with few exceptions from this list, ageism still seems like it is in full flight. I dread growing old in tech.

It's interesting because as the company I'm with (SalesLoft, 35 on this list) has gotten larger, with more revenue and goals, we've been hiring more experienced people to help guide the company. I do wonder if these people come with higher $$ expectations that aren't possible in the early days of a startup without taking on significant amounts of risk. I feel lucky to work with these people because they know what they're talking about and aren't afraid to say it.

I look forward to leading others with their level of experience one day.

Because we all know unequal results equals discrimination, every time. No other variables

Less women? Sexism - Less old people? Ageism - Less cats? Dogism

Sounds good to me

there is a legitimate economic (I'm not advocating this) argument for hiring younger. Younger devs are cheaper, often more idealistic and more willing to work unpaid overtime. Throw some cheap perks in there (catering, beanbags etc) to encourage them to spend all their time on company turf and I'm sure it adds up to a greater company benefit than hiring an older dev even allowing for experience/skill difference.

All because they are at the healthiest time of their lives. Also that means cheaper healthcare plans

There is a lot of wisdom to be found in people who do not make their place of employment the end all be all of their existence, even if for a period of time.

There's certainly a lot more to life than work. Doubly so in your 20s.

how is posting a picture of the team with a small description of the company showing off different "personalities"?

You are right, I used the wrong word. It shows the persons who work in each company (comparing to other lists, where only the logo of the company is being shown).