what type of fire organization is designed to protect manufacturing plants and oil refineries and may be designed by buisnesses?

Such businesses can and do contract with private fire fighting companies such as RFTC.
See http://www.rtfc.org/wiki/RTF/HomePage

If you are looking for a type of fire organization that is specifically designed to protect manufacturing plants and oil refineries, it is likely referring to Industrial or Private Fire Departments. These are fire departments that are established and operated by businesses for the purpose of protecting their own facilities.

To find specific private fire fighting companies that offer these services, you can follow these steps:

1. Start by conducting an online search using keywords like "industrial fire protection services" or "private fire fighting companies."
2. Evaluate the search results to find companies that specialize in providing fire protection services to manufacturing plants and oil refineries. Pay attention to their expertise, experience, and reputation.
3. Visit the websites of the potential companies to gather detailed information about the services they offer, their clientele, and any certifications they may have.
4. Additionally, you can search for industry-specific associations or organizations related to manufacturing plants and oil refineries. They might have directories or resources that can help you find suitable private fire fighting companies.
5. Contact the companies directly to inquire about their services, pricing, and availability. It's essential to discuss your specific needs and requirements with them to ensure they can adequately meet your fire protection needs.

One example of a private fire fighting company that provides services to industrial facilities is the Racine Fire Training Center (RFTC). You can find more information about them on their website at http://www.rtfc.org/wiki/RTF/HomePage.

Remember to carefully assess the capabilities, reputation, and reliability of any private fire fighting company you consider hiring. It is crucial to ensure they have the necessary expertise and resources to effectively protect manufacturing plants and oil refineries.