Covered California has released the list of Health Insurance Companies that will participate in (SHOP). Six players will provide HMO and PPO plans. Premiums appears to be close to the 2013 rates. If your company qualifies for discounts those will only be available by participation in (SHOP)
For more information please see http://www.californiahealthline.org/articles/2013/8/2/covered-california-posts-details-premium-rates-for-shop-plans.