Data from the Department of Budget and Management includes all payments made by state agencies for fiscal years 2013 through 2017. Vendors include private businesses, local governments, non-profit organizations, and individuals.
Top Five-Year State Agency Purchases
Rank
Agency
Vendor
Amount
Fiscal Year
1
Maryland Department of Health and Mental Hygiene
PRIORITY PARTNERS MCO
$1,416,910,817.78
2017
2
Maryland State Department of Education
PRINCE GEORGES COUNTY SCHOOL
$1,269,365,712.63
2015
3
Maryland State Department of Education
PRINCE GEORGES PUBLIC SCHOOLS
$1,221,792,954.66
2017
4
Maryland State Department of Education
BOARD OF EDUCATION OF PRINCE GEORGE'S COUNTY
$1,166,014,816.84
2016
5
Maryland Department of Health and Mental Hygiene
AMERIGROUP MARYLAND INC
$1,161,342,223.26
2017
6
Comptroller of Maryland General Accounting Division
PRIORITY PARTNERS MCO
$1,156,618,274.47
2016
7
Maryland Department of Health and Mental Hygiene
MARYLAND CARE INC
$1,144,294,967.99
2017
8
Comptroller of Maryland General Accounting Division
PRIORITY PARTNERS MCO
$1,055,595,019.27
2015
9
Maryland State Department of Education
BALTIMORE CITY PUBLIC SCHOOLS
$1,045,502,671.38
2014
10
Maryland State Department of Education
PG COUNTY PUBLIC SCHOOL
$1,027,729,009.75
2014
11
Maryland State Department of Education
PRINCE GEORGES COUNTY SCHOOL
$1,026,559,187
2013
12
Maryland State Department of Education
BALTIMORE CITY PUBLIC SCHOOLS
$1,018,147,900.57
2015
13
Maryland State Department of Education
NEW BALTIMORE CITY BOARD OF SCHOOL COMMISSIONERS
$1,005,399,297
2013
14
Comptroller of Maryland General Accounting Division
PRIORITY PARTNERS MCO
$1,003,461,182.39
2014
15
Maryland State Department of Education
BALTIMORE CITY PUBLIC SCHOOLS
$999,662,296.27
2016
16
Comptroller of Maryland General Accounting Division
UNITED HEALTHCARE OF THE MID- ATLANTIC INC
$982,359,591.62
2015
17
Comptroller of Maryland General Accounting Division
AMERIGROUP MARYLAND INC
$981,321,709.77
2014
18
Maryland State Department of Education
BALTIMORE CITY PUBLIC SCHOOLS
$976,626,601.21
2017
19
Maryland State Department of Education
MD ST RETIREMENT WORKING FUND
$956,273,359.25
2014
20
Comptroller of Maryland General Accounting Division
MARYLAND CARE INC
$938,575,889.15
2016
21
Comptroller of Maryland General Accounting Division
UNITED HEALTHCARE OF THE MID- ATLANTIC INC
$920,605,673.46
2014
22
Comptroller of Maryland General Accounting Division
AMERIGROUP MARYLAND INC
$914,707,674.97
2016
23
Comptroller of Maryland General Accounting Division
PRIORITY PARTNERS MCO
$901,792,146.30
2013
24
Comptroller of Maryland General Accounting Division
MARYLAND CARE INC
$877,501,784.79
2015
25
Comptroller of Maryland General Accounting Division
AMERIGROUP MARYLAND INC
$808,723,646.51
2015
26
Comptroller of Maryland General Accounting Division
MARYLAND CARE INC
$793,833,385.40
2014
27
Maryland State Department of Education
MD ST RETIREMENT WORKING FUND
$784,664,722
2017
28
Maryland Department of Health and Mental Hygiene
UNITED HEALTHCARE OF THE MID- ATLANTIC INC
$778,158,133.01
2017
29
Maryland State Department of Education
MONTGOMERY COUNTY PUBLIC SCHOOL
$772,290,567.94
2017
30
Comptroller of Maryland General Accounting Division
UNITED HEALTHCARE OF THE MID- ATLANTIC INC
$770,887,605.46
2016
31
Maryland State Department of Education
MD ST RETIREMENT WORKING FUND
$769,823,236
2013
32
Maryland State Department of Education
MARYLAND STATE RETIREMENT SYS PENSION TRUST FUND
$754,563,451
2015
33
Maryland State Department of Education
STATE RETIREMENT AGENCY OF MD
$745,824,692
2016
34
Maryland State Department of Education
BALTIMORE CO PUBLIC SCHOOLS
$727,673,507.92
2017
35
Maryland State Department of Education
MONTGOMERY CO PUBLIC SCHOOLS
$720,998,482.07
2015
36
Maryland State Department of Education
MONTGOMERY COUNTY MARYLAND
$715,678,111.05
2016
37
Maryland State Department of Education
MONTGOMERY CO PUBLIC SCHOOLS
$702,143,054.75
2014
38
Comptroller of Maryland General Accounting Division
MARYLAND CARE INC
$700,687,702.90
2013
39
Maryland State Department of Education
BALTIMORE CO PUBLIC SCHOOLS
$699,858,112.09
2016
40
Comptroller of Maryland General Accounting Division
AMERIGROUP MARYLAND INC
$687,600,840.30
2013
41
Maryland State Department of Education
MONTGOMERY COUNTY PUBLIC SCHOOL
$680,421,677.30
2013
42
Maryland State Department of Education
BALTIMORE CO PUBLIC SCHOOLS
$674,467,485.97
2015
43
Maryland State Department of Education
HALSTEAD ACADEMY (THE)
$656,314,784.25
2014
44
Maryland State Department of Education
BALTIMORE CO PUBLIC SCHOOLS
$627,621,803.10
2013
45
Comptroller of Maryland General Accounting Division
UNITED HEALTHCARE OF THE MID- ATLANTIC INC
$626,414,892
2013
46
Maryland Department of Health and Mental Hygiene
HEALTH CARE FINANCING ADM
$451,552,662.31
2017
47
Maryland Department of Transportation
WMATA
$445,250,139
2016
48
Maryland Department of Transportation
WMATA
$438,288,277
2015
49
Maryland Department of Transportation
WMATA
$421,665,979
2014
50
Maryland Department of Health and Mental Hygiene
MEDSTAR FAMILY CHOICE
$415,228,965.37
2017
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