By enabling continuous improvement with a powerful combination of connectivity, analytics, alerts and more, Wi-Tronix is empowering freight, passenger and transit system railways to improve safety, increase efficiency, and enhance service reliability. We deliver advanced IoT platforms that provide actionable information and insights on how rail networks are performing in real-time. Cloud-based data security, business intelligence such as fuel monitoring and refueling optimization, and 24/7/365 customer service set Wi-Tronix apart. We combine edge processing with Visual Intelligence, Artificial Intelligence, and Machine Learning to detect and interpret actionable Information. The Wi-Tronix team is passionately committed to its global vision of saving lives and ensuring the most efficient and reliable movement of goods and people throughout the world. Find out more about Wi-Tronix at www2.wi-tronix.com or contact us at [email protected].

DHJJ was founded in 1974 in Naperville, Illinois. Since then DHJJ has grown to a multifaceted business advisory firm serving Chicagoland, with a second office in St. Charles. We presently have over 100 associates, including experienced CPA accountants, tax preparation experts and business consultants. In addition to comprehensive CPA, tax and assurance services, DHJJ offers a range of specialty services including: - Cloud-based accounting - Multi-state taxation - Business valuation - Forensic accounting - Strategic and growth planning for your business - Chief Financial Officer (CFO) services - Financial Advisory through DHJJ Financial Advisors As a full service CPA and business advisory firm we are committed to enhancing our clients’ financial success and assisting them achieve their goals. Since our establishment, DHJJ has been privileged to create many successful outcomes for our clients. Let us achieve extraordinary outcomes for you.

A law firm offering services in the areas of medical malpractice and professional malpractice defense including the representation of all types of professional license holders in matters pending before the Illiniois Department of Financial and Professional Regulation. Our firm also specializes in other areas of insurance defense including automobile accidents, premises liability and business owner claims.

Engineering Enterprises, Inc. (EEI), founded in 1974, is an award-winning consulting engineering firm providing services to public agencies and private entities throughout northern Illinois. Over 65 experienced firm members including licensed professional civil engineers, land surveyors, and support team members provide a full range of services for planning, design, and construction of infrastructure projects, funding assistance and municipal consulting. Our core values guide our staff on every project from initiation through completion keeping us committed to quality, service, and value for our clients. By offering outstanding service to every client every day we are able to assist with bettering the communities in which we serve. EEI is led by a team of talented individuals: • Bradley P. Sanderson, P.E., Chief Operating Officer / President • Jeffrey W. Freeman, P.E., CFM, LEED AP, Chief Executive Officer • Denise M. Migliorini, Chief Financial Officer / Vice President • Julie A. Morrison, P.E., Vice President • Michele L. Piotrowski, P.E., LEED AP, Vice President • Stephen T. Dennison, P.E., Vice President

CHAMLIN & ASSOCIATES, INC. is a civil engineering company based out of 4152 Progress Blvd. Peru, Illinois, United States.

Multi-disciplined consulting firm specializing in a wide range of professional services such as Transportation Engineering and Surveying, Storm Water Management, terrestrial LiDAR mapping, Hydrography, Subsurface Utility Engineering (SUE), geodetic surveys, right of way acquisition services.

Phigenics is a leading provider of safe, smart, and superior water management programs aligned with ANSI/ASHRAE Standard 188 and Centers for Medicare & Medicaid Services (CMS) S&C 17-30. Our mission is to empower our clients to prevent disease and injury by improving the safety, defensibility, and value of Water Management Programs. Our culture is built upon the core values of: • Earned TRUST through credibility and empathy • Cross-functional TEAMWORK • PROBLEM-SOLVING attitudes • DATA-DRIVEN DECISION making • CONTINUOUS LEARNING and improvement • WILLINGNESS to be held ACCOUNTABLE

Dugan + Lopatka is a full-service Public Accounting Firm in Chicagoland, specializing in middle-market, private companies and nonprofit organizations. For nearly 50 years, our team of financial experts has brought together a wide range of skills and technologies to provide comprehensive service for our clients. While our work is tailored to the individual needs of clients, our core services include accounting, auditing, tax compliance & planning, and mergers & acquisitions. At D+L, we believe that the success of a business and its finances are inseparable. That’s why we take a comprehensive approach to each client’s business—going beyond the traditional role of an accounting firm to deliver personal service, reliable outcomes and genuine peace of mind. That’s Accounting for What Matters.

INTERRA provides geotechnical, environmental, and material testing and inspection services delivered in support of transportation, buildings, and other civil infrastructure projects. An industry leading provider, INTERRA delivers support of construction and development in a wide variety of end-user markets throughout the United States. State highway departments, federal agencies, FORTUNE® 500 companies, municipalities, top-tier healthcare corporations, preeminent construction firms, commercial property owners – to name a few – are all long-term INTERRA clients; many of which retained the firm when it opened its doors in 1996 as Great Lakes Soil & Environmental Consultants, Inc. We believe the number and duration of our long-term clients is indicative of our consistent ability to deliver: •cost-effective, common-sense solutions to challenging engineering problems, •value-added inspection services to achieve project and owner objectives, and •reliable material testing data when promised to facilitate project decisions and progress. Our clients know that INTERRA is fully committed to complete client satisfaction and that we have the personnel, expertise, experience, systems, technology, competitive pricing, and drive to deliver just that…complete satisfaction for every client on every project.

Cordogan Clark is a full-service architectural, engineering, planning, and construction firm with deep experience in educational, commercial, institutional, and residential design. Cordogan Clark emphasizes architecture that expresses and strengthens culture and community, and is considerate to context. We have an extensive background in the design and technical development of building systems and the management of complex projects. We provide advance value planning and accurate research to develop projects of high design and construction quality, functional efficiency, and cost effectiveness. By completing innovative projects within budget and schedule, we have earned a reputation as solid professionals. Our firm's structure provides close, personal participation by principals and key personnel on each project, to ensure every project continual and personal focus. Cordogan Clark is recognized for designing and building projects that translate challenges at any scale into enduring structures and welcoming environments that respond to specific contexts and client needs.

CompuSystems, Inc. is a full-service event registration contractor capable of providing a broad range of client services. We tailor our system to meet the specific needs of the client, creating an ecosystem that fosters the buyer and seller relationship. Our goal is to establish long lasting relationships with our clients based on trust, a shared success and a commitment to quality. To meet these goals, CompuSystems is dedicated to making investments in quality products and services to support you now and in the future. CompuSystems was founded in 1976 and has enjoyed many years as a major registration service contractor for the convention trade show industry. We service clients from a corporate office and centralized data center in Downers Grove, Illinois. Our brand new facility boasts over 31,000 square feet of office, production and warehouse space. Our state-of-the-art facility has been designed to foster collaboration and agile development. The new building also features a workout facility, deli, outdoor patio and an abundance of local dining options. Additionally, CompuSystems employs approximately 220 people and continues to enjoy substantial growth of a talented workforce.

ampliFI Loyalty Solutions is an industry-leading loyalty and engagement program provider specializing in data-driven, custom rewards programs for financial institutions nationwide. With over 25 years of experience, ampliFI designs branded loyalty programs tailored to each financial institution’s unique needs and offers seamless integration options with existing processing relationships. ampliFI’s innovative platform includes Real-Time Rewards, unique earning and redemption opportunities, enterprise engagement, and dedicated cardholder support. ampliFI empowers clients to customize their programs in alignment with market strategies and provides robust analytics to drive positive ROI. Based in Naperville, IL, ampliFI operates with a PCI-compliant approach and maintains an on-site customer contact center. Notably, ampliFI serves and influences over 10 million cardholders and is the exclusive domestic provider for loyalty programs with Visa.