Spark Therapeutics is focused on the development of gene therapy. read more

EMPLOYEE PARTICIPANTS: 14

TOTAL RATINGS: 126

CEO: Jeffrey Marrazzo

Spark Therapeutics Retention Score

Spark Therapeutics is in the Top 50% of similar sized companies in its ability to retain quality employees. 54% of employees at Spark Therapeutics are excited to go to work each day. Quality employees are difficult to find which makes retaining them all the more important.

Last updated months ago.

Where This Score Ranks Spark Therapeutics' Retention

TOP
50%
In the Top 50% of 2026 Similar Sized Companies on Comparably
TOP
35%
In the Top 35% of 61 Nearby Companies in Philadelphia, PA
1st
1st place versus 5 competitors rated on Comparably

Dec

Jan

Feb

Mar

May

C+74 / 100

Jan

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Who Ranks Spark Therapeutics' Retention the Lowest?

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Spark Therapeutics Retention At a Glance

Spark Therapeutics' Retention score is rated a "C+" by 13 employees. The category helps understand Spark Therapeutics' focus and commitment to retaining employees in their organization.

Over the past three months, Spark Therapeutics' Retention score has remained steady at 74/100. Spark Therapeutics ranks in 1st place versus 5 competitors which include bluebird bio, Guardant Health, CytomX Therapeutics, Dimension Therapeutics, and Audentes Therapeutics.

Spark Therapeutics' Retention score is in the Top 50% of 2026 similar sized companies (51-200 Employees) on Comparably. The Company ranks in the Top 35% compared to 61 nearby companies in Philadelphia, PA.

Spark Therapeutics' Retention Trendline

Spark Therapeutics75
Other Companies in Philadelphia, PA
Similar Size on Comparably

How Spark Therapeutics' Retention Score is Calculated

Answer	Percent
Yes	88%
No	12%

Do you believe you're paid fairly?

Answer	Percent
Yes	83%
No	17%

Do you look forward to interacting with your coworkers?

out of 100

How would you rate the quality of your coworkers?

Answer	Percent
Yes	54%
No	46%

Are you typically excited about going to work each day?

Answer	Percent
Every week	0%
Once a month	0%
Once a quarter	0%
Once a year	0%
Never	0%

How often do you get valuable feedback on how to improve at work?

Answer	Percent
Yes	0%
No	0%

Do you approve of the job your executive team is doing at your company?

Answer	Percent
Yes	0%
No	0%

Do Your Company Leaders Do What They Should to Retain You as an Employee?

Answer	Percent
Very Secure	0%
Secure Enough	0%
Neutral	0%
Insecure	0%
Very Insecure	0%

How secure do you feel your job is at your company?

Answer	Percent
Yes	0%
No	0%

Do you have a close friend at work?

Answer	Percent
Yes	0%
No	0%

Would you leave your current job for a 20% raise at a different company?

Answer	Percent
Multiple times a week	0%
Once a week	0%
Once a month	0%
Once a quarter	0%
Never	0%

How often do you socialize with team members outside of work?

Answer	Percent
Yes	0%
No	0%

Do you feel burnt out at work?

Answer	Percent
Yes	0%
No	0%

Are you challenged at work?

Answer	Percent
Yes	0%
No	0%

Would you turn down a job offer today, for slightly more money?

Answer	Percent
Yes	0%
No	0%

Are you proud to be a part of your company?

Spark Therapeutics' Retention Rank Against Similar Sized Companies on Comparably

TOP

50%

Spark Therapeutics ranks in the Top 50% of other companies on Comparably with 51-200 Employees for Retention Score.

Spark Therapeutics' Retention Rank Against Other Companies Nearby

TOP

35%

Spark Therapeutics ranks in the Top 35% of other companies in Philadelphia, PA for Retention Score.

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