How many companies where we can open new mail id

There are numerous companies that offer free email services, and the exact number is difficult to quantify. However, I can provide you with a list of some popular companies that offer free email services:

1. Gmail (Google): One of the most popular email services, with over 1.5 billion active users.
2. Yahoo Mail: Another well-known email service, with over 250 million active users.
3. Outlook.com (Microsoft): Offers a free email service with 5 GB of storage space.
4. ProtonMail: A secure and private email service, with a focus on privacy and security.
5. Tutanota: A free, open-source email service that prioritizes privacy and security.
6. Mail.com: Offers a range of free email services, including news, sports, and entertainment-themed domains.
7. Lycos: A free email service with a focus on community features and online storage.
8. AOL Mail: A free email service from America Online, with a focus on ease of use and online storage.
9. Zoho Mail: A free email service with a focus on collaboration and productivity tools.
10. FastMail: A free email service with a focus on ease of use and online storage.
11. GMX Mail: A free email service with a focus on online storage and collaboration tools.
12. Web.de: A free email service with a focus on online storage and collaboration tools.
13. Freenet: A free email service with a focus on online storage and collaboration tools.
14. Mail.ru: A free email service with a focus on online storage and collaboration tools.
15. Yandex Mail: A free email service with a focus on online storage and collaboration tools.

Please note that this is not an exhaustive list, and there are many other companies that offer free email services. Additionally, some companies may have specific requirements or restrictions for creating new email accounts.