B2C and B2B

Greetings, 

i was wondering if there is any way you can hide the b2b products from b2c customers. What i am trying to say is that i want some products to be only visible to B2B customers so B2C customers wont be able to see them. Because right now i have left the input cell from the regular product price empty and when i am browsing as a individual customer i am able to see the B2B products just without a price and without the add to cart button. 
So my question is can you hide all the products that has no price either to B2B or B2C, or like diversify the products from b2b and b2c? But also some products will be visible to b2b and b2c but with different prices as those products will be accessible from both of them, either as a retail customer or a B2B client.

But i dont want to diversify by category because some categories will have both b2b and b2c products. I wanted to hide the products that dont have a price from either b2b or b2c because if there is no price means that there is no product for either b2b or b2c

You are saying that the only way to have that seperation between B2C and B2B products is by selecting which category each one of them has access too? Isn't there any other way? Because in some categories both of them will have access but not in the same products and also the B2B will have access to B2C products but with different price. 

So how could i achieve that?