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DBA Definition
Why form a DBA?
Why use us?
By State
Illinois DBA
Click here to file for DBA in Illinois.
Illinois Small Business Statistics
(Information provided by U.S. Census Bureau)
Number of Establishments by Employment-size class
Total Establishments
'1-4'
'5-9'
'10-19'
11
311
51
24
23
21
325
87
84
58
22
191
66
60
81
23
19,606
4,881
2,931
1,788
31
5,314
2,698
2,750
2,767
42
10,476
3,961
2,926
2,066
44
19,043
11,256
6,963
4,042
48
5,818
1,338
1,025
876
51
2,864
879
750
619
52
13,203
4,082
2,637
1,671
53
8,248
2,107
1,245
453
54
25,718
4,945
3,105
1,909
55
742
293
305
351
56
8,636
2,085
1,533
1,314
61
1,328
414
397
463
62
13,175
6,371
4,160
2,399
71
2,395
547
458
433
72
9,054
4,142
4,466
4,738
81
19,394
7,144
3,854
1,774
95
162
91
125
93
99
840
38
8
2
Total
166,843
57,476
39,806
27,920
DBA Information
Why form a DBA?Why use us?What is the difference between a fictitious business name and a DBA “doing business as” name?If I have a corporation or an LLC name, do I also have to file a DBA under that name as well?If I am operating a sole proprietorship under my personal name, do I need to file a DBA? DBA State Information
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TrademarksPrenuptial AgreementsPower of AttorneyLLCIncorporationsCopyrightsDBA Questions
Can someone else use my business name if I have a DBA?What are the publication requirements?Can I conduct business and open a bank account before my DBA has been filed?How will I know if my business name is already being used? Will you perform a name check before filing my DBA form? What is a DBA?Using your DBADBA Requirements 
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