A2 Financial Consulting is built on a single principle: small businesses deserve the same level of strategic and financial sophistication as larger enterprises – delivered in a way that is accessible, practical, and results-driven. Through our work, we enable entrepreneurs to focus on their vision while ensuring the foundation of their business is strong, compliant, and positioned for success.
Our team

Aditya Rengaswamy is dedicated to empowering small businesses with the financial insight, accounting overview, operational discipline, and strategic guidance they need to grow sustainably. Drawing on years of experience as a fractional CFO and multi-venture operator, he brings a rare combination of analytical expertise and practical execution to every engagement.
Aditya has overseen finance and operations across a wide range of industries, including retail, food service, aerospace technology, real estate, and professional services. His background includes managing government-funded contracts with rigorous compliance standards, structuring and negotiating private investments, scaling multi-unit franchise operations, and resolving complex landlord, vendor, and investor relationships. This breadth of experience allows him to design solutions that are not only strategically sound but also grounded in the realities of small-business ownership.
His core capabilities include:
- Developing robust financial models and reporting systems that support clear decision-making.
- Implementing compliance-ready accounting policies and internal controls.
- Structuring scalable operations and staffing frameworks to support long-term growth.
- Guiding fundraising, debt financing, and investment negotiations with clarity and rigor.
- Advising on real estate, vendor, and partnership agreements that protect owner interests.

Aidan Cullen helps organizations turn financial complexity into clear direction. His expertise lies at the intersection of accounting, advanced modeling, and operational leadership, where he translates data into strategies that drive growth and efficiency. Known for balancing analytical depth with practical execution, Aidan approaches each project with the goal of delivering insights that lead directly to smarter, more sustainable decisions.
Graduating cum laude from the University of Colorado Denver with a BSBA in Financial Management, Aidan has built a foundation in investment analysis, corporate finance, and accounting. Professionally, Aidan has served roles in operations, sales, and finance where he oversaw financial reporting, led planning initiatives, and scaled business significantly. During his tenure, online sales grew more than 20x, service revenue rose 12%, and the company tripled its store footprint and workforce.
His core capabilities include:
- Financial Planning & Analysis (FP&A): Developing forecasts, budgets, and financial walks that link strategy to outcomes.
- Financial Modeling & Valuation: Building DCFs, portfolio models, and scenario analyses to support clear decision-making.
- Operational Leadership: Scaling teams and systems, implementing reporting processes, and managing compliance.
- Data & Technology Skills: High proficiency in Excel, Tableau, and Power BI, with Python and SQL expertise for automation and advanced analytics.
- Consulting & Advisory: Supporting small businesses and entrepreneurial ventures with growth strategy, accounting oversight, and investment planning.