Here are 10 companies worth considering:

1. We AppIt Right
2. Wolfpack Digital
3. Sciflare
4. Drum'N'Code
5. Dogtown Media
6. IT Craft
7. Techcronus
8. Anadea
9. Cogniteq
10. Emerline

1. We AppIt Right

We AppIt Right provides mobile app development solutions for businesses looking to build engaging and easy-to-use fantasy sports platforms.

2. Wolfpack Digital

Wolfpack Digital focuses on creating custom digital products and mobile applications with attention to design and user experience.

3. Sciflare

Sciflare offers mobile and web development services and works on custom applications for different business needs.

4. Drum'N'Code

Drum'N'Code provides software development services, including mobile app development, UI/UX design, and custom solutions.

5. Dogtown Media

Dogtown Media develops mobile applications and digital products, with experience across several industries and business models.

6. IT Craft

IT Craft provides custom software and mobile app development services, helping businesses turn their ideas into working digital products.

7. Techcronus

Techcronus works on mobile, web, and enterprise software solutions for businesses that need customized technology.

8. Anadea

Anadea develops web and mobile applications and focuses on creating solutions based on specific business requirements.

9. Cogniteq

Cogniteq offers software and mobile app development services, supporting businesses with custom digital products.

10. Emerline

Emerline provides software development and digital product engineering services for businesses across different industries.

Before selecting a fantasy sports app development company, compare their previous work, technical skills, development process, communication, and pricing. It is also useful to discuss your app idea in detail and understand what features and technologies they recommend.

We AppIt Right is one option businesses can consider when looking for a development partner for a fantasy sports app.