Meet the Team


Joseph O. Oltmans II Chairman Emeritus

With Oltmans Since 1964
USC, Los Angeles, B.S. Real Estate
Joseph O. Oltmans II, a third generation builder, has been with Oltmans Construction Co. for over five decades. He has served in a variety of management positions, including project manager, vice president, and, later, president in 1982, chief executive officer in 1993 and chairman of the board in 2003. In 2019, Joseph formally announced his retirement but continues as chairman emeritus. His leadership style has always reflected strength in the continuance of the long-standing, solid core of the company built on a foundation of high values--integrity, dependability and responsibility--set by his late father, O.H. “Bud” Oltmans, and his late grandfather and Company founder, J.O. Oltmans.

John Gormly Chairman of the Board / Chief Executive Officer

With Oltmans Since 1975
California State University, Long Beach, B.S. Construction Technology
John Gormly, CEO, oversees all corporate operations and divisions and is responsible for building long-term partnerships, developing new market areas, and advancing safety and quality programs. John built his over 40-year construction career with Oltmans Construction Co. starting as an estimator-trainee in 1975. He quickly rose through the various ranks of estimator positions, followed by project /construction manager positions, and later moved into the business development arena. John earned the title of vice president /director of sales and marketing in 1984. He was senior vice president of the company in 1988, a position he held until 2005 when he was named president. John assumed the role of Chairman of the Board/CEO in 2019. John is a member of FMI, a national leading construction executives peer group.

Charles Roy President

With Oltmans Since 1984
University of California, Los Angeles, B.A. Economics
Charles “Charlie” Roy joined the Oltmans Construction Co. team of professionals in 1984 in the Estimating Department. From there, he eventually transitioned into a sales position before moving into the position of director of Oltmans’ Special Projects Division in the 1990s. In 2006 when Charlie was promoted to the position of vice president, Oltmans Special Projects Division had grown from a small TI group to representing $50M worth of contracts and producing approximately 150 projects annually. In 2018, Charlie was named senior vice president, and in 2019, was named president. He takes a leadership role in managing the company’s overall operations, resources, and assets. Bringing almost four decades of construction experience from every level of the company to his current position, Charlie has invaluable insight to each facet of the business enabling him to lead Oltmans Construction Co. successfully through the COVID-19 pandemic and well into the 21st century.

Gerald Singh Senior Vice President, Business Development

With Oltmans Since 1994
University of Southern California, Los Angeles, B.S. Real Estate
Gerald Singh joined the Oltmans Construction Co. team of professionals in 1994. As a Business Development Executive for the firm for nearly two decades, Gerald has earned his well-respected niche in the industry as a highly regarded expert in the business development community specializing in the commercial and industrial marketplaces. Further known for his high set of standards and ethical business practices, Gerald keeps vigilant with a primary focus on his ultimate goal to create long-lasting client relationships while initiating new business opportunities in the commercial, office and industrial arenas of the southwestern region of the United States.

Tony Perez Senior Vice President, Sales & Solar Energy Systems

With Oltmans Since 1983
California State University, Long Beach, California, Bachelor of Science/Construction Management
Tony Perez over 40 years of experience in providing preconstruction and construction estimating services in the construction industry. As Senior vice president, he oversees all phases of estimating services that the Oltmans’ preconstruction team provides including pre-construction services, conceptual budget estimating, concrete and general estimating services. Tony offers not only his valuable expertise, but his keen awareness of current market conditions.

Jason Kakimoto Vice President, CFO

With Oltmans Since 1996 University of California, Los Angeles, California, B.A. Business Economics Jason Kakimoto was named vice president and member of the board in February 2018. Jason holds a key position in the company’s accounting operations as chief financial officer. His main responsibility includes managing the Accounting Department’s daily operations such as, preparation of all project billings and disbursements of subcontractor and material draws, and monitoring the preparation of the final cost summary reports on all projects. Jason is a graduate of UCLA with a Bachelor of Arts degree in Business Economics. Following his college graduation, his career began as an auditor with the firm of Ernst & Young LLP in Los Angeles. Jason joined the Oltmans Construction Co. team in June 1996 as an assistant controller and was promoted to the position of controller in 2001 and vice president in 2018.

Greg Grupp, CPA, MBT Vice President, Real Estate Services

With Oltmans Since 1989
California State University, Northridge, B.S. in Business Administration, Accounting
University of Southern California, Los Angeles, California, Masters in Business Taxation, Real Estate
CPA, State of California
CDRE License No. 01906770 Broker
Greg has over 30 years of experience in real estate, accounting and finance. As vice president and chief financial officer of Oltmans Real Estate Services, Greg oversees the group which manages over 9-million s.f. of commercial property in Southern California. He is responsible for maintaining, at the highest level, the cash management of all partnerships, investments, budgets, investor relations and financial reporting. His team also provides client services such as tax returns as well as structuring real estate acquisitions, dispositions and tax-deferred exchanges.

Greg also volunteers as Assistant Scoutmaster for the Boy Scouts of America and has been involved with the organization for 12 years.

James Bogle, MBA Vice President, Estimating

With Oltmans Since 2011
University of Southern California Los Angeles, MBA Concentration in Real Estate Finance
California State Polytechnic University, Pomona, California, B.S. Construction Engineering & Management
Riverside Community College Riverside, A.S. Engineering
As vice president of Estimating, James assumes the vital role of overseeing the company’s preconstruction and estimating services and staff. James’ role is to understand any special requirements relative to the client’s needs and expectations per sector and environment. This understanding enables him to formulate comprehensive cost proposals for clients, either on a Construction Management, Negotiated or Hard Bid Basis.

Chris Bell Vice President, Production

With Oltmans since 1997
California Polytechnic State University, Pomona, Bachelor of Science, Construction Management
With over 30 years of construction experience, Chris Bell has overseen over 10 million s.f. of construction product valued at over $300 million. As vice president of Production, Chris is responsible for the executive management and strategic planning efforts of Oltmans’ Production department. He leads a staff of over 25 project managers, quality control managers, engineers, and assistants. Before becoming vice president in 2020, Chris served as the senior director of Production, senior project manager, project manager, and project engineer.

Anjana Bhowmik, Director of Operations, Strategic Markets at Oltmans Construction
Anjana Bhowmik, LEED AP Senior Director, Production

With Oltmans Since 2015
Texas A&M University, College Station, Texas, Master of Construction Management
Anjana brings to this role over a decade of experience in engineering, project management, and architecture since her entry into the industry in 2005. Anjana previously served as an Oltmans Construction project manager from 2015 to 2018. She has been responsible for the management of notable healthcare and institutional projects such as Downtown West Medical, Kaiser Permanente Santa Monica, and Art Center College of Design, among many others.

Joe Pike Senior Director, Field Operations

With Oltmans Since 1983
Carpenters Training Center, 4-Years
Joe Pike has over 35 years of construction experience beginning in 1983 as a carpenter apprentice working alongside some of the most experienced superintendents in the industry. Over the course of his career, Joe has maintained a perfect record of delivering projects on schedule. With his appointment to Senior Director of Field Operations, Joe brings this outstanding track record and construction expertise to all of Oltmans Construction Co.’s future projects, providing invaluable oversight and advice in the areas of construction scheduling.

Jackson Miller Senior Director, Special Projects

With Oltmans Since 1988
California State University, Long Beach, B.S. Construction Management
Jackson "Jack" Miller manages and leads the Oltmans’ Special Projects Division (SPD). Jack holds responsibility for all aspects of sales, estimating, project management and field operations in connection with the division. SPD’s staff has served our clients for over 30 years and consists of a team of highly qualified project managers, estimators and field employees. The SPD portfolio encompasses high-end tenant improvements, tenant build-outs, remodels, renovations and additions, historical restorations and seismic upgrades as well as new construction of specialized projects such as creative offices, retail, religious and educational facilities. Jack oversees approximately 150 projects annually representing a volume of $60-$80 million dollars. Find out more about Special Projects.

Joanne Robinette-Cruz Senior Director, Human Resources

With Oltmans Since 1997
California State University, Fullerton, California, B.A. Accounting
As Senior Director of Human Resources at Oltmans Construction Co., her main responsibilities include administering employee benefit & retirement plans, coordinating new employee/applicant offer letters, background screening, orientations and employee on-boarding. She also ensures company compliance with government laws and regulations, and with collective bargaining agreements, prepares all governmental reports, resolves personnel issues, maintains company policy & procedures and coordinates all personnel required training.

Bobbi Hoffman Director, Safety

With Oltmans since 2020
Meadows-Draughon Business College, New Orleans, Louisiana
Joining Oltmans Construction Co. in the beginning of 2020, Bobbi is a proven construction safety professional who brings over 30 years of knowledge and experience as safety manager to Oltmans Construction Co.’s projects. Throughout her career, she has been involved in all aspects of safety monitoring, audits, inspection, site safety planning, safety training, equipment maintenance, and execution of work stoppage orders, AHA (Activity Hazard Analysis), IPP, APP writing, and beyond.

Joshua Boswell Director, Preconstruction

With Oltmans Since 1997
Ventura Community College
State of California, Department of Real Estate Practice and Appraisal
Director Preconstruction Services, Josh Boswell is headquartered out of the Oltmans Northern California Regional Office. As director, Joshua “Josh” Boswell's responsibilities include tracking potential opportunities in the Northern California market, preparing conceptual cost analysis, feasibility studies, providing value engineering considerations, assisting in the design-build team selection, contract negotiation and project buy-out. He continues to establish innovative procedures in our Preconstruction Department, working closely with our clients, consultants, and the subcontractor community to bring conceptual designs to the ultimate construction for our Company’s unique project portfolio.

Troy Griffin Regional Director, Southwest Operations

With Oltmans since 2014 Arizona State University, Tempe, AZ - Ira A. Fulton College of Engineering & Del E. Webb School of Construction - Bachelor of Science in Construction Management With the addition of the Oltmans Construction Co. Nevada office in 2019, Troy Griffin leads as the area's regional director, strengthening a commitment to Nevada's industrial and commercial markets. Troy oversees all projects in the area, and introduces the company's nearly century-old business and building standards to Nevada, growing Oltmans' reach in the region. Troy has a background in construction management and over two decades of industry experience as a project manager and project engineer. He became regional director in 2020.

Dan Wozniak Regional Director, Northern California Operations

With Oltmans since 1996
Purdue University, Indiana - Bachelor of Science in Construction Technology & Member of the Association of Applied Science, Civil Engineering United States Marines - Sergeant E5, 1969-1971 LEED AP
Dan Wozniak oversees Oltmans Construction Co.'s ongoing interests in Northern California, responding to our clients' increasing interests in the Bay Area industrial market. Dan is not only a seasoned project manager with over four decades of industry experience, he offers our clients invaluable insight as a longtime Oltmans employee. Dan assumed the role of regional director in 2020.

Thanh Nguyen Operations Director, Amazon Services Group

With Oltmans since 2015
University of Phoenix, Bachelor of Science, Business Administration
As operations director of Oltmans Construction's Amazon Services Group, Thanh oversees a specialized team dedicated to meeting Amazon’s fast-tracked, accelerated project schedules. Thanh brings over three decades of construction experience to his work, and specializes in commercial, industrial, e-commerce, concrete tilt-up, warehouse and distribution, Infrastructure, healthcare/OSHPD, residential, and site-work projects. Thanh joined Oltmans in 2015 as a senior project engineer, was promoted to project manager in 2018, and became operations director of the Amazon Services Group in 2020.

Brian Irvin Director, Information Technology

With Oltmans since 1997
DeVry University, Bachelor of Science, Computer Science and Computer Management Systems
As director of IT, Brian oversees an in-house team of IT professionals and is responsible for all aspects of networking, data, telecommunications, and system support. He also manages the integration of Oltmans’ remote project sites and connects all processes back to our various office locations. Brian has served in the computer science field since 1985.

Louise Le Director, Marketing

With Oltmans since 2013
California State Polytechnic University, Pomona, Bachelor of Fine Arts, Graphic Design
Joining the team as Oltmans Construction Co.’s first graphic designer, Louise began by assisting the Marketing department with the refresh of Oltmans' 80-year-old brand. Louise was involved in the launch of Oltmans Strategic Markets Group in 2015 and the establishment of Oltmans Companies’ subsidiary brands. In 2016, Louise was promoted to Marketing Manager and then to Marketing Director in 2020. As Marketing Director, Louise is tasked with growing the Oltmans brand into a national mainstay and driving the Oltmans brand across traditional and digital platforms. Louise provides daily oversight of marketing and branding campaigns, oversees marketing personnel, and develops marketing strategies to achieve Oltmans’ sales and branding goals.

John Dang, EIT, DBIA Associate Director, Business Development

With Oltmans since 2015
University of California, San Diego, B.S., Structural Engineering ABET
As a leader in Oltmans’ client relations and business development efforts, John Dang offers a background in structural engineering, project management and controls, estimating, and pre-construction. His diverse technical history and ability to communicate effectively with design teams is an asset in navigating the unique challenges of our projects. John previously served as an Oltmans Project Manager from 2017 to 2021 and has worked closely with the company's estimating and pre-construction department. John was promoted to Associate Director, Business Development in 2021 to work closely with our clients and be a resource throughout project completion.

Ed Sorbel General Field Superintendent

Ed Sorbel joined Oltmans Construction Co. in 1987 bringing nearly 35 years of field operations leadership to his role. Ed’s impeccable construction background is demonstrated by a history of integrity-driven business practices and the highest level of quality construction. As general field superintendent, Ed oversees all field operations including the staffing and development of nearly 300+ carpenters and 50+ superintendents and foremen. Ed also assists with preconstruction delivery including the selection and coordination of subcontractors, constructability, construction sequencing, and staffing assignments across 70+ projects throughout the Southwestern United States. Ed’s portfolio spans the gamut of Oltmans’ portfolio and includes clients such as Goodman, Amazon, SRG Commercial, Prologis, CR Laurence, and Boeing.

Rodney Bunting General Field Superintendent

Rodney began his career at Oltmans Construction in 1985 as a 1st-period apprentice, advancing to general foreman and superintendent in 24-years. He joined DPR Construction from 2010 to 2015 before coming back to Oltmans Construction Co. Rodney was promoted to general field superintendent in 2016, bringing over 30 years of construction experience to his role. As General Field Superintendent, Rodney visits jobsites on a daily basis, manages the distribution of over 300 field staff throughout the Southwestern United States, and provides management support and resources to Oltmans’ field operations specifically related to quality control and quality assurance of Oltmans’ self-perform projects. Rodney’s portfolio includes experience in commercial, industrial, healthcare, OSHPD-1, technology, industrial, and higher education.

Jonathon Whinnery General Field Superintendent

Jonathon ‘Jon’ Whinnery, joined Oltmans Construction Co. as a 1st period apprentice in 2007, raising through the ranks to Superintendent in 2018 and General Field Superintendent in 2021. He is a second-generation Oltmans’ field leader, taking after his father, Ed Whinnery, Oltmans’ Superintendent for 33 years. Jon sets himself apart by demonstrating a unique passion and dedication to the success of Oltmans’ field operations. Most recently, he relocated with his family to Henderson, Nevada to establish Oltmans Construction Co.’s foundational field operations for Haas Automation and Trilliad Development. As Oltmans newest General Field Superintendent Jon strengthens Oltmans’ field operations management and will shoulder the heavy burden of ensuring the appropriate means and methods are exercised to meet all project demands across Oltmans Construction Co.’s expansion throughout the Southwest. His portfolio includes commercial, industrial, manufacturing, retail, and K-12 education with clients such as Ganahl Lumber, Cemex, Trammell Crow Company, Magnolia Public Schools, KIPP:SoCal, YMCA, and United Technical Institute (UTI).