G3 Consultants Inc. started in 1997 as Guillermo's Tax & Bookkeeping Services with a handful of clients and with the belief that if we provided a quality product with exceptional personal service at a reasonable price, the firm would become successful.  Twelve years later, G3 Consultants Inc has over 2,000 individual and business clients. We have built our business through referrals from satisfied clients throughout the years. We are proud of our history of continuity and quality and we invite you to join our ever-growing list of clients. Come see for yourself just what personalized service can mean to you.

Our Principle

Our company is based on the principle that understanding of your current financial situation is vital to successfully making prudent decisions concerning your future financial condition.

If you have any question about your tax liabilities, your current business situation or you wish to schedule an appointment, send us an email at info@g3taxconsultants.com or call us at (925) 265-4421.

G3 Consultants Inc. has been providing quality tax, bookkeeping and accounting services to small businesses and individuals.

The cornerstone of our success is our commitment to providing quality and timely services to our clients at a very affordable rate combined with excellent personal service.