Given the same sales technologies, tools, and processes, not all sales people will be successful in the same sales jobs. Some will succeed where others will fail. Are some simply just better suited to sell because of their background? Because of their charm? Because of luck? Evidence suggests that selling style, and thus, sales success, is actually linked to personality.

If you were to ask a sales person what makes him so successful, he might not be able to give you a straight answer, because to him, he’s just doing what comes so naturally—due to his personality type.

Here are five personality types that are great for sales jobs.

1. The Modest Sales Person

You might not think of sales people as modest—it goes against all conventional stereotypes of the pushy, aggressive, egotistical sales professional. But a large percentage of top performing sales people actually score very high in humility and modesty. In fact, ostentatious sales people tend to alienate their customers and perform poorer than those with modesty.

Why? Because modest sales people are opposed to establishing themselves as the focal point of the purchasing decision. They are great team players and understand that they need the help of their teams and their customers makes to win accounts and close deals.

2. The Conscientious Sales Person

Second, the majority of sales superstars are also very conscientious. They have a strong sense of responsibility, reliability, and duty. They take their sales jobs seriously and feel very responsible for the results they achieve.

Because these sales people feel so responsible for their efforts, they take command of the sales process in order to control their own destiny.

3. The Achievement Oriented Sales Person

Achievement oriented sales people are focused on achieving goals and they continuously compare their performance to those goals. These types of sales people tend to have a politically orientated selling style, which means they seek to understand the politics of decision making within a company. They seek to meet with key decision-makers to achieve their goals. They strategize about the people they sell to in order to better understand how their products or services fit into the company, rather than focusing on the products or services themselves.

4. The Curious Sales Person

Curiosity is great for just about all sales jobs. It can be defined as a sales person’s hunger for information and knowledge. The best sales people are naturally more curious, always wanting to learn more about their sales process, their products or services, their leads, their prospects, and their customers. This inquisitive selling style correlates to a great presence during sales calls. This type of sales person is always asking questions—which is critical to sales today, in order to close gaps in information.

5. The Never-Discouraged Sales Person

Sales people face a lot of objections and rejections in sales. They won’t always close the deals. They could get into slumps. And this could cause them to lose their motivation and become easily discouraged with their performance. The best sales professionals, though, never get discouraged in the face of rejection, challenges, or objections. They dust themselves off, pick themselves up, regain their motivation, and don’t let their current problems at work affect their future performance.

Sales people come in all shapes and sizes. They all have their unique characteristics, traits, and qualities that make them who they are. But the sales people who are modest, conscientious, achievement oriented, curious, and never discouraged are the ones who tend to be some of the most successful in the field.

If you match these personality types, then you would likely succeed in one of the many sales jobs available and reap the benefits of a career in sales.