Trusted advisors to the highly
successful since 1964

Welcome to GROCO

Greenstein, Rogoff, Olsen & Co. (GROCO), Trusted advisors to the highly successful since 1964

Offices in Fremont and Palo Alto, CA, accommodate clients throughout Silicon Valley and the world. Our CPAs specialize in tax planning and tax preparation for high net worth individuals, complex and international returns. Catering to Entrepreneurs, High Net Worth, Venture Capital Communities and Business Leaders.



Own a Vacation Home?

It’s summer and that means a lot of people are on vacation. For the world’s wealthiest individuals that means trips all over the world to many exotic and exclusive places. It also means trips to vacation homes. If you count yourself among the wealthiest people in the ...

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Tim Draper: Creating the Worlds Most Successful Venture Capital Firm

Where to Retire Rich

You’ve spent your lifetime accumulating wealth through your employment and other business endeavors. You have been successful at what you do and now the time has finally come when you’re ready to ride of into the sunset, so-to-speak. It’s time for you to kick up ...

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Scott McNealy: Going Beyond Sun Microsystems

Legal Settlement and Taxes

Many people are involved in legal business matters every day. When it comes to these types of cases, money is almost always at stake. Whether one party is suing another party for breach of contract or one company claims another company cheated them ...

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Joe Lacob: Making the Golden State Warriors a Championship Team

GROCO Blog

If You Win the Big Jackpot Expect the IRS to Coming Knocking

Many people from all over the country enjoy gambling. Whether it’s big time poker, playing the slots or b...

Clinton Offers Idea of New Tax Credit for Certain Businesses

While democrats and republicans will continue to fight it out over taxes and how to improve our economy, ...

So Just How Did Those Scammers Break Into the IRS Website?

In early June, the IRS announced to the public that it had allowed thieves to steal the private informati...

You Could Be Paying More Taxes on Your Rhode Island Vacation Home

Many of the world’s wealthy enjoy the luxury of having a vacation home, or perhaps several vacation homes...


Our Professional Services Include:

Tax Planning , Corporate, Partnership & Trust Tax Preparation, International Tax Services , ESOP Structure Alternatives, Non-Profit Organization Returns, Shareholder Tax Issues , Stock Option Planning, Payroll and Sales Tax Consulting, Federal and State tax Preparation, 1099 Tax filing, Foreign Account Reporting, Accounting Services, IRS Representation, Entity Selection, Tax Audits, Preparation of Financial Statements, Certified Audits, Reviews, and Compilations, Cash Flow Analysis & Projection, Trust Accounting, Bookkeeping Services, Strategic Management Consulting, Start-up Company Planning, Compensation & Benefit Plans, Mergers and Acquisitions, Entity Restructuring, Employee Ownership, Research and Development Studies, Business Valuations, Financial Consulting, Review of Contracts, Revenue Recognition Strategies, Technology Consulting