Glassdoor is a little like Yelp. It can sometimes become a place where people unsatisfied with their jobs go to vent. But it’s also become a place people rely on when they’re job-searching, to find out if maybe the hiring manager (or worse: recruiter) was embellishing that great benefits package or if the salary wasn’t just what they thought it would be.

So we looked through Glassdoor to find the skinny on some of Philadelphia’s most well-known companies (and others that employ the most people here). The database holds 8 million company and job reviews; for starters, here’s a look at each company, and the percentage of people who said they would recommend the job to a friend.

The most popular? UPenn. The least? The School District.

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Credit: Glassdoor

Here’s a look at each company and some highlights. Click on the name of the company to view more:

Allied Barton

What it is: Security services

Where it’s headquartered: Conshohocken

Number of reviews: 1K

Overall rating: 2.9

Percent of people who would recommend to a friend: 50 percent

Salary info: Security officer – $11.61/ hour

Common comments: “Easy job,” “good pay,” “no room for advancement”

Aria Health

What it is: Healthcare system

Where it’s headquartered: Northeast Philly

Number of reviews: 25

Overall rating: 3.0

Percent of people who would recommend to a friend: 60 percent

Salary info: Registered nurse – $36.17/ hour

Common comments: “Great coworkers,” “Not a lot of opportunities to grow”

City of Philadelphia

What it is: Government

Where it’s headquartered: Center City

Number of reviews: 115

Overall rating: 3.2

Percent of people who would recommend to a friend: 63 percent

Salary info: “City worker” average $67,186

Common comments: “Work life balance,” “great benefits,” “politics dictates upper management”

Comcast Corp

What it is: Media and tech company

Where it’s headquartered: Center City

Number of reviews: 3.6K

Overall rating: 3.3

Percent of people who would recommend to a friend: 61 percent

Salary info: Customer account executive – $13.97/ hour

Common comments: “Cable and Internet for employees,” “Great benefits,” “Customer service problems”

Drexel University

What it is: College

Where it’s headquartered: University City

Number of reviews: 242

Overall rating: 3.7

Percent of people who would recommend to a friend: 78 percent

Salary info: Asst. professor – $103,381

Common comments: “Hours are flexible,” “Good work environment,” “low pay”

Einstein Healthcare Network

What it is: Hospital network

Where it’s headquartered: Olney

Number of reviews: 74

Overall rating: 3.2

Percent of people who would recommend to a friend: 56 percent

Salary info: Medical resident – $53,009/ year

Common comments: “Work-life balance,” “good benefits,” “stagnant work environment”

Hahnemann University Hospital

What it is: Hospital

Where it’s headquartered: Center City

Number of reviews: 34

Overall rating: 2.5

Percent of people who would recommend to a friend: 43 percent

Salary info: Resident – $50,595/year

Common comments: “Great coworkers,” “lack of training”

Independence Blue Cross

What it is: Insurance company

Where it’s headquartered: Center City

Number of reviews: 193

Overall rating: 3.3

Percent of people who would recommend to a friend: 62 percent

Salary info: Systems analyst – $74,715

Common comments: “Work-life balance,” “Great co-workers,” “Few benefits for interns or contractors”

Lincoln Financial Group

What it is: Financial planners

Where it’s headquartered: Radnor

Number of reviews: 327

Overall rating: 3.5

Percent of people who would recommend to a friend: 75 percent

Salary info: Customer service rep. – $32,378

Common comments: “Work-life balance,” “great benefits,” “No room for advancement”

School District of Philadelphia

What it is: School district

Where it’s headquartered: Center City

Number of reviews: 137

Overall rating: 2.4

Percent of people who would recommend to a friend: 35 percent

Salary info: Teacher – $57,888

Common comments: “Good benefits,” “professional development,” “Lack of support”

SEPTA

What it is: Transportation system

Where it’s headquartered: Center City

Number of reviews: 33

Overall rating: 2.6

Percent of people who would recommend to a friend: 45 percent

Salary info: Bus operator – $21.79/ hour

Common comments: “Great benefits,” “Flexible hours,” “little room for advancement”

Temple University

What it is: College

Where it’s headquartered: North Philly

Number of reviews: 285

Overall rating: 3.6

Percent of people who would recommend to a friend: 79 percent

Salary info: Asst. professor – $102,611

Common comments: “Work-life balance,” “great benefits,” “Lack of communication”

Thomas Jefferson University

What it is: College

Where it’s headquartered: Center City

Number of reviews: 81

Overall rating: 3.2

Percent of people who would recommend to a friend: 68 percent

Salary info: Postdoctoral fellow – $44,759

Common comments: “Great location,” “low salary”

Urban Outfitters

What it is: Clothing manufacturer

Where it’s headquartered: Navy Yard

Number of reviews: 1K

Overall rating: 3.3

Percent of people who would recommend to a friend: 58 percent

Salary info: Fashion designer $73,174

Common comments: “Great work environment,” “lack of structure”

University of Pennsylvania

What it is: College

Where it’s headquartered: University City

Number of reviews: 738

Overall rating: 4.0

Percent of people who would recommend to a friend: 87 percent

Salary info: Asst. professor – $130,832/ year

Common comments: “Good work-life balance,” “great benefits,” “Not a lot of room for advancement”

University of Pennsylvania Health System

What it is: Healthcare system

Where it’s headquartered: University City

Number of reviews: 89

Overall rating: 3.7

Percent of people who would recommend to a friend: 81 percent

Salary info: Resident – $57,777

Common comments: “Tuition benefits,” “senior management issues”

Anna Orso was a reporter/curator at Billy Penn from 2014 to 2017.