Support for financial reporting, tax compliance, and strategic transaction planning
Valuation of business interests, illiquid financial instruments, intangible assets, and derivatives
Multiple industries including technology, biotech, business services, consumer products, and finance
We service clients around the world from our offices in the San Francisco Bay Area

Sorbus Advisors LLC is a full service valuation advisory firm

For over 15 years, Sorbus Advisors LLC has been a full service valuation advisory firm supporting financial reporting and tax compliance needs of our clients.  We value business interests, intangible assets, complex financial instruments, and portfolios of illiquid securities.  Our industry focus is on technology, life sciences, business services, e-commerce, finance, and consumer product companies.  We work with clients world-wide from our offices in the San Francisco Bay Area.


Our Mission

Our mission is to help clients navigate the ever growing complexities of global regulatory and transaction environment. With state‐of‐the‐art valuation approaches we help craft financial statements, increase transparency, improve compliance, quantify economic impact of strategic transactions, and enhance corporate governance.

Why Sorbus

We position ourselves as a strategic partner that fulfills all your valuation needs. Our teams provide unparalleled technical expertise, seamless execution, and outstanding client service. Our clients enjoy complete support, from project planning through execution and review by third party observers. We minimize the time you spend on a project, while providing predictability and control.

Our Technology

We are engaged in continuous development of web and software technology tools to add depth and quality to our valuations.  Our technology supports every valuation project, while delivering insights from financial market data and regulatory filings.  


Sorbus professionals offer significant experience in many valuation disciplines such as intangible assets, financial instruments, business valuations, and portfolio valuations.

Some of Our Clients Include

Max Fonarev, M.Sc., MBA, CFA

Chief Valuation Specialist     

Max is a Principal at Sorbus Advisors LLC with over 20 years of valuation advisory experience. His valuation work is critical in financial reporting, tax compliance, and facilitating conversations among strategic partners.  Max concentrates on financial reporting, tax compliance, and strategic planning valuations of intangible assets, financial instruments, portfolios, and business interests.

Prior to Sorbus, Max held senior positions with valuations services teams at KPMG and Armanino. His clients ranged from early-stage start-ups to multinational public corporations. In addition to his extensive track record in the accounting industry, Max brings years of strategic valuation experience with in-house and Wall Street teams of Ligand Pharmaceuticals, Rodman & Renshaw, and Wachovia Securities.

Max received his MBA in Finance from the University of Southern California, Marshall School of Business. He holds B.S. and M.Sc. degrees in Applied Physics and Mathematics from the Moscow Institute of Physics and Technology and an M.Sc. degree in Molecular Biology from Mount Sinai School of Medicine in New York.   Max is a Chartered Financial Analyst (CFA) Charterholder.

Max was born in Kharkiv, Ukraine, and landed on Staten Island, New York in 1993.  Avid trail runner and inspired surfer, he lives with his wife and two children in the beautiful San Francisco Bay Area.

Mat Lee, MBA

Associate, Valuation Services

Mr. Lee is a Valuation Advisory Associate with Sorbus Advisors LLC. Mr. Lee is responsible for financial modeling, comprehensive industry and company research as the key elements of each valuation assignment. He concentrates in valuations of intangible assets, equity and complex financial instruments for clients seeking to comply with IRC 409A, ASC 805, Fair Value financial reporting standards.

Mr. Lee received her MBA in Finance from the University of California, Haas School of Business and her B.A. degree in Economics and Finance from Baruch Collage, City University of New York, and graduated with Magna Cum Laude Honor. Passed the second levels of the Chartered Financial Analyst (CFA) Program and may be awarded the charter upon completion of the required work experience.

Brenda Litsky, MS

Sr. Director, Client Relations

Brenda is a Senior Client Relations professional experienced in developing, delivering, marketing and selling valuation service solutions. She brings over 10 years of experience in accounting industry with emphasis on providing broad range of services to companies ranging from multinationals to venture backed start-ups.

Brenda is a Director of Client Relations dedicated to delivering state of the art valuation solutions that best support a company’s strategic planning and regulatory compliance. She strives to provide a top quality experience for the broad base of constituents including venture capitalists, attorneys, accounting professionals and finance executives with whom she partners.

Prior to Sorbus, Brenda held various positions with FTI Consulting and Arthur Anderson focused primarily on project management and clients relations. She holds M.S. in Communications from San Diego State University and B.S. in Finance and Accounting from the University of California, Los Angeles.

Schedule a Call

Most new projects will require a brief introductory conversation. Unless you are a returning client asking for an update to a old valuation, please use the calendar below to schedule a call with us:

Send a Message

We are located in the San Francisco Bay Area, while our clients cover much broader geography, from Southern California to the East Coast and Europe. Please contact us with questions and inquiries. Also, feel free to stop by on your way to the beautiful Sonoma or Napa Valley.

Schedule a Call