So far as I was aware, TomTom provides a commercial alternative to OSM data. Them helping OSM in that context takes some rocket calculus / is a valid question.
Their main products are centered on fast GPS tracking solutions, which works really well with maps and mapping out maps, but at the end of the day are "just" coordinates. Selling maps in and of themselves is not their core product.
TomTom has GPS traces, but if those traces lead to OSM crowdsourced corrections without rolling a vehicle then they get better data faster. This may be particularly relevant for highway changes with no associated street addresses.
