As of September 2018, Schlesinger Group Los Angeles has 26 reviews on Facebook with an average rating of 9.6 out of 10:
https://www.facebook.com/pg/SchlesingerLosAngeles/reviews/

In their own words:

Explore the diversity of the Los Angeles market and its several million inhabitants with our team of talented account, facility and project managers. The Los Angeles team provides you with the highest quality feasibility and recruitment services in Southern California. Schlesinger Los Angeles is conveniently located in the desirable Westwood area of Los Angeles, close to Los Angeles International Airport, Beverly Hills, Santa Monica and West Hollywood.

Our spacious, high-specification Los Angles facility has been remodeled with every client need in mind. A comfortable and contemporary design also lends flexibility to accommodate various methods and research technologies, including The Wall by Schlesinger.

The world’s largest brands want to hear your opinions and they are prepared to pay you for your participation in their important research studies.

We seek articulate, enthusiastic & honest people for our panel and welcome memberships from:

• Consumers
• Business Professionals
• Healthcare Professionals
• Patients
• Caregivers

Our panel members participate in marketing research studies in a broad variety of ways:

• Through an online survey
• On the telephone, at an agreed time
• At in-person focus groups or interviews
• As a member of an online community
• By receiving products to test

Join our InspiredOpinions Panel in the United States:
https://www.schlesingergroup.com/en/get-in-touch/join-our-panel/