CPA's Geoffrey Kulik and Charles Sterck

Directors Geoffrey Kulik and Charles Sterck

A Public Accounting Firm Dedicated to Your Success

You want your accounting firm to be properly licensed, comply with all insurance requirements, and to be recommended by its existing clients. American Ratings Corporation, an independent third-party, certified Sterck Kulik O’Neill in each of these areas in 2005 and annually since then.

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You want your accountant to be an active, up-to-date participant in the field. And, you want your accountant to be an enthusiastic member of the wider society, in touch with area business trends, and involved in building a solid, dynamic community.

Sterck Kulik O’Neill is proud of its professional credentials and affiliations.

Check Out Our Credentials

Credentials and Professional Licenses

Most business executives and individuals are aware that in order for a qualified accounting professional to use the term “CPA” (Certified Public Accountant) that they MUST pass a series of exams, attend continuing education courses, and have a minimum amount of professional service time. These standards are dictated by the governing California Board of Accountancy.

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While many individuals and small firms advertise that they provide bookkeeping, accounting, or tax preparation services, they may not be board certified. Be sure to ask if they have their CPA credentials, and ask them for their license number.

  • Check the license status from the California Board of Accountancy web page or call the Board at (916) 263-3680. Specifically, make sure that the CPA’s license is current and inquire whether there has been any disciplinary action taken against the licensee.
  • Ask if the CPA has been renewed with continuing education and how long the firm/he/she has been licensed.
  • Some CPAs are authorized to provide services including attest engagements while others can provide accounting, compilation preparation, management advisory, financial advisory, tax and consulting services but will not be authorized to sign reports on attest engagements. Make sure you determine what services you require for your business and select a CPA with appropriate qualifications.

RINA Accountancy Corporation, which Sterck Kulik O’Neill accounting group is a part of, is a licensed firm, and its directors and senior team members are individually licensed Certified Public Accountants in good standing.

Active Member of Leading Professional Associations

RINA + Sterck Kulik O’Neill is an active participant in the following nationally recognized professional accounting associations:

Customer Satisfaction Verified by an Independent Third Party

Diamond Certified AwardIn 2005 our clients’ satisfaction let us earn the Diamond Certified Award for Quality.  Our clients have been surveyed every year since then, and they have continued to express their satisfaction with our service!

Most recently our clients gave our service a 94% satisfaction rating in an independent survey conducted by Diamond Certified.  Over 94% of our clients said that they plan on allowing Sterck Kulik O’Neill to help them in the future.

In addition, Diamond Certified’s approval process verified our good standing with consumer boards, our insurance companies, and the State of California.


About the Sterck Kulik O’Neill Accounting Team

Sterck Kulik O’Neill Joins RINA January 1, 2018!

Sterck Kulik O'Neill is part of RINA“RINA accountancy corporation” is a regional full-service accounting and consulting firm with offices in San Francisco, Oakland and Walnut Creek, California as well as Bellingham, Washington. RINA serves closely-held businesses and their owners, high-net-worth individuals and families, and many not-for-profit organizations and private foundations.

Sterck Kulik O’Neill became a part of the RINA team on January 1st 2018. Our office remains on Post Street in San Francisco and all Sterck Kulik O’Neill team members were asked to join the RINA firm.

Sterck Kulik O’Neill merged with RINA to allow SKO’s partners – Charles and Geoffrey – to spend more time with clients and less time on administration and overhead duties. With the addition of SKO’s team, RINA now has approximately 100 Certified Public accountants and paraprofessionals.

Charles and Geoff have been familiar with RINA for many years and have long admired RINA’s organization. The firms share the same professional focus: businesses and their owners. They also place the same importance on employee well-being and development.

Charles and Geoffrey will be part of the RINA Sterck Kulik O’Neill management team.

Charles R. Sterck, CPA

Charles R. Sterck
Charles R. SterckPrincipal
Charles has served clients in the retail, wholesale, restaurant, real estate, construction, winery, non-profit, as well as various service industries for over 38 years. He has extensive experience in strategic planning, systems design for both accounting systems and operational systems, team and customer focus groups, facilitation of business growth roundtables and the structuring of sales and purchases of businesses. In addition, he is very experienced in accounting and auditing, as well as tax preparation. Charles has done national training while a member of an international CPA firm and has taught at Univer­sity of San Francisco, City College of San Francisco and Golden Gate University. He joined the firm in 1985.

Geoffrey Kulik, CPA

Geoffrey Kulik
Geoffrey KulikShareholder
Geoff is the leader of RINA+Sterck Kulik O’Neill’s applied technology practice and he also works on tax and general accounting issues. He holds a Bachelor of Science degree in physics from Harvey Mudd College. Geoff’s scientific methodology training aids him in helping clients use technology to meet their accounting and business development needs. He joined the firm in 1986.
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RINA + Sterck Kulik O'Neill accounting group, inc.
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