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PSC competitors
Zippia score 4.8
PSC main competitors are Thompson Litton, Pmi, and Lewis Environmental.
Competitor Summary. See how PSC compares to its main competitors:
- HydroChem has the most employees (2,086).
- Employees at Thompson Litton earn more than most of the competitors, with an average yearly salary of $55,889.
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PSC vs competitors
| Company | Founding date | Zippia score | Headquarters | # of Locations | Revenue | Employees |
|---|---|---|---|---|---|---|
| 1969 | 4.8  | Houston, TX | 1 | $1.8B | 5,321 | |
| - | 3.6 | Morgan City, LA | 1 | $6.6M | 125 | |
| 1938 | 4.3 | Deer Park, TX | 1 | $120.0M | 2,086 | |
| - | 4.3 | Rockville, MD | 1 | $660,000 | 25 | |
| - | 4.0 | Hartford, CT | 1 | $2.7M | 125 | |
| 1993 | 4.3 | New Iberia, LA | 1 | $18.3M | 100 | |
Kolbe | 1975 | 4.1 | Phoenix, AZ | 1 | $22.7M | 20 |
| 1981 | 4.3 | Panama City Beach, FL | 1 | $160.0M | 544 | |
Tier One | 2001 | 3.8 | Alpharetta, GA | 1 | $284.9K | 5 |
| 2005 | 4.3 | Los Angeles, CA | 1 | $8.5M | 100 | |
| 1971 | 3.9 | Portland, OR | 1 | $17.0M | 1,000 | |
| 2013 | 4.1 | San Francisco, CA | 1 | $23.0M | 815 | |
| - | 4.3 | Wise, VA | 5 | $5.1M | 50 | |
Dnr | - | 4.4 | - | - | - | - |
| 1983 | 4.5 | Nashville, TN | 1 | $16.0M | 200 | |
| 1968 | 4.2 | Allentown, NJ | 1 | $30.0M | 200 | |
| 1996 | 4.0 | Royersford, PA | 1 | $44.2M | 75 |
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PSC salaries vs competitors
Among PSC competitors, employees at Thompson Litton earn the most with an average yearly salary of $55,889.
Compare PSC salaries vs competitors
Compare PSC job title salaries vs competitors
| Company | Highest salary | Hourly salary |
|---|---|---|
PSC | $44,083 | $21.19 |
Thompson Litton | $52,957 | $25.46 |
PMI Inc. | $46,473 | $22.34 |
Kolbe | $44,768 | $21.52 |
Crown Oilfield Svc | $43,827 | $21.07 |
SWS Environmental Services | $43,814 | $21.06 |
Rock Solid Security | $43,111 | $20.73 |
Ampol | $42,991 | $20.67 |
DPW Holdings | $42,980 | $20.66 |
HydroChem | $42,752 | $20.55 |
Lewis Environmental | $42,633 | $20.50 |
The DPI Group | $42,063 | $20.22 |
Dnr | $41,997 | $20.19 |
Patriot | $41,604 | $20.00 |
Tier One | $41,121 | $19.77 |
Bolt | $39,286 | $18.89 |
Allentown | $39,042 | $18.77 |
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PSC jobs
PSC demographics vs competitors
Compare gender at PSC vs competitors
| Job title | Male | Female |
|---|---|---|
| Pmi | 60% | 40% |
| Thompson Litton | 61% | 39% |
| Bolt | 67% | 33% |
| PSC | 70% | 30% |
Male
Female
100%
75%
50%
25%
0%
0%
25%
50%
75%
100%
Compare race at PSC vs competitors
| Company | White | Hispanic or Latino | Black or African American | Asian | Unknown | Diversity score |
|---|---|---|---|---|---|---|
| 59% | 18% | 13% | 7% | 4% | 9.8 | |
| 60% | 18% | 11% | 8% | 3% | 9.9 | |
| 64% | 14% | 12% | 7% | 3% | 9.9 | |
| 59% | 22% | 9% | 6% | 4% | 9.8 |
PSC and similar companies CEOs
Brad Clark
HydroChemRichard D. Lewis
Lewis EnvironmentalAmanda Ham
KolbeMilton Ault III
DPW HoldingsKarri Silva
PmiDave Shaffer
The DPI GroupBart Butler
Rock Solid SecurityJohn Coiro
AllentownMatthew Roche
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Updated December 14, 2025