Here's a list of major AI services and the companies that own them:

1. ChatGPT - OpenAI

2. GPT-4 - OpenAI

3. DALL-E - OpenAI

4. Bard - Google

5. Gemini - Google

6. Claude - Anthropic

7. Copilot - Microsoft

8. Bing AI - Microsoft

9. Alexa - Amazon

10. Siri - Apple

11. Watson - IBM

12. Midjourney - Independent company (Midjourney, Inc.)

13. Stable Diffusion - Stability AI

14. PaLM - Google

15. LaMDA - Google

16. Gato - DeepMind (owned by Google)

17. BERT - Google

18. GPT-J - EleutherAI (open-source)

19. Llama 2 - Meta (Facebook)

20. Whisper - OpenAI

21. DALL-E 2 - OpenAI

22. Codex - OpenAI

23. Ernie Bot - Baidu

24. Xiaoice - Microsoft (spun off as independent company in 2020)

25. Replika - Luka, Inc.

26. Jasper - Jasper AI (independent company)

27. GitHub Copilot - GitHub (owned by Microsoft)

28. Grammarly AI - Grammarly, Inc.

This list covers many of the major AI services and their parent companies. It's worth noting that the AI landscape is rapidly evolving, with new services and partnerships emerging frequently.

Citations:

[1] https://www.eweek.com/artificial-intelligence/aiaas-companies/

[2] https://www.stash.com/learn/top-ai-companies/

[3] https://www.datamation.com/featured/ai-companies/

[4] https://www.theforage.com/blog/companies/top-ai-companies

[5] https://money.usnews.com/investing/articles/artificial-intelligence-stocks-the-10-best-ai-companies

Perplexity AI is an independent company and is not owned by another larger corporation. It was founded in 2022 by a group of co-founders:

1. Aravind Srinivas (CEO)

2. Johnny Ho (Co-Founder)

3. Denis Yarats (CTO)

4. Andy Konwinski (Co-Founder)

These founders previously worked at companies like Google AI, OpenAI, Meta, Quora, and Databricks before starting Perplexity[2][3]. 

Perplexity AI has raised significant funding from various investors, including Jeff Bezos, Nvidia, and Databricks, among others[3]. As of early 2024, the company was valued at over $1 billion after raising $165 million in total funding[3][5].

While Perplexity has prominent investors, it remains an independent startup and is not a subsidiary of any larger tech company. The company is positioning itself as an alternative to traditional search engines, with its own unique AI-powered search and answer capabilities[1][3].

Citations:

[1] https://www.fastcompany.com/91144894/perplexity-ai-ceo-aravind-srinivas-on-plagiarism-accusations

[2] https://www.upmarket.co/private-markets/pre-ipo/perplexity/

[3] https://technologymagazine.com/ai-and-machine-learning/perplexity-ai-a-startup-backed-by-billion-dollar-investors

[4] https://apnews.com/article/perplexity-ai-search-engine-forbes-f307cb607f0db871b05f843a3f744340

[5] https://www.fastcompany.com/91111542/perplexity-ai-unicorn-63-million-funding-round