CEO Group (CE-12)
Jamie Ogle
CEO - Lloyd Pest Control
Jamie took over Lloyd’s leadership in 2000, a third generation CEO. Jamie started as the summer janitor while in high school and spent real time doing every job in the field. For almost 90 years Lloyd has been providing award-winning pest solutions for businesses and homes in Southern California and nationwide coverage through their Copesan Partnership. Lloyd provides personal account manager support for commercial accounts and dedicated customer service professionals for phone or scheduling. Lloyd has 250 local technicians in smart phone-dispatched trucks and provides every customer with a web portal for viewing past service slips, billing, and service requests 24/7.
Joined Vistage in 2000
Elizabeth Yan Zhang
CEO/Founder - GeneGoCell
GeneGoCell was founded in 2020 by Elizabeth Zhang, SCYM (ASCP)CM, MBA, CMQ/OE, PhD, to provide top-quality and fast-turnaround customized services in Next-Gen Sequencing (NGS) and flow cytometry analysis to serve the rising precision medicine industry, e.g. cell gene therapy (CGT).
“Love, Trust and Commitment” are the foundations of GeneGoCell.
Joined Vistage in 2018
Nathan Rogge
President and CEO - First Pacific Bank
Nathan is an experienced President/CEO with a demonstrated history of success. Prior to coming to First Pacific Bank, Mr. Rogge was the President and CEO for 15 years at Bank of Southern California where he took a two branch, $50 million bank under a regulatory order and turned it into a $1.7 billion bank with 15 locations throughout Southern California. He successfully completed six M&A transactions and four capital raises. Before that he was with First Republic Bank where he ran the Business Banking Group.
Joined Vistage in 2007
Mary Bixby
Founder/Superintendent/CEO - Altus Schools – A network of California Charter Schools serving students seeking a futuristic environment
Mary Searcy Bixby is an educational leader and author who is widely sought after as a speaker and advisor. She is an expert in leadership training, organizational development, educational reform efforts in America, and the management of processes oriented to sustainable performance, excellence and quality. Mary’s anchor School, The Charter School of San Diego, has been twice awarded recognition for outstanding performance by the Malcolm Baldrige Foundation on behalf of the Office of the President of The United States. The Charter School of San Diego was the first K-12 school in America to receive this honor. Previous recipients include Motorola, AT& T, Solar Turbine, Nestle-Purina, Boeing, Sharp Hospital, Price Waterhouse and several other high-level corporations.
Mary Bixby has been widely recognized for her legendary, courageous and bold leadership. Her awards include prestigious organizations such as the Vistage Leader of the Year Award, The University of San Diego – Remarkable Leaders in Education, The California Council for Excellence as a Role Model for Education, the California Charter School Association Legacy Award, The Charter School Development Center Inspirational Leader, the Harry Hertz Leadership Award, the E. David Spong Lifetime Achievement Award, Women Who Mean Business Finalist (San Diego Business Journal), Woman of Distinction Finalist (San Diego Magazine) and the Bishop Charles Francis Buddy Award for Extraordinary Contributions to Humanitarian Causes to name a few. Mary has been a committed member of Vistage for over a decade.
Whether incorporating humanoid robots in the classroom, including virtual reality at all grade levels, or offering drone certification as part of career training to interested students, Mary is dedicated to making a futuristic education available to all Altus students.
Joined Vistage 2012
Jim Herr
CEO/President - Parron Hall
In 1978, Jim joined Parron Hall and in 1988 assumed control from his father. Under Jim’s leadership, Parron Hall has grown from $6 million in annual sales to sales between $30 and $40 million in recent years. Parron Hall’s history has roots back to 1947.
Though Jim has been active at Parron Hall since 1978, he has, in fact, been involved in the business his entire life. As he says, “having been born into it, I learned a lot sitting around the kitchen table growing up.” His education didn’t end there however–he graduated Magna Cum Lauda with a degree in Finance. The business enjoys continued success due to Jim’s philosophy: “I really allow people to work for our customers without interference from management and I reward outstanding performance. We allow people to excel at what they are good at.” Looking at the average tenure of Parron Hall’s staff, the longstanding list of loyal clients and years of successful ownership, it’s clear that Jim’s leadership style creates a winning environment for everyone.
Joined Vistage 2016
Joy Evers
CEO - Healthtopia Clinics
Dr. Joy Hardison is a board-certified emergency physician. She earned both her MD and MPH in 2009, graduating from Mayo Medical School. Dr. Hardison completed her residency in emergency medicine at the University of Arizona and has since worked in hospitals throughout the Southwest. She is also an adjunct professor at Bastyr University California. Dr. Hardison founded Healthtopia Clinics in 2018 to bridge the gap between traditional medical care and integrative medicine, leveraging the benefits of both practices to provide patients with thoughtful, comprehensive care.
Joined Vistage 2026
Mike DiNorscia
CEO - Grain & Grit Collective
As CEO of Grain & Grit Collective, Mike DiNorscia has created a company that is purpose driven, innovative, and focused on developing top industry talent. Established in 2018, the company currently owns and operates the Little Italy Food Hall, Carnitas Snack Shack, Broken Yolk Cafe, and Sam the Cooking Guy’s signature Not Not Tacos, and Graze by Sam. Grain & Grit Collective is driven by the opportunity to positively impact communities within our establishments and beyond.
Prior to the creation of Grain & Grit, Mike was focused as managing director of his investment company, Sweet 100. Having successfully completed over $25 Million in restaurant related transactions, Mike began his investment career in 2009 with the creation of Restaurant Capital Growth Inc. In creating Restaurant Capital Growth Inc., Mike oversaw an investment in Burger Lounge, a San Diego based Fast Casual restaurant chain. In addition to Restaurant Capital, Mike had co-founded Location Matters. Location Matters is a full service Retail Commercial Brokerage with a specialized restaurant leasing and development team. Mike sold his interest in the company in 2015.
Prior to Location Matters, Mike was employed by Hormel Foods Corporation. While at Hormel Foods, Mike won the Chairman’s Inner Circle Award being recognized as one of the nation’s top foodservice sales representatives.
Joined Vistage in 2021
Brooke P Martindale
CEO & Founder - Cheer Home Care
Accomplished CEO, Entrepreneur, Consultant, and Advisor in the Home Care and Wellness industry. Brooke believes in creating a genuinely successful client/caregiver match, the client’s health and wellness need to be prioritized along with the caregivers and other support team members. Experience includes founding, building out, scaling, overseeing, and monetizing all aspects of a multimillion-dollar people business. She now resides in San Diego and provides that same level of care to her clients there that she did in Boston and that she wishes had been available to her grandmother.
Joined Vistage in 2024
Brent Cowing
CEO and Founder - Protectli
Brent Cowing is a proven, versatile, and effective leader with a robust capacity to navigate diverse challenges. He is a product expert who brings a deep understanding of technology as well as customer use cases to engineering and development. Brent’s comprehensive understanding of design, quality, supply chain dynamics, and product solutions shows he remains dedicated to delivering optimal solutions exceeding customers’ expectations and driving organizational success.
Joined Vistage in 2024
Sherri Neasham
Chairman and CEO – Leadfusion | Professional EOS Implementer®
Sherri Neasham is Chairman and CEO of Leadfusion, a company dedicated to enriching the financial experience for consumers. Since 1995, Leadfusion solutions have engaged more than 1 billion consumers and over 300 financial institutions have trusted Leadfusion to educate and empower their customers. She is passionate about helping others achieve success.
With over three decades of entrepreneurial experience across four different industries, including real estate brokerage, loan portfolio brokerage, SaaS, and internet marketing & sales, Sherri has a proven track record of building and transitioning successful businesses. As an EOS Professional Implementer, she gives CEOs, business owners and their teams the tools and accountability to build the company they love and achieve future success for all.
Her diverse experience and commitment to both business excellence and community impact make her a respected leader and mentor in the entrepreneurial community.
Joined Vistage in 2025.
Daniel E. Gardenswartz
Partner - Solomon Ward Seidenwurm & Smith LLP
Daniel Gardenswartz moved to San Diego in 1993 and has been a partner at Solomon Ward since 2001. He represents businesses and individuals in employment, business, and construction litigation, including complex class action trials and business disputes. Mr. Gardenswartz regularly advises senior executives and in-house counsel on dispute prevention and how to build the strongest possible case. He also provides a variety of legal seminars on topics within his area of expertise.
Mr. Gardenswartz received his undergraduate degree in International Affairs from George Washington University’s Elliot School of International Affairs, where he graduated with distinction and was admitted into the Phi Beta Kappa National Honor Society. He then earned his Juris Doctorate degree, with Highest Distinction, from Emory University School of Law.
Beyond his professional interests, Mr. Gardenswartz and his wife, Allison, have three children. In addition to spending time with his family, he is an avid athlete and enjoys skiing, mountain biking, and endurance trail races.
Joined Vistage in 2024
Jim Holcomb
CEO - RotoCo
Jim founded RotoCo in 1974 with a $1,000 loan to equip his van and began operating out of Hemet, CA. From this simple beginning, Jim has grown the company to be the largest Roto-Rooter franchise in the world. Today, RotoCo operates in San Diego, Santa Barbara and Sacramento counties along with both the Inland Empire and the Central Valley. These rapidly growing areas in California create great opportunities both for the company and the employees. RotoCo prides themselves on leveraging the Roto-Rooter national brand and couples that with the benefits of working with a family business. RotoCo continually invests in its people and its equipment to offer best-in-class services to both commercial and residential property owners throughout California.
Joined Vistage in 2003
Eric Schweinfurter
CEO - Apex Contracting and Restoration
Apex Contracting & Restoration, Inc. opened for business in 2003 with 5 employees with a vision of improving the level of restoration services offered in the San Diego area. Their passion for excellent work and honesty propelled Apex’s growth, allowing them to reach over $5 million in sales by the end of 2006.
As their reputation has grown, so has their ability to serve our customers. Apex now employs more than 55 people and has performed work all over the state of California. Their range of services has grown from restoration services and general contracting to include 24-hour emergency response services for flood and fire; mold remediation; tenant improvements and remodels; new construction; destructive testing and litigation support.
As the continue to grow, Apex is continually mindful of the fact that they achieved such great success in such a short period of time due largely to their dedication to providing the best value to their customers. It is their vision to become the premier contracting, restoration and emergency services company in Southern California, and they believe that their team and philosophy will allow them to achieve that goal.
Joined Vistage 2007
David Kirkpatrick
Global Co-Head of Investment Banking at Marathon Capital
David Kirkpatrick, Global Co-Head of Investment Banking, is based in Marathon Capital’s San Diego office. He is a corporate finance, project finance, and M&A specialist with more than 30 years of experience in the cleantech and renewable energy sectors. At Marathon Capital, David advises clients on M&A buy- and sell-side transactions, corporate equity capital raises, tax equity, and strategic consulting engagements. David focuses on solar, energy storage, wind, e-mobility, biofuels, green hydrogen, and cleantech sectors. In addition to his client activity, he serves on Marathon Capital’s executive leadership team, manages Marathon Capital’s South Korean expansion, and leads a charitable outreach program installing solar resources for low to moderate-income families.
David has advised on many transformative transactions such as the sale of SunPower’s C&I Solutions business to Total Energies and microinverter business to Enphase, multiple corporate equity raises for PosiGen, tax equity raise for Generate’s fuel cell projects, the sale of numerous utility solar & BESS projects for OCI, Capital Dynamics, Hanwha, Arevia, and Samsung, and the company sale of Black Bear Energy, GroSolar, FLS, Peak Clean Energy, and Mainstreet Power.
Prior to Marathon Capital, David held various executive management roles in the energy and cleantech sectors. He was an energy specialist at the Boston Consulting Group, advising Siemens, Southern, and Sempra. David originated and structured $2 billion of wind-related contracts at GE Wind. While at Imperium Biofuels, he ran business development overseeing biofuel related contracts. At NRG Solar, David ran the distributed energy solar vertical. At EDF EN, he was the North American head of M&A, where he started and ran the solar business unit, managing project development & construction, venture investments, and global procurement for GW’s of renewable deployment.
David received a BA with honors from Emory University and was a Robert T. Jones Scholar for a post-graduate year at St. Andrews University. He received his MBA from Harvard Business School, where he was a founding member of the Sustainable Development Society. He is a volunteer professor for HBS Club of San Diego Management Development Program and the Chair of the Board for Cleantech San Diego. David holds Series 24, 63, and 79 licenses.
Joined Vistage 2026
Phil Dowley
Private Investor, Advisor
Phil Dowley served in leadership roles at various businesses located throughout San Diego County for more than twenty years. He is currently self-employed focusing on investment opportunities as well as advising/mentoring other high achieving executives.
Joined Vistage in 2022