Google Cloud Platform (GCP) had a wide range of customers from various industries, including technology, healthcare, finance, retail, media, and more. Some notable GCP customers at that time included:

1. Spotify: The popular music streaming service uses GCP to handle its large-scale infrastructure and data analytics needs.

2. Twitter: Twitter leverages GCP for various services, including storing and processing massive amounts of user-generated data and real-time analytics.

3. PayPal: The online payment platform utilizes GCP to provide secure and scalable payment services to its users.

4. Coca-Cola: The global beverage company has partnered with GCP to enhance its digital marketing capabilities and improve customer experiences.

5. Evernote: The note-taking app relies on GCP for its infrastructure needs, ensuring reliability and scalability for its millions of users.

6. HSBC: The multinational banking and financial services company has adopted GCP to modernize its infrastructure, enable digital transformation, and enhance security.

7. Philips: The healthcare technology company uses GCP to develop and deploy innovative healthcare solutions, including connected devices and telehealth services.

8. Home Depot: The home improvement retailer leverages GCP for its e-commerce operations, including managing inventory, analyzing customer data, and improving personalized recommendations.

9. Snapchat: The popular social media platform relies on GCP to handle its massive user base and process high volumes of multimedia content.

10. Colgate-Palmolive: The consumer goods company uses GCP to improve its supply chain management, optimize operations, and drive innovation.

It’s important to note that this list is not exhaustive and may have changed since my knowledge cutoff. New customers may have joined, while others may have transitioned to different cloud providers or adopted a multi-cloud approach. For the most up-to-date information on GCP customers, I recommend visiting the official Google Cloud website or contacting Google directly.