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Employment Screening Resources (ESR) was a globally recognized leader in background screening services, providing comprehensive, accurate, and compliant solutions for employers. Founded in 1997 by attorney Lester Rosen, ESR was committed to helping organizations make informed hiring decisions while ensuring legal compliance and protecting applicant rights. Their services included criminal record checks, employment and education verifications, drug testing, and I-9 compliance. In August 2021, ESR was acquired by ClearStar, a prominent provider of human capital integrity technology and services, and its operations and services have since been integrated into ClearStar.
Served as the main operational center for ESR, housing leadership, client services, operations, compliance, and technology teams dedicated to providing comprehensive background screening services.
The headquarters was equipped with secure infrastructure to handle sensitive personal data, crucial for a background screening company focused on compliance and data protection. Specific architectural highlights are not widely publicized.
ESR cultivated a work culture centered on accuracy, legal compliance (particularly FCRA), client education, and ethical practices in background screening. Emphasis was placed on continuous learning and professional development for its staff.
The Novato headquarters was significant as the operational core of a company that became a respected authority and advocate for best practices in the employment screening industry, known for its expertise and educational contributions.
Employment Screening Resources (ESR) offered comprehensive international background screening services, enabling employers to vet candidates with work, education, or residential histories outside the United States. This included international criminal record checks, verification of employment and education credentials, and other relevant searches, navigating the complex legal and data privacy regulations of various countries. These global screening capabilities have been integrated into ClearStar's broader international service offerings following the acquisition.
7110 Redwood Blvd., Suite D
Novato
California
USA
Address: N/A
N/A
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As of April 2025, Employment Screening Resources (ESR)' leadership includes:
Employment Screening Resources (ESR) has been backed by several prominent investors over the years, including:
Following its acquisition by ClearStar in August 2021, Employment Screening Resources (ESR) ceased to operate as an independent entity, and its executive team was integrated or transitioned. Consequently, there have been no ESR-specific executive hires or exits to report in the last 12 months under the ESR banner. Key leadership, such as founder Lester Rosen, took on advisory roles or transitioned out post-acquisition.
Discover the tools Employment Screening Resources (ESR) uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Prior to its acquisition and integration into ClearStar, Employment Screening Resources (ESR) utilized the domain esrcheck.com for its email communications. Common corporate email formats were likely used. Since the acquisition, communications would originate from ClearStar domains.
Likely formats for @esrcheck.com (former domain) included: f[last]@esrcheck.com (e.g., jsmith@esrcheck.com) or [first].[last]@esrcheck.com (e.g., john.smith@esrcheck.com).
Format
lrosen@esrcheck.com (Hypothetical example based on common format for the former CEO)
Example
60%
Success rate
Business Wire (ClearStar News) • August 3, 2021
ClearStar, a leading provider of Human Capital Integrity℠ technology and services, announced its acquisition of Employment Screening Resources (ESR), a prominent U.S.-based background screening company. The acquisition was aimed at enhancing ClearStar's market share, service offerings, and U.S. footprint....more
PR Newswire • September 30, 2020
Employment Screening Resources (ESR) announced it had successfully completed a surveillance audit for continuing accreditation by the Professional Background Screening Association (PBSA). This achievement demonstrated ESR's ongoing commitment to maintaining the highest industry standards in compliance, client education, and professionalism in background screening services....more
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