The Washington Post today announced the best places to work in the Washington D.C. area as determined by its sixth annual Top Workplaces survey. Conducted in partnership with employee engagement firm Energage, LLC, The Post’s survey asked employees about the companies they work for to identify 152 of the highest ranked workplaces in the region. This year’s honorees include government contractors, law firms, nonprofits, professional and business services, and tech companies.

More than 3,000 area companies were invited to participate and 347 were surveyed. More than 61,398 employees participated in the survey questionnaires.

The Washington Post hosted an awards ceremony on Thursday, June 20 to recognize the 152 top-ranked companies. The full list along with additional content is available on The Post site. This Sunday’s edition of The Washington Post will also include a special Top Workplaces magazine, which includes profiles of three local leaders on what it takes to build success, a look at how Patient First is building loyalty among staff and patients, and a deep dive into at how some of the top companies are working to address the issue of pay equity.

Here are the top three organizations within the large, mid-size and small company categories:

Large Companies:

1. Wilmer Cutler Pickering Hale and Dorr

2. Century 21 New Millennium

3. Great American Restaurants

Mid-size companies:

1. FTS International LLC

2. IntelliWare

3. Thompson Creek Window

Small companies:

1. Matan Cos.

2. Expel Inc.

3. Studio Bleu Dance Center