GableGotwals is a full-service law firm with nearly 100 attorneys and more than 70 professionals in Oklahoma and Texas. We represent a diversified client base across the nation, and our connections and reach are global. Fortune 500 corporations, privately owned companies, entrepreneurs, foundations, and individuals entrust us every day with the stewardship and strategic management of their legal challenges. The Firm is well known for its high-quality legal services provided by a highly experienced group of litigators and transactional lawyers who have been recognized by Chambers USA, IFLR1000, Benchmark Litigation, and a number of federal, state, and county bar associations. Our purpose is to use our diverse skills and expertise to provide superior, efficient, and responsive legal services and to support and enhance the lives and businesses of our clients, team members, and communities.

Founded in Indian Territory in 1896, our law firm predates statehood by more than a decade – and from the beginning, Doerner lawyers were leaders who were helping to shape our region. The role that our rich history plays in today’s contemporary society and business world is evident in the depth of experience and get-it-done attitude that every lawyer brings to the table. We have always had the vision and know-how to make things happen for our clients. Doerner lawyers build on the foundation of strong client relationships established by our predecessors. We have represented many clients for decades, helping them grow, survive economic and other hardships, and thrive during boom times regardless of where their business interests take them. Throughout our history, we have been servant leaders. For many years, Doerner lawyers have been tapped for high profile appointments in regional and national government agencies, many to later become judges, serve in a governmental capacity or take top representative positions in major businesses and industries. A service ethic permeates our firm today and is evidenced by our lawyers’ passionate commitment to civic and charitable boards and organizations. Doerner was selected to be a member of Meritas, a global alliance of independent, full-service law firms. The organization only invites its members to join after a rigorous evaluation of the firm's high standards of quality and excellence.

Blueknight is a publicly traded master limited partnership with the largest independent asphalt terminalling network in the nation focused on serving infrastructure and road construction industries.

Frederic Dorwart, Lawyers PLLC has, since its founding, expanded to more than thirty lawyers principally engaged in securities transactions and litigation, financial institutions law, mergers and acquisitions, corporate restructuring, complex business litigation, oil and gas transactions and litigation, international LNG shipping and infrastructure projects, and construction project and litigation law.

Cyntergy is a full service, award winning Architecture, Engineering and Construction Administration firm based in Tulsa and is licensed in Architecture and Engineering in every state in the Continental US. We believe that a successful project is the product of a successful relationship with our client. It is a project that, in the end, provides the correct balance between our clients budget, needs and goals, while at the same time integrating inspiration and creativity. Our design process is built on a foundation of constant communication with our client. Throughout each phase of design we emphasize the interaction of the team through consistently scheduled programming/design review meetings and maintain an open line of communication throughout the entire project.

Hogan Assessments is the international leader in personality insights. With the world’s largest database of personality research and decades’ worth of experience in psychometrics, Hogan produces valid, reliable personality assessments that measure everyday strengths, potential shortcomings, and values and motivators. More than 75% of the Fortune 500 rely on Hogan’s suite of talent acquisition and development solutions for their people strategy. Hogan’s solutions empower organizations to hire the right people without bias, boost productivity, reduce turnover, promote diversity and inclusion, identify high-potential talent, develop leaders, and inspire employees to do their best. Hogan was founded by Drs. Robert and Joyce Hogan in 1987. The Hogans are widely credited with demonstrating how personality factors influence organizational effectiveness.

SGA Design Group (SGA) was founded in 1995. SGA is an established leader in national architectural programs, prototype development, management & maintenance, architectural forensic analysis and sustainable design. We are headquartered in Tulsa, Oklahoma and also have an office in Bentonville, Arkansas. Our primary focus is delivering unique solutions to satisfy each client’s particular needs.

Enduro Pipeline Services, Inc. - Corporate Headquarters in Tulsa, Oklahoma with additional service and products center in Calgary, Canada. Enduro provides In-line-Inspection Services, cleaning pigs, tracking equipment plus project management services to the pipeline industry. Enduro - A Service Company offering MFL Multiple Technology Tool Pipeline Inspection Surveys, pipe sizes currently available, 4"​ through 36"​, with some dual diameter options. Provide Caliper / Geometry Pipeline Inspection Services - pipe size 4"​ thru 48"​ w/ many Multiple Diameter options. Additionally, Enduro manufactures and supplies a complete 'suite'​ of Pipeline Pigs - pipe sizes 2"​ thru 60"​ used for cleaning, purging, batching, line fill and de-watering, line dry - pipping products for 'on stream'​ applications plus 'new construction'​ projects. Dual Diameter and Multi-Diameter pigs, chemical cleaning services and technical assistance in support of customer's business requirements.

Since its founding in 1917, the American Association of Petroleum Geologists has been a pillar of the world wide scientific community. The original purpose of AAPG, to foster scientific research, to advance the science of geology, to promote technology, and to inspire high professional conduct, still guides the Association today. AAPG provides publications, conferences, and educational opportunities to geoscientists and disseminates the most current geological information available to the general public. As the world's premier professional association for explorationists, AAPG is about the science of petroleum geology. AAPG's membership is made up of about 35,000 professionals in 120 countries in the upstream energy industry who collaborate – and compete – to provide the means for humankind to thrive. AAPG provides the network of communications that allows the professionals to succeed. We invite you to see who we are, what we are about – and contact us for membership or the many services we provide. Offices are located in Tulsa | Washington DC | London | Bahrain | Singapore. AAPG also has a Foundation that supports the petroleum geology industry and other earth science fields.

Holloway, Updike and Bellen, Inc. is a Civil Engineering Consulting Firm founded in 1971. The Company’s main office is located in Muskogee, Oklahoma with a branch office in Broken Arrow, Oklahoma. The firm specializes in the design of water systems, wastewater systems and transportation projects. Our Clients include branches of state, county and local governments as well as rural water districts and private developers. Over the past 20 years the firm has had a staff of approximately 30 people. Currently the company employees 8 professional engineers and 2 registered land surveyors. The president of the company is Jay R. Updike, P.E. from Muskogee, Oklahoma.

OakTree is the branch that connects a job seeker to success. For over 25 years we've worked with highly regarded corporations, sourcing the very best talent for their diverse range of career opportunities. This could be YOU!