Do all companies use marketing channels?

Do all companies use marketing channels?

Not necessarily all companies use marketing channels.There are some that directly market their products to consumers. Eg. Dell computers ask its customers to directly login to their website , get their product configured and order the same on the internet. We also see that in case of industrial goods like raw materials, metal pieces, rods, bricks etc, goods are sold directly to the consumer which in this case is the industry itself, so there are no specific channels involved. Even in case of perishable goods like fruits, vegetables etc which are like to expire within a short span of time , they are directly brought in to the local markets from village farms without any channels of distribution as such.