Business Cluster Development wordpress based site. In this, we used Oshine theme. Oshine theme has its own builder. The design is fully responsive.
Oshine theme has following features:

• High Quality Design
• Intuitive Fully Visual Page Builder
• 39 Demos with 100’s of pre-built sample pages
• One click demo installer
• Unlimited ways to showcase your portfolio
• Top notch customer support
• Infinite layout possibilities
• Complete control over fonts and colors
• Compatibility with a wide array of popular plugins
• Regular Updates with new features and bug fixes
• Great Performance