Apex Companies’ cover photo
Apex Companies

Apex Companies

Environmental Services

Rockville, Maryland 39,171 followers

About us

Who is Apex? We’re a team of award-winning professionals who tackle environmental challenges to save our clients time and money. If you’re seeking responsive service and real-time results, contact us! We’d be happy to help. If you provide that caliber of technical excellence, contact us as well! We’re always seeking top talent. Our competitors tout results. We deliver them. We saved one client over $30M while helping them achieve local community support and national recognition. But don’t take our word for it. Ask our clients. Partner with Apex. Discover what sets us apart. You’ll be glad you did. About Apex Established in 1988, Apex is a national multidisciplinary consulting and engineering services firm with a robust portfolio of capabilities in water; environment; environmental, social, and governance (ESG) and resiliency; health and safety; compliance and assurance; and infrastructure. Rated #13 as an ENR All-Environmental firm and #68 in the top 200 overall, we are known for our technical expertise, rapid response, operational integrity, and exceptional client satisfaction. We operate in all 50 states and maintain a highly capable and diverse team of scientists, geologists, engineers, technicians, and information management specialists. At Apex, we pride ourselves on our culture of diversity and inclusion. We respect and appreciate the rich differences that race, gender identity and expression, family, sexual orientation, age, national origin, work experience, education, physical ability, and religion bring to the fabric of our organization. For Apex, it’s not just a box to check. We believe it’s the collaborative foundation that drives our success.

Website
http://www.apexcos.com
Industry
Environmental Services
Company size
1,001-5,000 employees
Headquarters
Rockville, Maryland
Type
Privately Held
Specialties
Environmental Consulting, Engineering, Information Management, Compliance, Air Quality, Water Resources, Oil & Gas, Brownfields Redevelopment, Litigation and Transaction Services, Emergency Response, Health & Safety, Natural and Cultural Resource Management, Stormwater, Environmental Risk Management, Wastewater, Industrial Hygiene, Remediation, Environmental Site Assessments, Due Diligence, Drinking Water, Permitting, Risk Management, and Ergonomics

Locations

  • Primary

    2101 Gaither Rd

    Suite 500

    Rockville, Maryland 20850, US

    Get directions

Employees at Apex Companies

Updates

  • PNW, here we come! Apex Companies is hiring engineers, scientists, and summer interns across our nationwide offices. This month we'll be heading west, and we’d love to meet the next generation of Apex professionals. Stop by our booth to share your resume, learn more about our work in engineering and environmental services, and connect with members of our team. Don’t see your school listed? Check out our open opportunities at https://lnkd.in/eR8VE5Sc. We can’t wait to meet you! #ApexCompanies #CareersAtApex #Hiring #EngineeringJobs #Internships #STEMCareers #CampusRecruiting #ScienceJobs

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    As water-related risk intensifies, corporate water disclosure is quickly becoming a business-critical priority, not just an ESG add-on. Apex analyzed 58 publicly listed companies and found that while reporting is increasing, it remains heavily focused on basic quantity metrics, with limited insight into water quality, supply chain impacts, and regional risk. Investor demand is accelerating, but disclosure practices are still fragmented, inconsistent, and often reliant on internal protocols. Compared to climate reporting, water data lacks standardization, depth, and widespread assurance, leaving gaps in transparency and decision-making. Organizations that take a more comprehensive, strategic approach to water management will be better positioned to strengthen resilience, reduce risk, and meet growing stakeholder expectations. Read the full analysis to explore key trends and what they mean for your business. https://hubs.ly/Q0492BXM0 How prepared is your organization to meet rising investor expectations on water? #ApexCompanies Slok Gyawali

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    Steven Ball, P.E., project manager for Johnson Engineering, LLC. An Apex Company, joined community leaders to celebrate the groundbreaking of Alva High School, the newest addition to the School District of Lee County. The High School will provide learning space for 2,000 students, a full athletic program, and will focus on the original Alva community roots with a full agricultural learning program. When completed, the school will become the district’s 16th high school, supporting the continued growth of eastern Lee County. Congratulations to everyone involved in this exciting milestone! #ApexCompanies #OneApex

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    Apex is looking forward to the CalCUPA Annual Training Conference, taking place March 23–26, 2026 in San Diego, CA. We’re proud to sponsor the Industry Stakeholder Session on Wednesday, March 25, bringing together industry leaders and senior staff from California environmental agencies to talk through key regulatory and enforcement priorities. If you’ll be there, keep an eye out for Joe Weslock, Laura England-Witt, and Gregg Demers. Whether it’s a quick hello, catching up on a project, or chatting through evolving compliance and environmental initiatives, we’d love to connect. #Apex Companies #CalCUPA #CUPA

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    Apex Companies, LLC (Apex) is excited to announce the acquisition of CWE, an award-winning civil infrastructure, water resources, and environmental engineering services firm with multiple offices in California. Established in 2006, CWE delivers planning, surveying, project & construction management, engineering and environmental services for civil infrastructure and water resources projects. With a portfolio covering multiple public works jurisdictions, utility companies, private businesses, and federal agencies, CWE provides end-to-end solutions, from initial planning and modeling through survey, design, construction management, regulatory compliance, and ongoing operations support. Under the leadership of co-founders Jason Pereira and Vik Bapna, CWE is known for technical excellence, strong client relationships, and a people first culture.  Their approach is bult on personalized client connections to the communities where the CWE live, work, and play, leaving them better for the next generation. https://hubs.ly/Q047dCFX0 #ApexCompanies #OneApex

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    Apex recently supported a client in California with the remediation of soil and groundwater impacted by 1,4-dioxane, a compound known for its high solubility in water and complex treatment challenges. Our team implemented an integrated approach that combined soil washing, groundwater capture, and enhanced heated soil vapor extraction to improve contaminant removal. Extracted groundwater was treated with ozone to meet waste discharge permit requirements before release. Soil remediation is now complete, and groundwater treatment is in its final phase. #Remediation #ApexCompanies #Groundwater

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    At Apex, our greatest strength has always been our people. Across offices, disciplines, and teams, it’s the dedication, professionalism, and care our employees bring to their work each day that shapes our culture and drives the impact we make for our clients and communities. As we continue to grow and evolve, that culture remains at the center of who we are, built through collaboration, resilience, and a shared commitment to excellence. Apex Chief Operating Officer, Brooke Bonkoski, PE shared: “Employee Appreciation Day gives us a meaningful opportunity to pause and recognize what makes Apex strong: the people behind the work… Every day, I see the dedication, professionalism, and care you bring to your jobs, to our clients, and to one another. Across teams and locations, your commitment to excellence and to our shared goals continue to shape who we are as an organization and how we show up in the communities we serve.” We’re grateful for the many ways our team shows up, through leadership, teamwork, innovation, and the everyday moments that support one another and keep our teams safe. Thank you to our incredible team. #ApexCompanies #OneApex #EmployeeAppreciationDay #CompanyCulture

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    Apex celebrates a recent new hire and promotions within our Senior Leadership team to support growth and stronger alignment across Apex. We welcome new hire Evan Seale, our Commercial Stormwater (CSW) Business Unit Leader. Evan brings experience leading field-based teams, delivering on a national scale. He has worked with crews, supervisors, and managers to improve safety, planning, and day-to-day operations. Evan has also led teams responsible for budgets, equipment, systems, and training. He began his career as an Army officer serving with the elite 75th Ranger Regiment where he conducted multiple deployments to Afghanistan leading teams in complex, high-stakes environments. We also congratulate Mark Leece – West Business Unit Leader and Dan Delahunty – Central Business Unit Leader on their promotions. They join Ryan Trahan, P.E. – East Business Unit Leader who continues to drive growth in our East Region. All the Business Units Leaders ensure that our growth strategies are practical, aligned, and well supported—so teams can focus on delivering high quality work to our clients. Apex welcomes Evan and congratulates Dan and Mark on their well-deserved new roles. #Leadership #OrganicGrowth #Stormwater #ApexCompanies #OneApex

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    We’re grateful to see our OR 99E: S Pine Street to Berg Parkway project recognized with an Honor Award from ACEC Oregon. What began as a pavement rehabilitation effort evolved into a broader corridor modernization through close collaboration with Oregon Department of Transportation, the City of Canby, rail partners, and a multidisciplinary project team. Along this 1.5-mile stretch, the project delivered meaningful safety and accessibility improvements, including ADA-compliant curb ramps, accessible transit stops, upgraded rail crossings, sidewalk infill, signal modernization, stormwater system replacement, and traffic-calming measures—all while maintaining access for freight, businesses, and the community during construction. Thank you to ODOT for the opportunity to deliver this project, and to Project Manager Dustin Cooley, PE, our clients, and the entire project team for their dedication and collaboration in creating a safer, more accessible corridor for Canby. #ApexCompanies #HonorAward Dustin Cooley

  • Apex is excited to announce the acquisition of Tully, Inc. (Tully Consulting Group, An Apex Company). Founded in 2005 by Robin Tully, PE, Tully Consulting Group provides stormwater compliance and environmental engineering services including Construction, Industrial and Municipal Stormwater Permit Compliance, 401/404 Permit Compliance, SWPPP/WPCP Compliance, SWPPP/WPCP Compliance Oversight, QSP and QSD Services, NPDES Permit Compliance, Temporary Creek Diversion and Dewatering Plans, Water Quality monitoring and Stormwater Civil Engineering across Northern California. This partnership strengthens our ability to provide full stormwater lifecycle services to our clients, expanding our reach across California, and making a difference in the communities where we live and work. We’re looking forward to the opportunities this collaboration brings and to a successful future together. #ApexCompanies

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Funding

Apex Companies 2 total rounds

Last Round

Undisclosed
See more info on crunchbase