Team
The People Behind Your Numbers
A team of 20+ accounting professionals led by experienced partners who bring CPA oversight, industry specialization, and a commitment to improving how your accounting works
G&S Accountancy is a full-service CPA firm in Rancho Cucamonga, California with a team of over 20 accounting professionals. Led by Managing Partner AJ Singh, CPA, EA and Partner & CTO Neeraj Gupta, the team specializes in construction, transportation, and nonprofit accounting.
Our Team
Leadership
AJ Singh, Partner
CPA & Enrolled Agent
Certified Public Accountant | Enrolled Agent
U.S. Treasury-Authorized Tax Practitioner
AJ Singh is an Enrolled Agent and Certified Public Accountant with over 15 years of experience in tax strategy. As Managing Partner of G&S Accountancy, AJ leads client relationships and oversees the firm's audit defense practice, ensuring individuals and small businesses receive tailored, comprehensive financial services.
With expertise in federal tax planning, business and individual tax preparation, and IRS representation at all administrative levels, AJ serves as a trusted advisor who optimizes tax strategies to align with each client's financial goals. He is actively involved in the Southern California business community and passionate about building long-term partnerships with the firm's clients.
Neeraj Gupta, Partner
Chief Technology Officer
20+ Years Process Automation | Business Systems | Workflow Architecture
Neeraj Gupta is a Partner and the Chief Technology Officer at G&S Accountancy, where he leads the firm's technology strategy, process automation initiatives, and operational infrastructure. With over 20 years of experience in data management, business systems, and workflow automation, Neeraj is the architect behind the firm's CPA-led automation tools.
Under his leadership, G&S has developed proprietary workflow solutions for bank reconciliation, IFTA compliance, ACA reporting, and client document management - turning manual, repetitive accounting tasks into structured, repeatable processes. Neeraj ensures the firm's technology investments translate directly into better client outcomes: faster turnaround, cleaner records, and less manual burden.
Team
Senior Team
Pooja Gupta
Senior Auditor
Pooja leads G&S's attestation practice with over a decade of audit experience. She specializes in preparing workpapers, analyzing audit evidence, and supervising engagements for nonprofits and businesses across industries. With an MBA in Finance and a Master's in Chartered Financial Analysis, Pooja delivers reliable financial reporting and internal control evaluations.
Lorena Contreras
Manager, Tax Resolution Specialist
Lorena brings deep expertise in tax resolution, payroll management, and multi-industry accounting — including manufacturing, construction, real estate, and retail. Bilingual in English and Spanish, she effectively serves a diverse client base and is known for her attention to detail and dedication to helping clients achieve their financial goals.
Jagvir kaur Mann
Team Member
Dedicated Tax Accountant with a Bachelor of Commerce in Accounting, a CTEC License, and currently pursuing Enrolled Agent (EA) certification. Since 2022, I have been working at GNS Accountancy, specializing in the preparation of individual and business tax returns, assisting with tax resolution matters, and supporting bookkeeping and accounting functions. I also collaborate with marketing teams to develop promotional content and digital media that enhance client engagement and brand visibility.Fluent in English, Punjabi, and Hindi with strong communication and client service skills.
Riya Manocha
Senior Accountant
Riya brings over 10 years of experience in financial accounting, business planning, forecasting, and tax resolution. She holds advanced accounting credentials and has a strong track record handling complex cases with the IRS, FTB, EDD, CDTFA, and other agencies. Her entrepreneurial skills have been invaluable in helping early-stage startups assess their financial positions and navigate growth.
Abhinav Aggarwal
Senior Accountant
Abhinav has been with G&S since 2020, bringing over 10 years of accounting experience. He holds a Bachelor's in Commerce and an MBA in Finance. As Senior Accountant, he specializes in financial projections, bookkeeping, internal management reporting, financial analysis, and sales tax returns — providing accurate insights and tailored solutions to help clients meet their business objectives.
Ashley
Team Member
Profile coming soon.
Purva Maan
Tax & Accounting Intern | CPA Candidate
Purva joined G&S Accountancy in September 2025, bringing a completed Bachelor's degree in Accounting and a passion for public accounting. As the firm's on-the-ground Tax & Accounting Intern, she serves as the key link between clients and the accounting team — collecting documents, coordinating meetings, and ensuring engagements stay on track. Day-to-day, Purva assists CPAs with bookkeeping clean-up, basic tax preparation, and financial statement assembly, while also managing client onboarding, tracking outstanding items, and handling in-office tasks that keep everything running smoothly. She's known for her follow-through, attention to detail, and her ability to make clients feel supported throughout the process. Purva is actively pursuing CPA licensure and is committed to building a long-term career in public accounting.
Team
Our Team
20+ professionals. Two partners. One shared commitment to your success.
Hugo Fernando Quique A.
Audit Manager
20+ years managing audit engagements across financial services, manufacturing, retail, and nonprofits.
Tony Nava
Accountant & Payroll Specialist
10+ years of experience in financial statement preparation, reconciliation, and payroll processing.
Vanessa Rubio
Tax & Compliance Specialist
Specializes in sales tax, IFTA returns, IRS and FTB payments, entity formation, and beneficial ownership reporting.
Sam Perry
Staff Auditor
CPA with over a decade of experience in financial reporting, taxation, audit, and internal controls.
Ryan
US Taxation Specialist
Ryan is a US taxation specialist with extensive expertise in federal and state tax compliance, planning, and advisory. He has passed all four CPA exam papers and completed the required experience hours, with his CPA license currently pending.
Ken Shaw
Team Member
Ken is a US taxation specialist and Licensed Enrolled Agent (EA) specializing in the areas of tax preparation, tax resolutions, and audits. He leverages his deep understanding of the tax code to ensure precise federal and state compliance while providing technical support and strategic guidance through the audit process.
In Memoriam
Preety Gupta, CPA
Co-Founder & Partner
Preety's vision, leadership, and dedication built the foundation this firm stands on today.
Read Preety's StoryGet in touch
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