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Inside Sales Support Assistant III Salary in the United States

How much does an Inside Sales Support Assistant III make in the United States?

As of September 01, 2026, the average salary for an Inside Sales Support Assistant III in the United States is $53,770 per year, which breaks down to an hourly rate of $26.

However, an Inside Sales Support Assistant III's salary can vary significantly. Here’s a look at the typical salary range:

  • Top Earners (90th percentile): $64,984
  • Majority Range (25th-75th percentile): $47,140 to $59,640
  • Entry-Level (10th percentile): $41,104
Salary Factors Salary-Boosting Skills Salary by Experience Related Job Salaries Top Paying Cities Explore Related Jobs

Key Factors That Influence Inside Sales Support Assistant III Salaries

An Inside Sales Support Assistant III's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how your years of experience, geographic location and company size can directly affect your earning potential.

How Experience Level Affects Inside Sales Support Assistant Salaries?

Experience is a primary driver of an Inside Sales Support Assistant III's salary. As you build your skills and take on more complex tasks, your compensation generally increases. Here's how the average salary grows at different career stages:

  • Inside Sales Development Assistant I (0-1 years): $41,135
  • Inside Sales Development Assistant II (1-3 years): $46,054
  • Inside Sales Support Assistant III (3-5 years): $53,762
  • Inside Telephone Sales Supervisor (5+ years): $71,664
  • Inside Sales Development Senior Supervisor (5+ years): $87,953
Job Role Years of Experience Average Salary
Inside Sales Development Assistant I0-1 years$41,135
Inside Sales Development Assistant II1-3 years$46,054
Inside Sales Support Assistant III3-5 years$53,762
Inside Telephone Sales Supervisor5+ years$71,664
Inside Sales Development Senior Supervisor5+ years$87,953
View as Graph

How Do Inside Sales Support Assistant III Salaries Vary from State to State?

Your salary can change significantly depending on where you work. States with a higher cost of living and strong industrial sectors often pay more to attract Inside Sales Support Assistant IIIs. For example, consider the average annual salaries in these key locations:
  • District of Columbia: $59,530.
  • California: $59,300.
  • Massachusetts: $58,510.

Top Paying Cities for Inside Sales Support Assistant IIIs

Salaries can also vary between different cities. Major metropolitan areas or cities with a high demand for technicians often offer more competitive pay. Here are a few examples of average annual salaries in different U.S. cities:

  • San Jose: $67,820
  • San Francisco: $67,070
  • Oakland: $65,660

Inside Sales Support Assistant III Salary by Company Size: Startups vs. Enterprise

Inside Sales Support Assistant III salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $60,090. While startup companies pay approximate $50,830.

Inside Sales Support Assistant III Salary by Company Size

Company Size Employees Average Salary
Startup 1~50 $50,830
Growth Stage 51~500 $53,758
Established 501~5000 $58,025
Enterprise 5000+ $60,090

Inside Sales Support Assistant III Salary by Industry: Top Paying Sectors

For Inside Sales Support Assistant III roles, the industry you choose can affect earning potential by as much as 40% (the gap between the highest and lowest paying industries). Data shows that the Financial Services and Pharmaceuticals sectors offer the strongest compensation, at 20% above the average. In contrast, Inside Sales Support Assistant positions in Transportation or Edu., Gov't. & Nonprofit typically offer lower base pay, as these industries often view Inside Sales Support Assistant III as a support function rather than a direct revenue driver.

The top paying industries for an Inside Sales Support Assistant III

Industry Sector Average Annual Salary Average Hourly Rate Pay vs.Avg
Financial Services$64,524$31.020%
Pharmaceuticals$64,524$31.020%
Energy & Utilities$61,835$30.015%
Software & Networking$61,835$30.015%
Biotechnology$59,147$28.010%

Inside Sales Support Assistant III Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how an Inside Sales Support Assistant III's annual salary breaks down can help with budgeting. Below, you can see the average hourly rate, weekly pay, and monthly pay for this role. Use the buttons to switch between different pay periods.

Last Updated on September 01, 2026
$47,140
Average $53,770/year
$59,640
$3,928
Average $4,481/month
$4,970
$907
Average $1,034/week
$1,147
$23
Average $26/hour
$29
Annual Salary Monthly Pay Weekly Pay Hourly Wage
75th Percentile $59,640 $4,970 $1,147 $29
Average $53,770 $4,481 $1,034 $26
25th Percentile $47,140 $3,928 $907 $23

Inside Sales Support Assistant III Salary Growth & Career Path

Inside Sales Support Assistant III

Next Role

Advancement

Promotions are the fastest way to increase your earnings. As an Inside Sales Support Assistant III, you have the following paths for advancement. The table below compares the salary raises for common next-step roles. By comparing these figures, you can choose the career path that best meets your financial goals.

Next Step Role Estimate Salary Projected Raise
E- Commerce Strategic Sales Manager $89,900 67%
Inside Telephone Sales Supervisor $71,700 33%

Most common benefits for Inside Sales Support Assistant III

  • Social Security
  • 401 (k)
  • Disability
  • Healthcare
  • Pension
  • Time Off (days)

Common company salaries for Inside Sales Support Assistant III

Here are companies hiring for Inside Sales Support Assistant III and their salaries, click below for more details.

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FAQ about Inside Sales Support Assistant III

1. What industry pays the highest salary for Inside Sales Support Assistant III?

The Financial Services industry offers the highest average compensation for Inside Sales Support Assistant III roles, with salaries approximately 20% above the market median.

2. How much does inside sales earn in us?

As of now, the salary for an Inside Sales Support Assistant in the United States ranges from $54,780 to $71,560 annually, with a median salary of $62,280. This translates to approximately $26.32 to $34.43 per hour, or about $1,148 to $1,487 per week.

3. How much commission do inside sales reps make?

Inside sales support assistants typically earn a base salary ranging from $54,780 to $71,560, with a mid-salary of $62,280. Commission structures for inside sales reps often vary, with a common split of 50/50 to 80/20, depending on performance and company policies.

4. Is an inside sales rep a good job?

An inside sales rep position can be a great job, offering advantages like high earning potential, with salaries ranging from $54,780 to $71,560. The role involves pursuing new business through phone and email, providing access to a vast customer base. Additionally, these positions often allow for a favorable work-life balance.

5. How much commission do inside sales reps make?

Inside sales support assistants typically earn a base salary ranging from $54,780 to $71,560, with a mid-salary of $62,280. Commission structures for inside sales reps often vary, with a common split of 50/50 to 80/20, depending on performance and company policies.

6. What is the salary of sales and support?

The salary for an Inside Sales Support Assistant ranges from $54,780 to $71,560 per year, with a midpoint of $62,280. Entry-level positions typically earn around $54,780, while those with more experience can earn up to $71,560 annually.

7. What is the salary of EA in USA?

The salary for an Inside Sales Support Assistant in the USA typically ranges from $54,780 to $71,560, with a mid-level salary of $62,280. This reflects the varying levels of experience and responsibility within the role.

Where Does Our Salary Data Come From?

Salary.com provides salary estimates, histograms, trends, and comparisons using data from employer job postings and third-party sources.

We offer detailed salary information across multiple percentiles for your reference. (Click here to learn Why the Salary Midpoint Formula Is Crucial for Achieving Pay Equity.)

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