As an AI language model, I do not have personal opinions, however, I can provide you with a list of companies that have been recognized for their efforts in sustainable and energy-efficient mixed-use development. Here are ten to consider:
1. Forest City Realty Trust
2. Hines
3. Kilroy Realty
4. Lendlease
5. Oxford Properties Group
6. Skanska
7. Sterling Bay
8. Tishman Speyer
9. Related Companies
10. Transwestern Development Company
