GSO overview

GSO offers guaranteed priority overnight shipping for California, Nevada, Arizona and New Mexico, the highest rate of on-time deliveries, and savings of 40% or more over national carriers.
The staff at GSO come from unusually diverse demographic backgrounds. The company is 22.9% female and 51.5% ethnic minorities. GSO employees are more likely to be members of the Republican Party than the Democratic Party, with 53.1% of employees identifying as members of the Republican Party. But those numbers could change quickly because the turnover rate at GSO is relatively high. Employees at GSO stay with the company for an average of 2.0 years before leaving. The average employee at GSO makes $34,356 per year. Pay at GSO is significantly lower than some of its highest paying competitors, like Black Horse Carriers, Spee Dee Delivery Service, and Air Transport International, which pay $47,133, $45,885, and $45,499, respectively.
A large transportation company with 1,408 employees, GSO is headquartered in California.







Founded in



Pleasanton, CA


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GSO Rankings

GSO is ranked #7 on the Best Transportation Companies to Work For in California list. Zippia's Best Places to Work lists provide unbiased, data-based evaluations of companies. Rankings are based on government and proprietary data on salaries, company financial health, and employee diversity.

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GSO Salaries

How much does GSO pay?
The national average salary for a GSO employee in the United States is $34,356 per year. Employees in the top 10 percent can make over $57,000 per year, while employees at the bottom 10 percent earn less than $20,000 per year.
Salary Score
Average Employee Earnings

GSO Salaries By Job Title

While GSO employees earn an average yearly salary of $34,356, different roles can command different wages. Some of the positions that earn high wages at GSO include Payroll Supervisor, Account Manager, Sales Representative, and Messenger. A typical Payroll Supervisor salary at GSO is $67,911 per year. To get a better sense of the salaries at GSO, other roles such as Sort Line and Delivery Driver can be considered as well. For comparison, the title Sort Line at GSO earns $26,245 per year.

GSO careers

On average, employees at GSO stay with the company for 2.0 years. Employees most commonly join GSO after leaving McDonald's. When they leave GSO, they most frequently get their next job at The Home Depot.

Average Length of Employment


2.0 years
OnTrac1.7 years
Top Employers Before GSO
Walmart10.4 %
FedEx8.4 %
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Top Employers After GSO
Walmart9.4 %
FedEx7.3 %
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GSO Financial Performance

Performance Score
We calculated the performance score of companies by measuring multiple factors, including revenue, longevity, and stock market performance.



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GSO Competitors

Some of the competitors of GSO are Black Horse Carriers, Spee Dee Delivery Service, and Air Transport International. Employees at Black Horse Carriers earn more than most of the competition, with an average yearly salary of $47,133. Employees at Spee Dee Delivery Service earn an average of $45,885 per year, and the employees at Air Transport International earn an average salary of $45,499 per year.

Frequently Asked Questions about GSO

When was GSO founded?

GSO was founded in 1995.

How many Employees does GSO have?

GSO has 1,408 employees.

What industry is GSO in?

GSO is in the transportation industry.

What type of company is GSO?

GSO is a private company.

Who are GSO's competitors?

GSO competitors include OnTrac, Spee Dee Delivery Service, Eastern Connection, United Parcel Service, LaserShip, Beavex, ABX Air, Forward Air, MV Transportation, Courier Systems, Professional Transportation, California Cartage, LSO, Black Horse Carriers, Straight Shot Express, PODS, Action Logistics, PROLOGIX EAST, Air Transport International, Cargo Force.

Where is GSO's headquarters?

GSO's headquarters is in Pleasanton, CA.

What is GSO's website?

You can find the GSO website at

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You can find out what it is like to work at GSO, also known as GOLDEN STATE OVERNIGHT DELIVERY SERVICE INC, GOLDEN STATE OVERNIGHT DELIVERY SERVICE, INC., GSO, Golden State Overnight Delivery Service Inc and Golden State Overnight Delivery Service Inc..

Zippia gives an in-depth look into the details of GSO, including salaries, political affiliations, employee data, and more, in order to inform job seekers about GSO. The employee data is based on information from people who have self-reported their past or current employments at GSO. While we have made attempts to ensure that the information displayed are correct, Zippia is not responsible for any errors or omissions, or for the results obtained from the use of this information. The data presented on this page does not represent the view of GSO and its employees or that of Zippia.