CPA-Led Accounting & Fractional CFO Support in Long Island, NY
Where suburban growth meets business sophistication—and your books stay organized.
Serving more of New York
We support 3 cities across the state
How we help Long Island operators
Bookkeeping
- Accurate, up-to-date books for Long Island businesses
- Monthly close + reporting you can trust
Operational Accounting & Financial Reporting
- Stronger accounting workflows tailored to Long Island's business needs
- Audit/compliance readiness and cleaner documentation
Fractional Controller / Fractional CFO
- Cash flow planning + capital strategy for Long Island operators
- Strategic leadership for growth and risk management
What we see in Long Island
Long Island's business community spans healthcare, technology, manufacturing, and professional services. As companies grow across Nassau and Suffolk counties, they need financial operations that provide clarity without complexity. We help Long Island businesses maintain clean books and strong financial visibility.
As Long Island continues to grow and evolve, businesses face increasing complexity in their financial operations. We help you navigate this growth with clean books, clear reporting, and the financial clarity you need to make confident decisions.
- Scaling financial operations to match business growth
- Managing complex revenue streams and billing models
- Ensuring accurate financial reporting for stakeholders
- Building financial processes that support strategic decisions
- Balancing operational efficiency with financial control
Industries we commonly support in Long Island
We support modern businesses across the Long Island metro area, bringing CPA-led expertise to help you maintain clean books and strong financial operations.
Who We Serve in Long Island
From healthcare & medical services to professional services, Long Island businesses share a common need: financial clarity that enables confident decision-making. Here's who we work with most often in the Long Island market.
Family Businesses
Preserving legacy while maximizing the future
We partner with multi-generational businesses to modernize financial systems, improve visibility, and support long-term continuity and stewardship.
Startups & Growth-Stage Companies
Laying the foundation for sustainable growth
We work with early and scaling companies to establish clean books, disciplined reporting, and financial leadership that grows with the business.
Accounting System Transformation Teams
Building modern financial infrastructure
We help businesses replace fragile, outdated accounting processes with scalable systems that support growth, accuracy, and strategic insight.
Founder-Led Businesses
Empowering leaders with financial clarity
We help founders move from reactive financial management to confident, data-driven leadership—without losing focus on the business they're building.
Nearby areas we serve
Our remote-first approach means we can support businesses throughout the greater Long Island metro area and beyond.
Frequently asked questions
Do you work with Long Island-based healthcare and technology companies?
Yes. We support businesses across Long Island's major industries, including healthcare, technology, manufacturing, and professional services. Our team understands the financial complexities specific to these sectors.
How do you help Long Island businesses scale their finance function?
We start by understanding your current state and growth trajectory. Then we build the right financial operations—from clean bookkeeping to strategic CFO support—that scale with you without adding unnecessary overhead.
Do you serve businesses throughout Nassau and Suffolk counties?
Absolutely. We work with companies throughout Long Island, including Nassau and Suffolk counties, and the greater New York metro area. Our remote-first approach means we can support your business regardless of your exact location.
What makes your approach different for Long Island businesses?
We understand Long Island's business environment and the need for financial operations that provide clarity without adding complexity. Our CPA-led team brings deep expertise in supporting scaling businesses.
Can you help with financial reporting for Long Island companies?
Yes. We help you maintain clean books and accurate financial reporting that supports strategic decision-making. Our goal is to provide the financial clarity you need to grow with confidence.
Recommended next steps for Long Island teams
Explore how we can help businesses like yours, learn about our services, or dive into our process.
Family Businesses
Preserving legacy while maximizing the future
Startups & Growth-Stage Companies
Laying the foundation for sustainable growth
Accounting System Transformation Teams
Building modern financial infrastructure
Our Services
From bookkeeping to fractional CFO, services that scale with you
Our Process
How we work together to transform your financial operations
Get clarity in Long Island—without adding overhead.
Let's discuss how Assay AI can help your business achieve its financial goals with precision and confidence.