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Apex Companies

National environmental consulting and engineering firm

Project Scientist

Full-Time
$65k - $75k/yr+ Annual bonus opportunities + 401(k) match
Mid, Senior
Bachelor's
Chicago, IL, USA
In PersonWillingness to travel locally to project sites.
Architecture & Civil EngineeringEnvironmental Engineering

About the job

Requirements
  • A Bachelor of Science degree in Environmental Science, Geology, Engineering, or a related scientific field.
  • At least 4 years of environmental consulting or related industry experience with technical writing and field oversight responsibilities.
  • Strong communication and organizational skills, with the ability to manage multiple priorities in field and office environments.
  • Ability to mentor and train junior staff.
  • Strong commitment to health and safety and a solid understanding of safe field practices.
  • Current 40-hour HAZWOPER certification.
  • Proficiency with Microsoft 365.
  • Valid driver's license, reliable transportation, and willingness to travel locally to project sites.
Responsibilities
  • Provide senior-level technical oversight and perform environmental field activities for Phase II site investigations; UST/AST investigations, removals, and installations; and remediation or regulatory-driven field investigations.
  • Manage projects under the Illinois EPA Leaking Underground Storage Tank Program and Site Remediation Program, including preparation of regulatory reports, work plans, budgets, and reimbursement documentation.
  • Oversee subcontractors in the field and serve as a liaison between Apex, general contractors, and clients to ensure work is completed safely, efficiently, and in compliance with project requirements.
  • Conduct and support environmental sampling of soil, groundwater, and air, along with associated technical documentation and reporting.
  • Prepare, review, and manage technical reports, proposals, and field documentation.
  • Support emergency response projects as needed, including occasional after-hours or weekend response work.
  • Mentor and train junior scientific staff while promoting safe work practices and technical development.
Desired Qualifications
  • Experience managing projects under the Illinois EPA Leaking Underground Storage Tank Program and Site Remediation Program, including preparing regulatory reports, work plans, budgets, and reimbursement documentation.
  • Experience with UST/AST systems, environmental sampling, remediation oversight, and subcontractor coordination.
  • Familiarity with Illinois Environmental Protection Agency environmental regulations and tank programs.
  • Current 8-hour HAZWOPER refresher certification.

About the company

Apex Companies provides environmental consulting and engineering services to public agencies and private clients across all 50 states. Its offerings include water resources management, environmental remediation, health and safety, compliance assurance, ESG advisory, and infrastructure engineering, delivering work from site assessments to managing complex projects. A key differentiator is the breadth of services across environmental, health and safety, and ESG, plus its ARTEMIS data-management platform that organizes environmental information for risk mitigation and lending. The company aims to help clients manage environmental risk, achieve regulatory compliance, and efficiently complete projects while expanding its national footprint.

Company Size

1,001-5,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Rockville, Maryland

Founded

1988

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Simplify's Take

What believers are saying

  • Zweig named Apex a 2026 Hot Firm, ranking it No. 28.
  • March 2026 CWE acquisition expands California engineering reach and cross-sells immediately.
  • February 2026 Tully acquisition strengthens stormwater lifecycle services across Northern California projects.

What critics are saying

  • Rapid roll-up integration can dilute service quality and overload project managers by 2027.
  • The 2024 NRC report flagged a Severity III violation at Apex Companies.
  • PE ownership under Morgan Stanley Capital Partners pressures exits; stalled growth breaks the platform thesis.

What makes Apex Companies unique

  • Apex bundles water, environmental, and infrastructure work through one national platform.
  • ARTEMIS gives clients environmental data management and lending support across project lifecycles.
  • March 2026 CWE and Tully deals deepen California civil, water, and stormwater capabilities.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • 401(k) Company Match
  • Paid Vacation
  • Paid Sick Leave
  • Relocation Assistance

Growth & Insights and Company News

6 month growth

22%

1 year growth

20%

2 year growth

20%
Apex Companies
Mar 18th, 2026
Apex Companies Acquires CWE

Apex Companies announced the acquisition of CWE, an award-winning civil infrastructure, water resources, and environmental engineering services firm with multiple offices in California.

Associated Press
Feb 17th, 2026
Apex Companies Acquires Tully, Inc.

Adds to Core Stormwater Strength and Enhances Ability to Deliver the Full Stormwater Lifecycle in Northern California

EIN News
Jan 5th, 2026
Raincatcher Advises AquaWorks DBO on Its Acquisition by Apex Companies

Raincatcher, a national mergers and acquisitions advisory firm serving small to mid-size businesses, served as the exclusive sell-side advisor to AquaWorks DBO,

EIN News
Nov 3rd, 2025
Apex Companies Acquires Forsgren Associates, Inc.

Bolsters Engineering Depth and Extends Operational Presence in Intermountain West

EIN News
Nov 26th, 2024
Apex Acquires Weiler Engineering in Florida

Apex Companies, LLC has acquired Weiler Engineering Corporation, a Florida-based engineering firm. This acquisition enhances Apex's engineering capabilities and strengthens its presence in Florida. Weiler Engineering, with over 45 professionals, brings expertise in civil, structural, and utilities engineering. This move follows Apex's recent acquisitions of Johnson Engineering and Water Science Associates, further expanding its services in the municipal and private markets.