WHY US
Investment real estate specialists with over 75 years of combined experience in the Greater Los Angeles area
The team of Darrell Levonian, Gabriyel Mamikonyan, and Harry Keshishian are members of the Kidder Mathews Investments group. Kidder Mathews is the largest fully independent commercial real estate firm in the Western U.S., with 900 real estate professionals and staff in 19 offices in Washington, Oregon, California, Nevada, and Arizona.
the team
Darrell Levonian brings deep expertise gained through consistent success specializing in real estate solutions for investment property owners in Southern California and Greater LA—representing a broad range of family office, regional, national, and institutional clients.
Darrell joined Kidder Mathews in 2018 and was pivotal in the firm’s growth in Southern California, launching the Century City office as Managing Director. Now a shareholder and member of the board of directors, he helps guide the company’s ongoing strategic direction.
Previously, Darrell served as President of the Charles Dunn Company, where he developed new service lines and advanced the firm’s position in the market. Throughout his professional life, he has recruited and mentored hundreds of professionals, including numerous from Charles Dunn to form Kidder Mathews’ Century City office—laying the foundation for the company’s continued success in Greater Los Angeles.
Earlier in his career, Darrell quickly adapted to a commission-based environment upon entering the industry in south Orange County during an economic downturn—an experience that fueled his entrepreneurial mindset. He went on to co-found the Bank of Whittier N.A., where he served on the Holding Company board, the board of the bank, and multiple committees, and where he remains a shareholder today. He also held leadership roles as general manager of sales and chair of another regional brokerage, significantly expanding the firm’s commercial brokerage division over an 11-year span. His expertise was in all business lines of brokerage spanning from Northern California to San Diego. Along the way, he assembled real estate partnerships as a principal and invested with partners.
Darrell is widely recognized for his leadership, commitment to high professional standards, and dedication to helping others succeed—earning the respect and loyalty of clients and colleagues across the industry.
Gabriyel Mamikonyan has nearly 20 years of experience in real estate and affiliated industries, with the majority of his career dedicated to specializing in the acquisition and disposition of commercial real estate assets throughout Southern California. He brings a deliberate focus on owner representation—anchored in integrity, long-term client relationships, and strategic results.
Gabriyel’s expertise is centered on retail and office properties, with additional experience in industrial, land, mixed-use, and multifamily assets. He has guided clients through numerous tax-deferred exchanges across California and nationwide and offers detailed financial analysis, underwriting, due diligence, and capital placement to support investment goals. He has built a strong track record advising property owners, investors, and owner-occupiers on complex transactions.
Trained in finance and economic theory, Gabriyel is recognized for his analytical approach and has consistently ranked among the top performers in his field. In addition to real estate advisory services, his background includes mortgage banking and construction management, serving both private and institutional clients.
Prior to joining Kidder Mathews, he was Executive Vice President of Apollo Investment Group at Keller Williams World Media Center, a full-service commercial real estate firm specializing in investment sales.
Harry Keshishian has more than 15 years of experience in the acquisition and disposition of commercial real estate. He focuses on retail properties for investors and occupiers across Southern California, with additional expertise in office and industrial assets.
Throughout his career, Harry has been recognized for guiding clients through complex transactions and delivering solutions that create long-term value. He brings advanced expertise in market analysis, property evaluation, and transaction management, supported by in-depth knowledge of each property and a clear focus on achieving client goals. This approach has earned him lasting relationships with property owners, investors, and occupiers, as well as a reputation for trust and loyalty.
Prior to joining Kidder Mathews, Harry served as Executive Vice President of Apollo Investment Group at Keller Williams World Media Center, where he was instrumental in advising clients through competitive market conditions and executing a broad range of transactions.
Outside of his professional work, Harry is a multiple-time state and national chess champion. Having grown up in the chess world, he carries the lessons of strategy and discipline into every aspect of life. He is also active in his children’s pursuits, whether supporting his daughter at elite gymnastics competitions, cheering on his oldest son at travel soccer tournaments, or teaching all four of his children the game of chess as a tool for critical thinking, patience, and decision-making.
testimonials
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The team knows what it takes to pick out a qualified buyer who will make a transaction come through. I knew the sale I wanted was “as is,” because when you have wiggle room, buyers generally will try to renegotiate the deal as you progress. They perfectly worded the transaction to give me ultimate protection, and this shows their experience in the business.
They were handling all calls 24/7, coordination, and numerous things that happen in a transaction such as mine. The property sold in a timely manner for the asking price.
They are pros at recognizing the best possible buyer, which is the number one thing in a commercial deal. I highly recommend their service to anyone dealing in commercial real estate. They knew what I wanted, and they delivered.
Thomas L. Bowman
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It took less than 10 minutes to see that this was the team to sell our property. They listened to what I said. Their questions were questions I would have asked. They wanted to know how we saw our buildings. Saying it differently, they listened to what we wanted to accomplish before giving their opinion. It was about us, not them. I knew immediately, we had found our realtor to sell our building. We had a team with the same purpose. I knew they had a plan, and it worked. The question was never “are they going to succeed,” but ”do we have a plan in place to move.” In all candor, it all happened so quickly and at a higher price than expected.
Would I hire them again? I already did. They are looking for another building for me closer to my home in Thousand Oaks. This is the level of confidence I have in these professionals.
Gregory C. Pyfrom, Sr., Esq.
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From the first meeting, I knew I had found the realtors for me. They were very professional in laying out a strategy to sell the building, and sure enough, we had two offers for almost full price within a week or two. They guided the process through the pitfalls that invariably surface when selling a commercial project with appraisals, loans, and inspections all involved.
In the end, it all worked out, and I would not hesitate to use them again. They know what they are doing, and I would recommend them to anyone who needs commercial real estate services.
Chris Wrightsman
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The team was extremely helpful and went above what a “typical” real estate agent would do by helping us whenever an unexpected situation might occur. The team represented us at all times with our best financial interests at heart as well.
Donna Schram
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I would like to thank the team for the excellent service they provided my husband and me in selling our office building. They were friendly and helpful throughout. And despite the Coronavirus pandemic, they quickly sold the building for a higher price than we had hoped for. They always stayed in good communication with us so that we knew what was happening. This was an excellent real estate experience, and I highly recommend them.
Alexandra Hopkins
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The team has been a pleasure to work with in all facets. In addition to being effective in getting us the best deal, they are always available to provide support and answer any questions we have. Also, they go about their business in a hard-working and genuine manner, which is a great atmosphere to be around. If you are looking for a firm that you can trust to get you the best deal and provide you with a fantastic overall experience, I highly recommend signing with them.
Mike Amorelli
kidder mathews overview
the edge in your market
For nearly 60 years, our clients have gotten the best of both worlds — independent counsel from trusted experts, working as part of the largest privately held commercial real estate firm in the Western U.S. Today Kidder Mathews has over 900 real estate professionals and staff in 19 offices in Washington, Oregon, California, Nevada, and Arizona.
Kidder Mathews SERVICES
Commercial Brokerage
Asset Services
Valuation Advisory
Debt & Equity Finance
AWARD-WINNING SERVICES
210+
Times Ranked as a Largest CRE Firm
100+
Awards for Best Places to Work
10+
National Awards for CRE Marketing
6X
Inc. 5000 Fastest Growing Private Companies
Commercial Brokerage
$9B
average annual transaction volume
500+
no. of brokers
Asset Services
54M sf
management portfolio size
800+
assets under
management
Valuation Advisory
2,700
average annual assignments
42/23
total no. of
appraisers/mai's
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client name, company
