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Business Details
37 Years
experience
Strategic Real Estate Investment Solutions
Founded in 1989, RIO Company has established itself as a leading real estate investment firm in Southern California. Our entrepreneurial strategy focuses on identifying undervalued properties and repositioning them for maximum returns. With over three decades of experience, we specialize in multifamily, office, industrial, and retail properties across seven Western U.S. states. Our team leverages deep market knowledge and a proprietary network to source unique opportunities. We prioritize disciplined asset management to enhance net operating income while maintaining tenant quality of life.

Our principals have executed over $600 million in transactions, consistently achieving annual returns exceeding 15%. We combine hands-on property management expertise with strategic financial planning to optimize asset value. Our track record demonstrates success in both core and value-added investments. We maintain strong relationships with brokers, financial institutions, and industry partners to facilitate efficient transactions. Our approach balances aggressive value creation with prudent risk management to deliver superior investment outcomes.
Services
Multifamily Investments Office Building Acquisitions Industrial Property Management Value-Added Opportunities Debt Investments Joint Ventures Asset Repositioning Portfolio Sales Property Disposition Market Analysis
Details
  • Year established: 1989
Highlights and features
  • We have over 30 years of real estate investment experience in the Western U.S.
  • Our principals have executed $600+ million in successful real estate transactions.
  • We combine hands-on property management with strategic investment planning.
  • Our value-added approach consistently delivers annual returns exceeding 15%.
  • We maintain direct relationships with brokers and financial institutions for efficient deals.
Services
Multifamily Investments
We specialize in multifamily property investments across the Western United States. Our strategy focuses on acquiring well-located assets with value-add potential through operational improvements. Our extensive experience in apartment management enhances net operating income while maintaining tenant satisfaction.
Value-Added Opportunities
We target underperforming properties with temporary operational or management challenges. By implementing strategic improvements, we reposition these assets for premium pricing while maintaining disciplined risk management throughout the process.
Debt Investments
We provide debt financing secured by real estate assets through structured investment vehicles. Our approach combines rigorous due diligence with flexible terms to create mutually beneficial financial solutions for property owners and investors.
Joint Ventures
We structure collaborative investment partnerships with property owners and developers. These ventures combine our capital resources with local expertise to maximize returns across various real estate asset classes.
Asset Management
Our comprehensive asset management services optimize property performance through strategic planning and operational improvements. We implement data-driven approaches to enhance cash flow while maintaining property value and tenant satisfaction.
People
Robert Tamkin
President
Founder with 30+ years of real estate experience, having executed $600M+ in transactions. Started in property management before establishing RIO Company in 1987. Focuses on strategic investment decisions and operational improvements.
Ubteen Mozaffari
Director of Acquisitions
USC graduate with $400M+ in real estate transaction experience since 2006. Manages acquisition strategy and execution across Western U.S. markets. Brings analytical expertise to evaluate investment opportunities.
Questions
What geographic areas do you focus on?
We primarily invest in California, Nevada, Colorado, Utah, New Mexico, Washington, and Oregon.
What property types do you invest in?
Our focus includes multifamily, office buildings, industrial facilities, and retail properties.
What investment strategies do you employ?
We use a combination of core, core-plus, and value-added strategies depending on market conditions.
What transaction sizes do you handle?
We consider investments from $2 million up to $50 million based on property type and strategy.
How does RIO approach asset management?
We combine hands-on property management with strategic financial planning to optimize returns while maintaining tenant quality of life.
Reviews (2)
Ruby R.
Oct 22, 2021 Report
Terrible company with very incompetent office workers. This review in no way shape or form a reflection of Julie the manager of 18547 Saticoy. This place has racist boomers residing in this complex. Specifically apt 2 and apt 7. It seems that the racist folks who reside here for 30+ years have some sort of entitlement. Was accused of trying to steal the laundry machines when they were being utilized to... you guessed it!! Wash my clothes. Neighbors were intrusive, insane when they were on their drug benders. Specifically Judy and Darrell from apartment 2. Neighbors who would bang on your walls
Tyrone A.
Aug 27, 2018 Report
Worst company ever! Do not rent here ever! I repeat, scam artist run this company. The worst place to live! They do a lot of things without notice, like go into your property and balcony to do maintenance. Give away your parking spots and saying if you want it back you have to rent it out. Our apartments have been broken into a lot more lately and zero notices from the management company. We had to find out by talking to our neighbors. They put up a handwritten note on the gate, to say keep gate closed. They are very rude and unprofessional. They try to instigate tension between tenants, saying