Solutions
ASAP Drug Solutions
A Unified Solution to Drug & Alcohol Testing and Employee Screening
Tried and tested by companies across America, ASAP’s comprehensive screening services are tailored to meet the needs of your evolving workforce.
CareOnSite
The Premier Occupational Healthcare Provider
Anywhere. Anytime. Caring medical providers and cutting-edge technology means CareOnSite is your best bet for keeping your workforce healthy and safe.
OSCA
Tailored Instructor-Led and Computer-Based Safety Training
At OSCA, interactive training is best. When your workers are engaged and listening, we know they’ll be safer on the job.
Our Approach
One Company - Three Services
We customize our processes to meet your requirements.
Industry Experience
Tailored Solutions
Consistency
Clients Come First
Industries We Serve










Why Us?
History
Along the way we’ve grown to become more than just a medical provider. In 1998, ASAP Drug Solutions was launched to support our clients’ drug-testing needs. Then in 2003, OSCA was founded to offer high-quality safety training to high-hazard industries.
The Tang & Company parent company brings these three businesses – CareOnSite, ASAP, and OSCA – under the same umbrella. This move has allowed us to integrate our products, services, and corporate infrastructure, providing a truly one-stop solution for worker health, safety, and security.
Mission
In industries across the nation every day, our highly skilled and caring team provides comprehensive healthcare, drug & alcohol program administration, and compliance & safety training through integrated, value-based solutions catered to meet the unique needs of each client.
Leadership
Current Partners
Our clients are our partners.
Succeeding and growing together is the goal.














