A Web Development and Designing Agency is a company or team of professionals that specializes in creating and maintaining websites and web applications. These agencies offer a range of services that can include:

1. Web Design

2. Web Development

3. E-Commerce Solutions

4. Content Management Systems (CMS)

5. SEO & Digital Marketing

6. Website Maintenance

7. Consultation and Strategy

Agencies vary in size, expertise, and specialization. Some may focus solely on design, others on development, while some offer end-to-end services covering all aspects of web design and development.