Products & Services
About Circle
Circles of Change helps groups collaborate, learn, and shape the future they want through participatory facilitation, strategic planning, and training that turn the people in the room into the authors of lasting change. Led by Robert Quintana Hopkins, Ph.D., Oakland, CA.
Its primary NAICS classification is 541611 (Administrative Management and General Management Consulting Services). Circle is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Website
- circlesofchange.us.com
- Address
- PO Box 24728, Oakland, California, 94623, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5416Management, Scientific, and Technical Consulting Services
- 541611Administrative Management and General Management Consulting Services
SIC Codes
- 87Engineering, Accounting, Research, Management, And Related Services
- 874Management And Public Relations Services
- 8742Marketing Consulting Services
Company Details
- Employees
- 19 (11-20)
- Annual Revenue
- $4.0M ($1M-$5M)
Circle: frequently asked questions
What does Circle do?
Circles of Change helps groups collaborate, learn, and shape the future they want through participatory facilitation, strategic planning, and training that turn the people in the room into the authors of lasting change. Led by Robert Quintana Hopkins, Ph.D., Oakland, CA.
Where is Circle located?
Circle is headquartered at PO Box 24728, Oakland, California, 94623, United States.
How many employees does Circle have?
Circle has about 19 employees (the 11-20 range).
What is Circle's annual revenue?
Circle's annual revenue is estimated at $4.0M (the $1M-$5M range).
What industry is Circle in?
Circle is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541611 (Administrative Management and General Management Consulting Services).
How can I contact Circle?
Its website is circlesofchange.us.com.
What companies are similar to Circle?
Other large industrial & mechanical companies in California include State of California, TD SYNNEX Corp, University of California and Ingram Micro Holding Corp.
Largest industrial & mechanical companies in California
Largest companies in California
Largest industrial & mechanical companies
Manufacturing sales in California, 2026
In California, Factur's 2026 study counted 98 manufacturing quotes worth $14.7M and 18 purchase orders over 12 months: 18% of quotes became orders, against 21% nationally. See the California data.
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