Last year was the fifth year of Top Places to Work, and to commemorate the occasion, we decided to look back at the most consistent companies. Check out what companies were featured each of the past five years as the best in the state.

Analysis Group
2012 rank: 1 (large employers)
The economic, financial, and strategy consulting company holds weekly Microsoft Excel training classes.

Bright Horizons (pictured)
2012 rank: 3 (largest employers)
Bright Horizons has about 19,000 employees across the country.

Edward Jones
2012 rank: 15 (medium employers)
The financial service company’s headquarters is in St. Louis, Mo.

Commonwealth Financial Network
2012 rank: 6 (large employers)
Commonwealth Financial Network was second overall in the first year of Top Places to work. Now, the company has more than 450 employees in Massachusetts.

ConvergEx's Eze Castle Software
2012 rank: 25 (large employers)
The technology company has more than 300 employees in Massachusetts. The offices of Convergex's Eze Castle Software held a Friday social hour called "beer time" before an annual auction held by their Community Service Committee in 2009.

Cell Signaling Technology
2012 rank: 18 (large employers)
This biotechnology company in Danvers has about 363 employees in the state.

American Student Assistance
2012 rank: 28 (large employers)
The financial services company employs 478 people in Mass.

Cubist Pharmaceuticals (pictured)
2012 rank: 20 (large employers)
The research facility in Lexington is the maker of the skin infection drug Cubicin.
WinterWyman
2012 rank: 16 (medium employers)
Nearly 150 people work for WinterWyman in the state.

Eastern Bank Corp.
2012 rank: 17 (largest employers)
The financial services company has about 1,670 workers in the state. Chairman and chief executive Richard Holbrook attended Boston College's Chief Executives' Club of Boston annual luncheon this year.

Eaton Vance (pictured)
2012 rank: 34 (large employers)
The public financial services company has 839 employees in Massachusetts.

John Snow Inc.
2012 rank: 25 (medium employers)
The health consulting firm has nearly 200 employees in the state.

Harvard Vanguard Medical Associates
2012 rank: 11 (largest employers)
Patients use the Wii video game console as part of their rehabilitation at Harvard Vanguard Medical Associates in Burlington.

Hill Holliday
2012 rank: 2 (large employers)
The advertising and marketing company produced the Dunkin Donuts' "What are you drinkin'?" campaign.

AEW Capital Management
2012 rank: 17 (medium employers)
The Boston-based real estate investment company employs 179 people.

Institution for Savings
2012 rank: 2 (medium employers)
The community bank based in Newburyport employs about 126 workers. 2011 profile

Benchmark Senior Living
2012 rank: 18 (largest employers)
The senior housing company employs about 4,000 people across the country.

Millenium: The Takeda Oncology Co.
2012 rank: 1 (largest employers)
The past couple years, Millenium has been inching closer to the top of its category. In 2010, it came in third, and the company reached second last year.

Natixis Global Asset Management
2012 rank: 22 (large employers)
The Boston-based financial services company has more than 300 employees in Massachusetts.

Roche Bros. Supermarkets
2012 rank: 12 (largest employers)
The local grocery chain employs about 4,200 workers in the state.

Vistaprint
2012 rank: 31 (large employers)
The Lexington-based Vistaprint offers free lunch to its employees as part of its perks. Vistaprint is a small business marketing company.

Broad Reach Healthcare/Liberty Commons
2012 rank: 23
The assisted living and nursing care company is based in Chatham.

Winchester Hospital
2012 rank: 4 (largest employers)
Winchester Hospital ranks high every year in Top Places to Work. In 2008, the hospital was the top company overall. Winchester Hospital consistently ranked in the top five companies in its category.