Meet the Team
- University of Southern California, Los Angeles, B.S. Real Estate
Joseph “Joe” O. Oltmans II, a third generation builder, has been with Oltmans Construction Co. for over five decades. Joe assumed the position of chief executive officer in 1993 and chairman of the board in 2003. In 2019, Joe formally announced his retirement but continues to be involved on the board as chairman emeritus. His leadership exemplifies the company’s foundational values of integrity, honesty, and hard work which are set by his late father, O.H. “Bud” Oltmans, and his late grandfather and the company’s founder, J.O. Oltmans.
- California State University, Long Beach, B.S. Construction Technology
John Gormly oversees all corporate operations and divisions under the Oltmans Companies. Starting as an estimator-trainee over 40-years ago, John has been credited with building long-term business partnerships and leading the company into new markets in his position as vice president and director of sales and marketing beginning in the 80s. Under John’s leadership, Oltmans Construction Co. began our partnership with Great Place to WorkTM. John was promoted to the position of president in 2005 and chairman of the board and CEO in 2019.
- University of California, Los Angeles, B.A. Economics
Charles “Charlie” Roy joined the Oltmans team of professionals as an estimator in 1984 and has been credited with the development of Oltmans’ tenant improvements division in the 1990s. In 2018, Charlie was named senior vice president, and the following year assumed the position of president. He oversees the company’s overall operations, resources, and assets. Bringing almost four decades of construction experience to his role, Charlie has successfully led the company through the COVID-19 pandemic and its 90th year in business.
- University of Southern California, Los Angeles, B.S. Real Estate
As a business development executive for the firm for nearly two decades, Gerald has earned a well-respected niche in the industry as a highly regarded expert specializing in the commercial and industrial marketplaces. Gerald is recognized for his high standards, ethical business practices and his primary focus to create long-lasting client relationships while initiating new business opportunities in the commercial, office, and industrial arenas throughout the Southwestern United States.
- California State University, Long Beach, California, Bachelor of Science/Construction Management
Tony Perez brings over four decades of business development and estimating experience to Oltmans’ preconstruction and construction services. He oversees all phases of estimating, sales, and marketing for the commercial, industrial, and renewable energy markets. Tony offers not only his valuable expertise, but his keen awareness of current market conditions to his clients.
- Simon Fraser University in Vancouver, BC,Bachelor’s Degree in Business Administration, with a focus in Accounting
Andy Lee joined Oltmans in 2017, bringing over 15 years of experience in accounting, auditing, and financial management to the team. Before joining the company, he audited Oltmans as an external auditor at KPMG, gaining invaluable insight into its financial operations and family-oriented culture. This experience made for a seamless transition when he later became part of the Oltmans team as Assistant Controller. He quickly advanced to Corporate Controller and now serves as the Chief Financial Officer.
With a deep understanding of Oltmans' operations, Andy's transition into the company was smooth, driven by his appreciation for the family-oriented culture and approachable leadership that define Oltmans.
As CFO, Andy plays a critical role in maintaining Oltmans' strong financial health while supporting the continued growth and success of the company.
- 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 brings over 30 years of real estate, accounting, and finance experience to his role as vice president and chief financial officer of Oltman’s Real Estate Services (ORES). ORES manages over 9 million s.f. of commercial property throughout Southern California and oversees all aspects of the entities including lease agreement negotiation, tax return preparation, mortgage origination and servicing, asset and tenant oversight, as well as property disposition and acquisition on behalf of its owners.
- 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
Vice president of estimating since 2016, James Bogle assumes the vital role of overseeing the company’s preconstruction and estimating department. His extensive estimating experience, education, and management background gives him critical insight to each client’s needs and expectations per market sector. James oversees the delivery of all comprehensive cost proposals produced by the firm and keeps an active tab on the subcontractor and commodities communities to track, anticipate, and manage escalation and lead times.
- California Polytechnic State University, Pomona, Bachelor of Science, Construction Management
Chris began as a project engineer and rose through the ranks before joining Oltmans’ senior management as vice president of production in 2020. Chris is responsible for managing the success of Oltmans’ operations valuing over $700-million in volume annually. With extensive project management experience and strategic planning expertise, Chris brings over 30 years of construction background to his position. He oversees Oltmans’ production and field operations department consisting of over 400 members.
- California State University, Fullerton, California, B.A. Accounting
As the Assistant Vice President of Human Resources, Joanne leads a team of professionals responsible for various aspects of HR management, including recruitment, on-boarding, benefits administration, compensation, performance management, training and development, employee relations, legal compliance, payroll administration, and HR technology. Additionally, Joanne oversees Oltmans' enrichment programs , including Oltmans' University, Employee Recognition, and charitable initiatives with organizations like Olive Crest, the American Red Cross Association, and Orange County Rescue Mission.
- Texas A&M University, College Station, Texas, Master of Construction Management
- University of Madras, India, Bachelor of Architecture
Anjana “Anjie” Bhowmik brings over a decade of experience in engineering, project management, and architecture to Oltmans Construction Co. Anjana was tasked with overseeing Oltmans’ Strategic Markets Group, a specialized operations team whose expertise is in delivering healthcare, private education, and high tech / laboratory projects, until her promotion to senior director of production in 2018. As senior director, Anjana is in charge of managing the financial success and on-time delivery of all of Oltmans’ projects. This includes attending OAC meetings, bid reviews, and providing construction sequencing input. She was also recognized by the LABJ as one of Los Angeles County’s most influential women in construction and design in 2019.
- DeVry University, Bachelor of Science, Computer Science and Computer Management Systems
Brian oversees Oltmans’ in-house team of 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.
- California State Polytechnic University, Pomona, Bachelor of Fine Arts, Graphic Design
With nearly 10 years of experience with marketing in the construction industry, Louise is tasked with growing the nearly century old Oltmans Construction Co. brand and advancing marketing/sales campaigns across all traditional and digital platforms. Louise provides daily oversight of the marketing department to support the coordination of project pursuits and works closely with the executive team to develop strategies to achieve Oltmans’ sales and branding goals. She also oversees the company’s culture committee and corporate events.
- Bachelor of Science, Construction Engineering Management, California State University, Long Beach, California
Loretta Rivas has over 20 years of construction related preconstruction estimating experience. Within the estimating team, Loretta has uniquely been involved with assisting project owners from conceptual design through preconstruction, and into construction. She excels at collaborating with consultants and subcontractors while providing Oltmans’ clients with rough order of magnitude (ROM) budgets, design reviews, value engineering services, and design/construction recommendations that are reflective of the marketplace. As Director of Preconstruction, Loretta will continue to service our clients' preconstruction needs while providing mentorship and oversight of all budgeting deliverables for Oltmans’ core markets. In addition to her professional accomplishments, Loretta spearheads the Women of Oltmans (WOO) group lunch initiative.
- Bachelor of Science, Construction Management, University of Phoenix, Phoenix, Arizona
Justin Thompson joined Oltmans Construction Co. as an estimator in the tenant improvement division in 2017. As the Director of Preconstruction for the Strategic Markets Group he brings almost 20 years of construction experience in estimating, project management, and project engineering. His focus will be in commercial, retail, industrial, hospitality, and institutional markets. Justin creates accurate and realistic budgets that help clients stay agile in fast moving markets like lease and tenant turnovers, renovations, seismic retrofits, repositioning, historical renovations, and tenant improvements. He is adept at providing critical construction cost information to facilitate the most informed, market-driven decisions. In his new role, Justin will manage Oltmans' Strategic Markets Group estimating from preconstruction to construction.
- Ventura Community College
- State of California, Department of Real Estate Practice and Appraisal
Joshua “Josh” Boswell manages preconstruction and estimating for the Northern California region. He oversees the preparation of conceptual cost analysis, feasibility studies, contract negotiations, and project buy-outs. Josh works closely with the project’s design-build teams, clients, consultants, and subcontractor community to bring these to life. A few notable projects that Josh has been a part of includes the Center at Needham Ranch project in Santa Clarita, Overton Moore Properties (OMP)’s the Crossings at 880, and Bridge Industrial’s Oakland and Milpitas projects.
- Arizona State University, Tempe, AZ - Ira A. Fulton College of Engineering & Del E. Webb School of Construction - Bachelor of Science in Construction Management
Troy Griffin oversees Oltmans’ Arizona and Nevada operations. Known for being detail oriented and meticulous, he is an expert at delivering complex and timeline-driven projects. He excels at providing preconstruction services such as value engineering, constructability and feasibility reviews, cost control, and BIM delivery oversight. Troy has recently successfully delivered phase 1 of the Haas Automation campus in Henderson, NV.
- 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
With over 45 years of experience, Dan Wozniak assumed the role of regional director of Northern California operations in 2020. Dan is a project management expert and offers our clients invaluable insight and expertise in delivering construction in the industrial, commercial, retail, mixed-use, and institutional marketplaces. He is well-versed with implementing design-build, BIM, and LEED/sustainable construction methods and has worked with developers such as SRG Commercial, Prologis, Trammell Crow Company, and Bridge Industrial throughout California.
- University of Phoenix, Bachelor of Science, Business Administration
Thanh brings over three decades of diverse construction experience spanning residential, healthcare, commercial, and industrial, with specializations in delivering e-commerce and logistics projects. Starting at Oltmans Construction Co. in 2015 as a senior project engineer, Thanh was promoted to project manager in 2018 and became operations director specializing in e-commerce, specifically Amazon delivery, in 2020. Thanh has made tremendous efforts to partner with and service Oltmans’ e-commerce clients to match the incredible pace of growth that the market has undergone over the past several years. As a Director of Business Development, Thanh continues to service the e-commerce and logistics industries and assists in implementing Oltmans’ business development initiatives.
- University of California, San Diego, B.S., Structural Engineering ABET
Leading Oltmans’ client relations and business development efforts, John Dang offers a background in structural engineering, project management and controls, estimating, and preconstruction. His diverse technical history and ability allow him to communicate effectively with design teams and navigate the unique challenges of potential projects. His professional evolution within the company spans pivotal roles in Oltmans’ preconstruction, estimating, and project management divisions, affording him comprehensive insight into Oltmans’ unique business advantages. John's portfolio includes partnerships with Prologis, Children’s Institute, Inc., KIPP: SoCal, the YMCA, and Riverside University Health Services. Additionally, John is an active member of NAIOP SoCal and was the recipient of the 2024 John B. Parker YPG Award.
- California State University, Fullerton, California, B.A. Accounting
Adrienne von Mizener joined Oltmans in 2018, bringing with her a wealth of accounting experience. She has advanced through several key positions, starting as a Senior Financial Analyst, then as Accounting Manager, and now as Corporate Controller. Adrienne holds a Bachelor of Arts in Accounting from California State University, Fullerton, and has over 16 years of experience in accounting,including 13 years in private industry and 3.5 years as an Auditor in public accounting.
Currently pursuing her CPA certification, Adrienne isdedicated to ensuring financial accuracy and integrity at Oltmans. Her expertise and commitment to excellence make her a vital part of the team as she helps guide the company through continued growth and success.
- Brigham Young University, Provo, UT, B.S., Construction Management
Jeff began his career at Oltmans Construction Co. as a project manager in 2011. In 2022, he was promoted to associate director of production where he provides project operations mentorship to Oltmans’ projects in the Inland Empire. Jeff also oversees Oltmans’ Inland Empire office and yard located in Corona, CA. Throughout his tenure at the company, Jeff has successfully delivered projects for Amazon, The Lewis Companies, Nova Academy Charter School, and United Pacific Headquarters among many others.
Ed Sorbel brings nearly 36 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. He oversees all field operations including the staffing and development of over 300 field personnel. Ed 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.
Jonathon ‘Jon’ Whinnery, joined Oltmans Construction Co. as a 1st period apprentice in 2007. 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. In 2021, Jon was promoted to General Field Superintendent where he is tasked with overseeing all of Oltmans’ field operations including the staffing and development of 300+ field personnel. He is a second-generation Oltmans’ field leader, taking after his father, Ed Whinnery - Oltmans’ Superintendent for 33 years. 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).
Brian Green is a third-generation employee of Oltmans Construction Co. He joined the company in 1988 as a first-period apprentice soon after graduating high school. In 2023, he was appointed General Field Superintendent after (35) thirty-five years of extensive experience overseeing all aspects of Oltmans’ project sites. In his new role, Brian will work closely with the Director of Field Operations, and General Field Superintendent to ensure the smooth staffing and movement of nearly 400 carpenters. He will also assist our project teams with scheduling, staging and logistics, QA/QC, safety coordination, and supervision of progress at 70 different Oltmans’ project sites annually.
- Meadows-Draughon Business College, New Orleans, Louisiana
Bobbi is a proven construction safety professional who brings nearly 30 years of knowledge to Oltmans Construction Co.’s projects. With her extensive corporate safety and field experience, she is involved in every aspect of monitoring safety including overseeing project audits, inspection, site safety planning, safety training, equipment maintenance, execution of work stoppage orders, AHA (Activity Hazard Analysis), IPP, APP writing, and beyond. Bobbi is also responsible for leading Oltmans’ COVID-19 safety program to ensure ongoing project compliance and personnel safety throughout the pandemic.