Maybe because the company you work for doesn't want to support Uber given their shady tendencies.

Very much doubt the company has any opinion on the way Uber operates it's business.

Why? Do you know the company?

There are plenty of companies that would be willing to have such a policy, even if it's not considered a common practice.

Does your expense reporting software have hooks that Lyft can use and Uber can't?

I tried Uber's Concur integration once, but our accounting people didn't like that I had a receipt in my expense report without a hardcopy... I ended up needing to print out the email receipt so someone else could scan it in.

Honestly, I always use lyft for business because they have the ability for me to store a company card and when I use it to add a memo for when I submit expenses.

Uber has separate profiles too for work and personal.

partnerships

Finance (or maybe HR if it's an after-hours perk or something) gets incentives/kickbacks? Can anyone that works in this area confirm?

That's called commercial bribery and it's against the law in most states, including California. Enforcement is pretty slack in the US (surprise surprise) but given that it involves employees making personal profit at the expense of employers companies generally would not tolerate this sort of behavior.

Do airline miles, hotel points, and car rental loyalty rewards count, and credit card rewards count?

Whoever is earning the rewards can earn quite a bit by choosing a higher priced options since it earns them more.

Was referring to company kickbacks (rebate) not personal profit

More likely someone in Finance or purchasing negotiated a preferential deal on behalf of the company.

Preferred supplier relationships are common in corporate America, for example "all employees fly United unless United doesn't go there," or "all employee car rentals are with Avis unless Avis doesn't serve that airport," or "all employee computers are HP unless there is a special exception," etc.

The company might get a partial rebate?

I have never heard of anything remotely like that from the HR side.

I have definitely heard of negotiated travel deals where the company gets some percentage of the spend back. So for instance a Delta flight might not be cheaper than United on the ticket booking site, but it ends up costing the company less. OTOH this was a Fortune 100 company with high travel spend so they had quite a bit of leverage.

There's a big difference between the company getting a deal vs. specific people in the company getting a kickback.

Are you the same person as GP? Because that's not the same username...

Perhaps you're speaking more generally, and saying that you've never heard of shady decisions made by HR dudes? Well, I have heard of such decisions, and I doubt I'm alone.

Shady decisions could be anything, this is specifically alleging bribery and corruption.

Someone I know works at a company with the same policy.

State reason (by HR department) for not using Uber: risk of being raped.

Apparently not a problem with Lyft though, so that's good news?

maybe they chose the known unpopular option as an effort to curb employee spending.

"Unlimited free construction paper for use as toilet paper! Our gift to you! Take as much as you please!"

Uber being more mainstream has nothing to do with quality comparison.

Even so, tell me again which is actually the crappy toilet paper in this comparison...

I use Lyft primarily because of the grossly offensive scandals surrounding Uber, I'm talking even from the early days when execs were caught bragging about threatening journalists, to sex abuse, to lying to everyone about their 6 blown red lights in a single week during self driving AI testing in SF. The services do the same thing, almost exactly; Uber's track record might as well be the deciding factor.