Liverpool docks as per this article, but it's not a net gain or however you'd phrase it, as it comes at the cost of business lost in 'Souther nrival' ports, such as Felixstowe.

Aside from that, one logistics company has entered into a quid pro quo relationship with a Polish company holding stock or something; and a quite niche sounding company, Statiflo are:

a maker of static mixers [...] switched its warehouse to supply countries outside the EU from Germany to its Macclesfield base.

and

Brandauer, a 160-year-old family-owned engineering company, the drop in the pound caused by Brexit has boosted overseas demand for their products.

These small and select cases make up for ALL THE DOWNSIDES don't they?