Emerald Isle Senior Apartment Homes
Park Mesa Villas
Emerald Isle Senior Apartment Homes
Villa Buena Apartment Homes
Crown Building


G Companies is a successful Southern California based single and multi-family real estate development and property management company.

  • Jim Gianulias

  • David Gianulias

  • Steve Mensinger

    President, Mesa Management
  • John McFadden

    CFO, Mesa Management and G Companies
  • Rob Plavajka

    V.P. of Construction, Mesa Management, Inc.
  • Cort Ensign

    Director of Commercial Leasing, Mesa Management
  • Donna Radack

    Director of Human Resources, Mesa Management
  • Richard Brown

    V.P. of Operations & Marketing, Levendi Winery
  • Lillian Norminton

    General Manager, Levendi Winery
  • Ruth Snyder

    Administrative Assistant/Project Manager
  • Jim Davis

    Corporate Controller, G companies
  • Michelle Gutierrez

    Director of Operations, Mesa Management, Inc.

Jim Gianulias


James C. Gianulias was born and raised in Sacramento, California. He graduated from the University of California, Berkeley with a BA degree in 1962. While attending Cal he played baseball and football.

He is married to Janet and has two children, David and Mindy. His hobbies include fishing, hunting, skiing and golfing.

Jim's core business is as the Chairman of the Board of Cameo Homes, Gianulias Companies Construction, Inc., Mesa Management, Inc., and Levendi Winery, for which he received a gold and silver medal at the Los Angeles County Fair in 2006. He has been involved in the development and management of properties in California, Hawaii, Nevada, and New York for over 31 years. He is currently involved with growing grapes in Napa Valley, California, as well as coffee in Kona, Hawaii.

Jim currently resides in Newport Coast, California. He is involved with the Chancellor's Club and Thesaurus Linguae Graecae at University of California, Irvine. He is a member of the Paul Merage Graduate School Center of Real Estate and TLG at the University of California, Irvine.

David Gianulias

A graduate of the University of California, Santa Barbara, Mr. Gianulias began his career with his sights set on law and real estate development. Inspired by a lifetime of summers working on construction sites in customer service and sales, Mr. Gianulias returned to his roots of Newport Beach eager to contribute to the family business of real estate development. In 1995, Gianulias created Cal Star Development.

Cal Star was created in order to capitalize on the abundance of foreclosures on the market from the early 1990's recession. Working with HUD and a non-profit church group, Cal Star Development was able to obtain properties at $.20 - $.25 on the dollar in order to create affordable housing called "The American Dream" program. Focused mainly on duplexes/four-plexes, approximately 70% of the time, they were able to select a responsible tenant currently in the property, clean up their credit and keep them in the home. The company created opportunities for first-time buyers from South Central LA to Riverside and San Bernardino Counties.

A third generation homebuilder, in 1996 Mr. Gianulias joined G Companies homebuilding division, Silver Oaks Communities adding to the more than 60,000 homes built and sold by his grandfather, Charley Hester. From 1998 to present, Mr. Gianulias' insight into market branding, development project planning and residential sales have put Silver Oaks Communities on the map of the Southern California's Inland Empire. Under Mr. Gianulias' guidance, Silver Oaks Communities successfully purchased, entitled, constructed and sold thousands of homes. With a focus on product positioning and market niche, Mr. Gianulias and team, annually captured an increasing share of the home-buying consumer segmentation.

Steve Mensinger

President, Mesa Management

Steve Mensinger is an experienced leader in the private, public and nonprofit sector endeavors. Steve is currently the President of Mesa Management; a diversified, privately-held Real Estate Management and Development Company with assets throughout the State. Mesa Management’s portfolio includes apartments, offices, retail and senior living communities. Mesa Management has been a leader in real estate management, redevelopment and entitlement for over 40 years.

Steve Mensinger served on Costa Mesa City Council from January of 2011 to December of 2016. In 2014 he was elected to Mayor of the City of Costa Mesa, California. As a long time private sector executive Steve has applied private sector disciplines to public sector problems. Steve balanced the city budget 6 straight years. During his tenure as Mayor, the City had the largest surplus in the City's history. Steve’s transparency and fiscal discipline led him to author a state-wide ordinance recognized as an innovation in municipal government. The first innovation was (COIN) which stands for “Civic Openness In Negotiations” the second (CAN) which stands for “City Asset Needs”. With both these ordinances Steve helped to redefine the expectation of City transparency and expectations with the taxpayers of his City. In addition, Steve authored several other ordinances and policies that have helped reshape the City as a whole. These include; Orange County’s first "Small Lot" ordinance and weekly “Meet the Mayor” listening events.

Steve’s professional career spans more than 32 years as a business leader in the real estate industry. Steve worked in executive positions with Arnel Management Company, The Bethany Group, and SunCal Companies.

Beyond his current public service, Steve is deeply committed to many public and community organizations including: the South Coast Apartment Association, Costa Mesa United, OC Vector Control, The South Coast Metro Alliance, Girls Inc., Boy Scouts of America, The Orange County Sheriff’s Department, The Orange County Sheriff’s Advisory Council, Costa Mesa Pop Warner, Estancia Sports Boosters Club, and Costa Mesa United. Steve is a USC Alumni and member of the Sigma Chi Fraternity and is even part of his County’s local draft board.

Steve is married with two sons and is a 32 year Costa Mesa resident. When he is not working in real estate, he enjoys youth sports, hunting, fishing and wood working.

John McFadden

CFO, Mesa Management and G Companies

John McFadden brings over 30 years of experience in real estate construction, development, and property management. Before accepting the position of CFO for G Companies and Mesa Management, Mr. McFadden served for 4 years as an independent consultant for a variety of property management and development companies, providing accounting and finance services, as well as accounting system implementations.  Prior to that, Mr. McFadden was the Corporate Controller for G Companies for 9 years, and also provided primary oversight of the bankruptcy proceedings that were initiated against the owner (and Cameo Homes) in 2008.  Mr. McFadden has extensive knowledge of accounting, financing, and analysis, with detailed experience in company start-ups, new accounting systems development and implementation, new project analysis and pro formas, construction and permanent financing, affordable tax credit and bond financing.

Mr. McFadden is a graduate of Pomona College with a degree in Economics.

Rob Plavajka

V.P. of Construction, Mesa Management, Inc.

Cort Ensign

Director of Commercial Leasing, Mesa Management

Cort Ensign has been involved in the multifamily and commercial property management industry since 1989. Having built a highly successful property management software and consulting business around the AMSI line of accounting products. Working with many of the largest market leading property management companies in the West, Cort has been actively involved in helping them become innovators and market leaders. Cort brings his unique insights to Mesa to help it achieve market leadership.

Donna Radack

Director of Human Resources, Mesa Management

Donna Radack joined Mesa Management in July of 2013. Ms. Radack has over 20 years of experience in the areas of payroll management, benefit administration, employee life-cycle processing and human resources management. Ms. Radack has worked in a Director position in a variety of Orange County based businesses and industries including Steelcase (Seal Furniture franchisee), OptionEase/ Solium Capital, Hometown National Bank and Taco Bell.

Ms. Radack has a proven ability to identify problems, determine cause and create effective resolutions. She has a solid background as an established employee/employer advocate for problem resolution and strives to maintain a positive, productive and legally compliant work environment free of harassment and discrimination. Ms. Radack attended California State University Fullerton and is currently working towards obtaining her PHR (Professional Human Resources) certification. Ms. Radack is an active member of the Society for Human Resource Management, Professionals in Human Resource Association and National Human Resource Association.

Richard Brown

V.P. of Operations & Marketing, Levendi Winery

Richard Brown attended the University of Southern California and graduated with a degree in marketing from the USC School of Business.

Throughout his career, he has worked for multiple Fortune 500 companies, starting with The Coca-Cola Company, where he managed national hotel, restaurant and gaming properties and was recognized as the Coca-Cola National salesperson of the year for three years running. He continued in the soft drink industry at Quaker Oats beverages, managing distribution for Gatorade and Snapple in the Western U.S., as the top national salesperson.

Disney Sports (a division of the Walt Disney Company) appointed Richard Director of Sales and Marketing for Major League Baseball team, the Anaheim Angles. Brown was then recruited as CEO and president of a professional “A” League soccer franchise for his skill as a ‘turnaround specialist’, and took the fledgling franchise to professional status and inked a $5-million-dollar deal with Pepsi Cola - the largest of its kind in the league at that time - in less than a year.  

Richard eventually founded his own successful boutique agency, RB Sports Marketing, serving clients in well-known franchises such as IndyCar, National Association for Stock Car Auto Racing (NASCAR), National Hot Rod Association (NHRA), Major League Soccer (MLS), National Basketball Association (NBA), Major League Baseball (MLB), World Surf League (WSL) and World Boxing Council (WBC).

With success came multiple opportunities, including Vice President of Business Development for NASCAR’s Winston West team, where he negotiated the largest sponsorship deal in NASCAR Winston West series history with 24 Hour Fitness and the HJ Heinz Company.  

Richard’s diverse experience, both in corporate America and as an entrepreneur, makes him skilled in reciprocal benefit marketing, and branding and brand turnaround via a network of strong alliances carefully developed throughout a diverse career.

Richard has been featured for his accomplishments in publications such as The LA Times, The Orange County Register, Orange County Business Journal, Street & Smith’s Sports Business Journal, Bakersfield Californian, Business Wire, and Soccer Digest Magazine. He has also appeared on ESPN, ABC News and Fox Sports. A native Californian, Brown currently sits on the Board of Surfing Walk of Fame.

Levendi Winery of Napa, California, recently appointment of Richard Brown to helm its premium wine brand, returning him to a sector of an industry that marked early success. He conducts business from the G Companies office in Newport Beach, California.


Lillian Norminton

General Manager, Levendi Winery

Lillian Norminton joined Levendi Winery in 2004. With her knowledge of the company she serves as the General Manager of Levendi, which entails overseeing the day-to-day operations of the winery (Compliance/Bottling/Supply Procurement & Contract Management). Prior to joining Levendi, Lillian worked for various Orange County real estate developers and interior designers managing their business operations. She is an Orange County native and graduate from Cal State Long Beach. Since joining Levendi, Lillian has succeeded in becoming a Level 1 Sommelier, and has also completed the Level 3 Certification from Wine & Spirits Education trust.

Prior to joining Levendi, Lillian worked for various Orange County real estate developers and interior designers managing their business operations.

Lillian is an Orange County native and graduate from Cal State Long Beach. Since joining Levendi, Lillian has succeeded in becoming a Level 1, Sommelier and has also completed the Level 3 Certification from Wine & Spirits Education Trust.

Ruth Snyder

Administrative Assistant/Project Manager

Ruth Snyder joined G Companies in 2005 and over the years has worked in several different departments within the organization (Administrative Assistant/Homebuilding Assistant/Compliance Management/Property Manager Assistant).  In January of 2022 Ruth was promoted to the Administrative Assistant/Project Manager for the Construction Division of G Companies.

Ruth's professional career spans 2 decades in the Real Estate industry, with her first 10 years focusing on multi-family property management. She started in the multi-family industry working for Winthrop Corporation in the State of Arizona as a Leasing Consultant and then Assistant Business Manager. Upon her return to her home state of California she quickly rose up the corporate ladder in the multi-family industry, becoming a Regional Manager, then TCAC Compliance Coordinator and finally Executive Assistant with Bertram Partners.

Ruth was first hired at G Companies as an Executive Assistant to Jim Gianulias, the founder of Cameo Homes and G Companies. She was promoted to Administration Manager, where she managed the compliance of business entities, contracts, and insurance for the Mesa Management and G Companies Homebuilding portfolio. In 2009 Ruth took on the added role of Assistant Project Manager for Three G Development, where she was involved in all aspects of homebuilding, from planning, budgeting, contract administration and reconciliation, to BRE and sales coordinator for developer.

Ruth is a Cum Laude graduate of Irvine Valley College, with an associate degree in Psychology. Her love for learning and accomplishments has been her formula for success.

Jim Davis

Corporate Controller, G companies

Jim Davis joined Mesa with a little over 20 years of combined public and private real estate accounting experience.  After graduating from Cal State Fullerton, he began his career at a large local firm specializing in real estate taxation.  From there he went into private industry and has served in various roles developing commercial property from strip malls to industrial warehouses.  He has also spent time in speculative investment funds with portfolios ranging from multi-family to industrial portfolios through both private vehicles and REITs.

Michelle Gutierrez

Director of Operations, Mesa Management, Inc.

Michelle Gutierrez joined Mesa Management in 2010, holding her Real Estate Appraisers license prior to pursuing her passion for Property Management. Michelle offers extensive knowledge of the Real Estate industry with over a decade of experience in Multi-family operations and most recently in Commercial Property Management. Ms. Gutierrez has held multiple on-site management roles, with experience in 55+ communities, and student based housing. Ms. Gutierrez received her Accredited Residential Manager (ARM) IREM designation in 2019.