Anyone operating or doing business in the City of Oakland is required to file and pay an annual business tax. Fill out the contact form or call us at (408) 436-0789 to schedule your free consultation.The Conference Center is open am – pm. ▫. The forms constitute the bulk of those necessary for the day to day keeping of the corporate formalities in a California corporation. Explore Regus meeting rooms in Oakland. Conference and training rooms, furnished meeting spaces in a prime location ready for your business. View our available spaces in Downtown Oakland to find on demand meeting rooms, large conference rooms or entire class rooms for your important upcoming event. Our conference rooms are perfect for collaboration, a professional setting to meet a client or to gather off-site for workshops and team-building sessions. Our free planning templates and tools are a great first step to plan your business. Please take a few minutes to fill out our Sea Level Rise Survey.