Based on our experience in building our own products, we have created a core startup team that blends together a mix of what is needed for a business or consumer web startup. A startup needs a mix of database knowledge, programming skills, deployment & scalability understanding, search engine optimization insight and sales & marketing capabilities to social media marketing tact. We have created built core capabilities in these areas with micro teams that can help you in every one of the aspects above for what is needed at early stages of a product.
Here's a quick list of technologies, platforms, frameworks and best practices that make up the Mix.

PHP & CakePHP

Ruby & Rails

Deployment & Scalability on Cloud-based Platforms

iPhone Application Development

Facebook Application Development

Android Application Development

OpenSocial Application Development

Open Ebay Application Development

Salesforce.com Application Development

Outlook Plugin Development

Metrics & Analytics Dashboards

Social Media Marketing Best Practices

Search Engine Optimization

Inbound Marketing via Optimized Content Creation