upper level job

Inside Sales Development Assistant III Salary in the United States

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

As of August 01, 2026, the average salary for an Inside Sales Development Assistant III in the United States is $53,800 per year, which breaks down to an hourly rate of $26.

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

  • Top Earners (90th percentile): $65,072
  • Majority Range (25th-75th percentile): $47,200 to $59,700
  • Entry-Level (10th percentile): $41,191
Compensation Planning
Develop a Job Description
Pay Equity
2026 Compensation Trend
Recruit with AI
Smart Recruiting
View as table View as graph 25% $47,200 10% $41,191 90% $65,072 75% $59,700 $53,800 50%(Median) Didn’t find job title? Click

Inside Sales Development Assistant III Salaries by Percentile

Annual
Salary
Monthly
Pay
Weekly
Pay
Hourly
Wage
75th Percentile $59,700 $4,975 $1,148 $29
Average $53,800 $4,483 $1,035 $26
25th Percentile $47,200 $3,933 $908 $23
Check out Inside Sales Development Assistant III Job Openings in the United States
We are Inside Sales and Procurement Assistant

Cloud Cover Llc - Columbus, OH

Sales Development Representative

FMX - Columbus, OH

Sales Development Representative

Cloudelligent - Columbus, OH

Sales Development Program

OPOC.us - Columbus, OH

Search More Inside Sales Development Assistant III Jobs in the United States

Key Factors That Influence Inside Sales Development Assistant III Salaries

An Inside Sales Development 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 Development Assistant Salaries?

Experience is a primary driver of an Inside Sales Development 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): $41,136
  • Inside Sales Development Assistant II (1-3 years): $46,574
  • Inside Sales Development Assistant III (3-5 years): $53,762
  • Inside Telephone Sales Supervisor (5+ years): $71,662
  • Inside Sales Development Senior Supervisor (5+ years): $87,955
Job Role Years of Experience Average Salary
Inside Sales Development Assistant I0-1 years$41,136
Inside Sales Development Assistant II1-3 years$46,574
Inside Sales Development Assistant III3-5 years$53,762
Inside Telephone Sales Supervisor5+ years$71,662
Inside Sales Development Senior Supervisor5+ years$87,955
$41,136 Inside Sa...
$46,574 Inside Sa...
$53,762 Inside Sa...
$71,662 Inside Te...
$87,955 Inside Sa...
View as Table
View as Graph

What Am I Worth?

How Do Inside Sales Development 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 Development Assistant IIIs. For example, consider the average annual salaries in these key locations:

  • District of Columbia: $59,600.
  • California: $59,300.
  • Massachusetts: $58,600.

Top Paying Cities for Inside Sales Development 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: $67,900
  • San Francisco: $67,100
  • Oakland: $65,700

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

Inside Sales Development Assistant III salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $60,226. While startup companies pay approximate $50,950.

Inside Sales Development Assistant III Salary by Company Size

Company Size Employees Average Salary
Startup1~50$50,950
Growth Stage51~500$53,885
Established501~5000$58,159
Enterprise5000+$60,226

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

For Inside Sales Development 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 Development Assistant positions in Transportation or Edu., Gov't. & Nonprofit typically offer lower base pay, as these industries often view Inside Sales Development Assistant III as a support function rather than a direct revenue driver.

The top paying industries for an Inside Sales Development Assistant III

Industry Sector Average Annual Salary Average Hourly Rate Pay vs.Avg
Financial Services$64,560$31.020%
Pharmaceuticals$64,560$31.020%
Energy & Utilities$61,870$30.015%
Software & Networking$61,870$30.015%
Biotechnology$59,180$28.010%

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

Understanding how an Inside Sales Development 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 August 01, 2026

Inside Sales Development Assistant III Salary Growth & Career Path

Promotions are the fastest way to increase your earnings. As an Inside Sales Development 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.

Inside Sales Development Assistant III Salary Growth and Career Path
Next Step Role Estimate Salary Projected Raise
E- Commerce Strategic Sales Manager $89,900 67%
Inside Telephone Sales Supervisor $71,700 33%

Salary Trends for Inside Sales Development Assistant III

Salaries for an Inside Sales Development Assistant III can change over time, reflecting shifts in market demand and the overall economy. The median salary decreased from $52,560 in 2023 to around $51,282 in 2025, reflecting changes in demand, location, experience, and the wider economy. For a detailed analysis of Inside Sales Development Assistant III salary trends, .

Average Annual Salary of Inside Sales Development Assistant III Over Time

2022
$???
2023
$52,560
2024
$51,812
2025
$51,282
2026
$???
2027
$???
Year Average Annual Salary
2022
View More
2023 $52,560
2024 $51,812
2025 $51,282
2026
View More
2027
View More

Most common benefits for Inside Sales Development Assistant III

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

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution.

Compensation Planning

Common company salaries for Inside Sales Development Assistant III

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

Find Your Next Inside Sales Development Assistant III Job

Ready to take the next step in your career? Browse thousands of current Inside Sales Development Assistant III job openings on our job board. Use the search bar below to find your perfect match.

United States
  • iVueit

    Columbus, OH

    iVueit | Columbus, OH

    Job Description. Job Description. Sales Development Representative (SDR). Location: Columbus, OH. Base Salary: $54,000 – $75,000 + Performance Bonus. About... more

    7 Days Ago

  • Wing Assistant

    Columbus, OH

    Wing Assistant | Columbus, OH

    Sales Development Representative (Remote). Wing is on the exciting mission of redefining the future of work for companies worldwide. We are looking to be t... more

    7 Days Ago

  • FedEx

    Columbus, OH

    FedEx | Columbus, OH

    Sales Development Representative. As a member of a sales team, the Sales Development Representative is responsible for prospecting net new business, within... more

    7 Days Ago

  • Protopack LLC

    Columbus, OH

    Protopack LLC | Columbus, OH

    Job Description. Job Description. Benefits. 401(k). 401(k) matching. Paid time off. We are seeking a motivated, personable and dynamic individual for the r... more

    9 Days Ago

  • IBG Partners

    Columbus, OH

    IBG Partners | Columbus, OH

    Job Description. Job Description. Why Work Here. “Make an impact on the community and be in charge of your schedule. all while making a great income. ”. Ou... more

    10 Days Ago

  • OPOC.us

    Columbus, OH

    OPOC.us | Columbus, OH

    Job Description. Job Description. Sales Development Representative Remote Team Leader. . Hybrid Location. Must be located in Columbus, Ohio or surround are... more

    7 Days Ago

For Employees

Get a Salary Increase

Analyze the market and your qualifications to negotiate your salary with confidence.

Search Job Openings

Search thousands of open positions to find your next opportunity.

For Employers

Adjust Employee Salary

Individualize employee pay based on unique job requirements and personal qualifications.

Price My Industry Jobs

Get the latest market price for benchmark jobs and jobs in your industry.

FAQ about Inside Sales Development Assistant III

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

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

2. Is sales development representative stressful?

Sales Development Representatives often face stress due to stringent sales quotas, the need for constant engagement with prospects, and pressure to convert leads. The unpredictability of outcomes and the competitive nature of the sales landscape can further amplify stress levels. However, with a salary range of $54,800 to $71,600, the financial rewards can be motivating.

3. How much does a sales development representative III make?

The salary for a Sales Development Representative III typically ranges from $54,800 to $71,600, with a midpoint of $62,300. This reflects a competitive compensation structure, aligning with industry standards for similar roles.

4. How much commission do inside sales reps make?

Inside sales reps typically earn a base salary ranging from $54,800 to $71,600, with a mid-salary of $62,300. Commission structures often vary, with a common split of 50/50 to 80/20 between base salary and commission, depending on performance and company policies.

5. What is the highest paid sales rep salary?

The highest-paid sales representative roles in the US can earn significantly more than the Inside Sales Development Assistant, which has a salary range of $54,800 to $71,600. For example, account executives average around $153,487 annually, showcasing the potential for higher earnings in various sales positions.

6. What is the highest salary for a sales manager?

The highest salary for an Inside Sales Development Assistant is $71,600 per year. This position typically offers a salary range starting from $54,800, with a mid-level salary of $62,300, reflecting the potential for growth and experience in the role.

7. How much do inside sales reps make in the US?

The salary for an Inside Sales Development Assistant in the US ranges from $54,800 to $71,600, with a midpoint of $62,300. This reflects the base salary, and additional cash compensation may vary based on performance and company policies.

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.)

With the most extensive online, real-time compensation data available, Salary.com helps you pinpoint your exact pay target.

Are you an HR manager or compensation specialist?

Salary.com's CompAnalyst platform offers:

  • Detailed skills and competency reports for specific positions
  • Job and employee pricing reports
  • Compensation data tools, salary structures, surveys and benchmarks.
Learn about CompAnalyst
lower level job