Top Dayton, OH Professional Services Companies (55)

Institute for Applied Behavior Analysis is a mental health care company that provides autism and developmental disabilities solutions, offering services such as supported employment, community inclusion, and non-aversive behavior intervention.

National Heritage Academies is a for-profit education management organization that partners with communities to operate tuition-free public charter schools, preparing students for college and life.

Danis is a third-generation, family-owned construction manager and builder serving the Midwest and Southeast. Founded in 1916, it delivers complex, high-quality projects across healthcare, higher education, commercial, industrial, life sciences, and data-center markets. The company combines craftsmanship, innovation, problem-solving, detailed planning, and safety to fulfill clients’ visions and create spaces that strengthen the communities it serves while developing long-term construction...

HEAPY is an engineering firm founded in 1945 that provides MEP, fire protection, and technology design services. They focus on creating sustainable, high-performance, and resilient buildings for sectors like healthcare, education, and government, aiming to optimize building performance and operational excellence. The company is dedicated to delivering innovative solutions that enhance the built environment, ensuring facilities are efficient, safe, and...

For more than thirty years, CESO has combined creativity with technical know-how to provide end-to-end solutions to solve our clients’ unique challenges and opportunities. We continue to grow in each of our ten offices across the country, offering a wide range of services that help us serve our clients and achieve their vision. As your needs evolve, so too will...

ACD Direct is a Veteran-Owned, US-based full-service contact center and business process outsourcing (BPO) provider. The company specializes in creating excellent customer experiences (CX) by managing donor and customer interactions for nonprofits and corporate clients. They support a diverse range of needs, including everyday commerce and long-range projects, by outsourcing all or part of their clients' interaction volume.

CertaSite is a commercial fire protection and life safety company that partners with facility managers and chief compliance officers to keep people and properties safe. They provide design, installation, inspection, and maintenance of fire safety systems, ensuring regulatory compliance and safety through a technology-based platform. Serving multiple markets across the Midwest, they focus on professionalism and simplified management of life...

ERG is a multidisciplinary consulting firm offering a broad range of professional services. From offices across the country, we serve a spectrum of public and private clients, including federal agencies, state governments, corporations, and universities.

Exhibit Concepts, Inc. is an award-winning event marketing agency that specializes in the professional design, production, and management of impactful experiential environments. The company is dedicated to delivering memorable brand experiences for its clients by creating high-quality branded environments, including domestic and international trade show exhibits as well as curated museum installations, focusing on client success and creative solutions.

Sumaria Systems, LLC specializes in advanced aerospace and defense technologies designed to enhance warfighter capabilities. The company provides engineering, test, evaluation, and integration services for next-generation platforms, autonomous mission systems, and mission-critical avionics. By leveraging cutting-edge engineering and rigorous standards, they deliver solutions that strengthen national security and ensure superior performance in contested and complex environments for the U.S. Department...

Erie Home (operating as Erie Construction Mid-West Inc) is a leading American home services provider specializing in premium residential roofing and basement waterproofing systems. With over 100 locations nationwide, the company delivers high-quality solutions including metal and asphalt roofing, foundation repair, and air quality services, combining local expertise with national scale to provide superior craftsmanship and professional customer service to...

D.B. Group S.p.A. is an Italian multinational logistics and freight-forwarding company. Founded in 1980, it operates a global network of branches and provides integrated logistics, international shipping, supply-chain management, road, air and ocean freight, and customs consultancy. The company develops tailored solutions for complex cross-border transport requirements, serving clients across multiple markets worldwide through coordinated international teams and local expertise.

Maxim Healthcare Services is a leading provider of home health, medical staffing, and wellness services across the nation. Its mission is to provide compassionate, home and community-based personalized care that honors the dignity of every patient and family. The company specializes in skilled nursing, personal care, and behavioral services, as well as military and federal services for veterans and service...

Zerorez is a multi-national, multi-surface cleaning company and franchisor that provides residential and business cleaning services, including carpet, tile, and upholstery cleaning.

Founded in 2007, SIERTEK LTD is a minority-owned and service-disabled veteran-owned small business (SDVOSB). The company provides a wide range of services to the federal government, specializing in defense and space manufacturing, program management, information technology, and administrative support, serving as both a prime and subcontractor for various missions.

Brady Ware & Schoenfeld, Inc. is a top 200 national CPA and advisory firm serving entrepreneurs, start-ups, small to middle-market businesses, and individuals. They provide tax, audit, valuation, and advisory services.

Founded in 1989, Improveit Home Remodeling specializes in home remodeling products and services, including replacement windows and bathroom remodeling. Their mission is to make continuous improvements in their customers' lives.

LexisNexis Legal & Professional is a leading global provider of legal, regulatory and business information and analytics that help customers increase productivity, improve decision-making and outcomes, and advance the rule of law around the world. We help lawyers win cases, manage their work more efficiently, serve their clients better and grow their practices. We assist corporations in better understanding their markets,...

Lighthouse Youth & Family Services empowers young people and families to succeed through a continuum of care that promotes healing and growth. They offer a wide range of services for youth aged 0-25 and their families, including mental health, foster care, and shelter.

thinkPARALLAX is a full-service sustainability strategy and communications agency. It partners with companies across industries to develop customized sustainability and communication strategies, guide organizations through sustainability challenges, support regulatory compliance, improve reporting and stakeholder engagement, and use sustainability initiatives to generate business value. Its team combines sustainability strategists and creatives to deliver practical solutions aligned with clients’ ambitions and business...