About DSG
Definitive Safety Group LLC
Definitive Safety Group LLC is a California DVBE-certified environmental consulting firm headquartered in Antioch, California. Founded in 2021 by Registered Environmental Health Specialists with deep roots in California state regulatory practice, DSG delivers precision-grade environmental compliance, health, and safety solutions to government agencies, energy developers, and institutional operators across the state.
Our practice is built on two proven verticals, energy infrastructure environmental compliance and food safety regulatory advisory, with an expanding portfolio that reflects where environmental health intersects with public safety, industrial operations, and community impact.
DSG is embedded in the California Energy Commission's active project portfolio and holds multi-year contracts with the California Department of General Services among the most rigorous compliance environments in the state. That track record is the foundation. The direction is broader: water quality, environmental monitoring, community health, land use compliance, and the full spectrum of environmental health practice that California demands at scale.
Our team was built from the regulatory side of the table. We understand how agencies think, how inspections are conducted, and where liability exposure lives before it becomes a finding. That institutional knowledge is what separates DSG from a traditional safety consultant; and positions us to move into any environmental health discipline with the same precision we bring to the work we do today.
We do not treat compliance as paperwork. We treat it as operational intelligence.
Active Projects & Past Performance
Greenleaf 2 Project
DSG provides safety monitoring oversight for demolition activities and the transfer of modular turbines and generators, ensuring compliance with OSHA standards and site-specific safety requirements throughout all project phases.
Darden Clean Energy Project
DSG provides regulatory compliance management and environmental health oversight for the Darden Project under WC³. Services include on-site inspections, health and safety audits, and environmental monitoring integration to ensure compliance with California Energy Commission (CEC) requirements. This multi-year engagement supports long-term infrastructure safety and regulatory performance.
City of Antioch
We specialize in Food Consulting, Food Safety Manager Training for new food operators, and Emergency Preparedness training to benefit Antioch residents. Our team provides regulatory compliance help, food safety assurance, and operational efficiency guidance. Trust in our expertise for customized solutions and practical guidance.
State of California Department of General Services
We ensure clean water compliance at fifty (50) California Department of Fish and Wildlife (CDFW) facilities, we conducted water testing services on seventy-three (73) wells and water sources. Our work aligned with federal, state, and county regulations. Services included providing sampling supplies,transporting samples, and performing water quality testing as needed. Reports were submitted electronically within 30 days of sample receipt. Our company ensured water safety across CDFW regions, guaranteeing adherence to stringent regulations.
State of California Department of General Services
We provide Regulatory Compliance Management services, including water testing, GHG and air quality compliance, and energy and fuel consumption solutions to the Facilities Management Division at the Central Utilities Plant in Sacramento. Our customized solutions ensure compliance with regulatory requirements, optimize operations, and help our clients achieve their sustainability goals.
State of California Energy Commission
Definitive Safety Group ensures top-tier safety oversight for the SEGS IX Demolition Project, overseeing the safe removal of solar fields, power blocks, parabolic mirrors, steam turbines, cooling towers, and HTF systems. We maintain strict compliance with regulatory standards, minimizing risks to personnel, equipment, and the environment while upholding the highest safety standards throughout every phase of the project.
Core Services Provided
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Open Enrollment Training
View coursesclasses are currently available through our Shopify web e-learning apps, with the certification exam administered in-person. These courses are designed to meet mandated training requirements and provide a convenient option for supplemental training needs, including for new hires and employees who miss scheduled training due to illness.
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Custom Training
Book nowoffers your company the flexibility to train when it's convenient for your business, including early mornings, weekends, or during your off-season. Our hands-on, real-world scenarios can be conducted at your work-site and tailored to your SOPs and safety programs, reinforcing your safety culture
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EHS Consulting
Book nowservices help identify areas where your health and safety program may be falling short. Our registered and licensed employees provide guidance and assist in making a plan for improvement, ensuring compliance with regulations. We offer our services to help you get started and maintain compliance with safety and environmental regulations.
What makes us Unique
We are trusted safety professionals, we believe in hiring only knowledgeable and experienced professionals who have the skills required for each specific discipline.Our commitment to our clients is proven by our long-term relationships, repeat business, and referrals, which demonstrate that we are responsible and trustworthy. We offer affordable packages that have a proven track record of demonstrating that regulatory compliance does not have to break the bank.
- Training Curriculum Development
- Exam Administration
- Continuing education for Safety Professionals
- Asbestos Inspections
- HACCP Planning for Manufacturing
- Wholesale Operations
- Environmental Impact Assessments
- Annual Compliance Audits
- Facility inspections
- Quality Control and Assurance
- Sanitation Consulting
- Air and Water Quality
- Drinking Water Analysis
- Land Use
- Groundwater inspections
- Agricultural Testing
- Food Borne Illness Investigations
- Sustainability consulting
- Hazardous Material Consulting
- Green House Gas Reporting
- Land Surveying
- Environmental Planning
- Code Enforcement
- Cannabis Grow Consulting
- Storm Water
- Permit Consulting
Other Services Provided
Water Testing
Sustainablity Reporting and Training
UST & AST Inspections
Industrial Cannabis
Environmental Planning
Facility Management
Retail Food Consultations
Student Feedback
We encourage all of our users to share experiences whether good or bad, so that we may stay consistent in the service we provide.
Chayla
Very satisfied with the classes! Sent 2 managers to take the Food Managers Safety class and they found the....
Sarah
This course was informative, comprehensive and an all around great value. Personalized training and test...
Chayla
Very satisfied with the classes! Sent 2 managers to take the Food Managers Safety class and they found the....
Sarah
This course was informative, comprehensive and an all around great value. Personalized training and test...
