Accounting & Tax Advisory Services

NAICS

Offices of Certified Public Accountants (541211)

SIC

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

akta.pro primary industry

Litigation Support & Expert Witness (Valuation-Related) (BPAHANAG)

Keywords

• Tax preparation services
• Accounting and bookkeeping
• Audit and attest
• Outsourced accounting services
• Payroll administration

Headquarters

HQ city

Trenton

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Tax Services: Tax filing and compliance services for individuals, businesses, non-profits, including foreign asset reporting, sales and use tax, and property tax. Also includes tax planning services covering estate and gift taxes, stock option compensation, real estate transactions, and multi-state planning.
2. Audit & Attest Services: Audit and attest services providing business owners, executives, and board directors with financial information and confidence. All audit and attest services performed by independent entity Platform CPAs, LLP.
3. IRS Representation: IRS representation services handling IRS matters from small to large issues on behalf of clients.
4. Business Formation Services: New business services including entity selection guidance and accounting system setup for entrepreneurs.
5. Outsourced Accounting: Cloud-based technology-enabled outsourced accounting and bookkeeping services enabling simplified record keeping and strategic decision-making.
6. Payroll Services: Administrative payroll duties handling ensuring strategic decisions while managing payroll compliance.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Hamilton Mercer Advisors provides tax filing and compliance, strategic tax planning, audit and attest (via affiliated Platform CPAs, LLP), IRS representation, new business formation advisory, outsourced accounting and bookkeeping, payroll administration, and second review services. The firm serves individuals, small to mid-size businesses, and nonprofit organizations primarily in the New Jersey market through an alternative practice structure under Platform Accounting Group.

Product overview

Hamilton Mercer Advisors operates as a financial advisory and accounting firm offering a comprehensive suite of professional services. The firm provides an integrated service portfolio consisting of Tax Filing & Compliance, Tax Planning, Audit & Attest (performed by affiliated Platform CPAs, LLP), IRS Representation, New Business Services, Outsourced Accounting, Payroll, and Second Review services. The firm leverages cloud-based technology for outsourced accounting and utilizes third-party generative AI to enhance tax preparation efficiency. Services are delivered through a partnership model focused on personalized financial planning and strategic advisory for individuals, businesses, and nonprofit organizations.

Differentiator

Problem solved

Functional benefit

Products and services

• Tax Filing & Compliance Tax compliance and filing services for individuals, businesses, and nonprofit entities, covering foreign asset reporting, sales and use tax, and property tax preparation.
• Tax Planning Strategic tax planning services covering estate and gift taxes, stock option compensation, real estate transactions, multi-state planning, and tax credit utilization.
• Audit & Attest Audit and attest services performed by affiliated entity Platform CPAs, LLP, providing business owners, executives, and board directors with financial information and analysis.
• IRS Representation IRS audit representation services providing assistance with IRS matters from small issues to complex problems, handling all interactions with the IRS on behalf of clients.
• New Business Services Startup advisory services including entity selection assistance and accounting system setup to ensure new businesses are established correctly from inception.
• Outsourced Accounting Cloud-based outsourced accounting services that simplify record keeping and enable strategic decision-making in partnership with clients.
• Payroll Payroll administration services handling administrative payroll duties while supporting strategic decision-making for businesses.
• Second Review Tax return review services providing a second look at returns to ensure clients receive all deductions and credits owed to them.

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature2 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Platform CPAs, LLPcoreStrategic or Co-development PartnerLicensed independent CPA firm that provides attest services as part of the alternative practice structure. Platform CPAs, LLP and PT&C Group, LLC operate independently but collaborate under the Hamilton Mercer Advisors brand.
• PT&C Group, LLCcoreStrategic or Co-development PartnerParent entity providing tax and business consulting services. PT&C Group, LLC and its subsidiaries including Hamilton Mercer Advisors are not licensed CPA firms but operate within the Platform Accounting Group collective.
• Platform Accounting GroupcoreStrategic or Co-development PartnerNext-gen accounting collective that includes Hamilton Mercer Advisors and other boutique firms, created to help firms thrive in the 21st century. Parent organization for the alternative practice structure.
• Platform AdviseminorChannel Partner/ Reseller/ DistributorPartner advisories platform linked through the main website navigation, providing additional advisory services to clients under the Platform Accounting Group ecosystem.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• RSM US: Top-5 US accounting and advisory firm with New Jersey offices providing tax, audit, and consulting to middle-market companies. Larger incumbent offering overlapping services, relevant as a competitive threat and talent acquirer in the NJ mid-market.

Direct peers

• Sax LLP: Mid-market accounting and advisory firm with New Jersey offices providing tax, audit, and outsourced accounting services to SMBs and nonprofits. Comparable peer given shared NJ geography and similar client mix.
• Citrin Cooperman: Mid-market accounting and advisory firm with strong NJ and NY presence serving closely-held businesses, individuals, and nonprofits. Directly comparable in service portfolio and target clientele.
• Grassi & Co. Regional mid-market accounting and advisory firm with NYC-area offices serving closely-held businesses and individuals with tax, audit, and outsourced accounting. Comparable in scale and service portfolio.
• Marks Paneth: NY/NJ mid-market accounting and advisory firm serving closely-held businesses, real estate, nonprofits, and HNW individuals with tax, audit, and advisory services. Direct overlap in client segments and service lines.
• WilkinGuttenplan: New Jersey-based mid-market CPA firm providing tax, audit, accounting, and advisory services to closely-held businesses and nonprofit clients across the region. Direct local competitor with comparable service mix.
• Bederson LLP: New Jersey-based accounting and advisory firm providing tax, audit, and accounting services to privately-held businesses and individuals. Comparable peer in geography and client type.
• Wiss & Company: New Jersey-headquartered mid-market CPA and advisory firm serving closely-held businesses, nonprofits, and high-net-worth individuals with tax, audit, and outsourced accounting services. Directly comparable in geography, service mix, and SMB/nonprofit client focus.
• PKF O'Connor Davies: Top-20 US accounting firm with significant NJ presence offering tax, audit, advisory, and accounting services to middle-market businesses, individuals, and nonprofits. Comparable peer in target market and service breadth.
• Withum Smith + Brown: Princeton, NJ-based mid-market accounting and advisory firm offering tax, audit, advisory, and outsourced accounting to SMB and nonprofit clients. Comparable peer given shared NJ footprint and overlapping service lines.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/hamilton-mercers-advisors

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 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 Hamilton Mercers Advisors