Business Details
50+ Years
experience
Trusted Accounting Services in Newburyport, MA
Founded in 1974, Ambrosi Donahue Congdon CPAs Certified Public Accountants (ADC) began as a local firm serving the North Shore of Massachusetts. Over five decades, we have expanded our reach to serve clients in 35+ U.S. states while maintaining our commitment to personalized service. Our team of accounting experts specializes in audit, tax, consulting, and government contracting services, combining deep technical knowledge with proactive client advocacy. We prioritize understanding each clients unique needs, whether individuals, corporations, or nonprofits, to deliver tailored financial strategies.Our staff includes seasoned professionals with expertise in federal, state, and international tax regulations, ensuring compliance and optimized outcomes. We leverage cutting-edge technology to streamline accounting processes and provide real-time financial insights. As advocates, we stand by clients during audits, litigation, and business transitions, offering unwavering support. Our mission remains rooted in mitigating risk, uncovering growth opportunities, and fostering long-term client success through integrity and innovation.
Services
Bookkeeping
Tax Services
Consulting Services
Government Billing Services
Quarterly Monitoring
Audit & Assurance
Indirect Rate Management
R&D Tax Credits
Not-For-Profit Accounting
Multi-State Tax Compliance
Details
- Year established: 1974
Highlights and features
- We offer 50+ years of combined experience in accounting and tax compliance.
- Our team includes certified experts in government contracting and SBIR/STTR programs.
- We provide nationwide service with a personalized, local firm approach.
- Our proprietary systems ensure seamless compliance and reporting for government contracts.
- We advocate for clients during audits, litigation, and complex tax challenges.
What people say
Outstanding presentations
Knowledgeable, engaging, and proactive
Highly qualified professional
Instrumental in growth and success
Clear and efficient support
Services
Tax Services
Our tax services minimize liabilities through strategic planning and compliance with federal, state, and international regulations. We offer business, individual, estate, and multi-state tax solutions tailored to client needs. With expertise in R&D credits and international tax compliance, we ensure optimized outcomes for diverse clients.
Audit & Assurance
We conduct independent audits and assurance engagements to validate financial statements and internal controls. Our services include compiled, reviewed, and audited financial statements, agreed-upon procedures, and not-for-profit accounting support. We use advanced technology to minimize disruptions during audits.
Government Billing Services
We manage financial reporting, indirect rate calculations, and compliance for government contracts. Our services include labor distribution reconciliation, grant billing, and support for SBIR/STTR programs. We train clients on contract requirements and provide audit-ready documentation.
Consulting Services
Our consulting services analyze business performance to streamline financial systems and identify growth opportunities. We offer business analytics, internal control evaluations, and strategic planning without assurance on systems or financial statements, focusing on actionable recommendations.
Bookkeeping
We provide full-service bookkeeping and accounting outsourcing, including payroll reconciliation, financial reporting, and compliance for commercial and government clients. Our technology-driven approach ensures accurate, up-to-date records tailored to client workflows.
People
Anthony Rita
Partner
Anthony leads the Commercial division with 20+ years in corporate accounting, auditing, and tax. He previously served as an audit manager at Grant Thornton, specializing in commercial practice.
Brittany Leary
Partner
Brittany oversees the Government Contracting division, focusing on SBIR/STTR startups. She brings a decade of expertise in government-funded organizations and strategic financial planning.
Keith Congdon
Director
Keith has extensive experience in public company auditing and corporate finance, previously serving as a corporate officer at The Stackpole Corporation before joining ADC.
George Moker
Director
George specializes in SBIR/STTR compliance and government-funded startups, with a focus on tax credits and indirect rate management for clients nationwide.
Robert Poirier
Senior Director
Robert has led ADCs tax compliance and assurance services since 2001, offering expertise in IRS audits and multi-state tax reporting for diverse clients.
Questions
What accounting services do you offer?
We provide audit assurance, tax planning, bookkeeping, government billing, quarterly monitoring, and consulting services tailored to businesses and individuals.
How do you handle government contract compliance?
We specialize in SBIR/STTR compliance, indirect rate management, and government billing through proprietary systems and expert guidance.
Do you serve clients outside Massachusetts?
Yes, we serve clients in over 35 U.S. states, with expertise in multi-state and international tax regulations.
What sets your firm apart from other CPAs?
Our focus on government contracting, personalized advocacy, and 50+ years of experience in complex financial scenarios distinguish us.
How do you support nonprofit organizations?
We address nonprofit-specific accounting challenges, including compliance, grant reporting, and tax-exempt status maintenance.
