466 attorneys in Oak Brook, Illinois
Actively licensed attorneys with a business address in Oak Brook, taken from the Illinois attorney registry and refreshed 2026-09-06.
Oak Brook skews toward solo practice: 49% of its attorneys are solo, against 35% statewide.
Email addresses for Oak Brook
We hold a verified email address for 169 attorneys with a Oak Brook business address — 36% of the 466 on this page. They are sold as a Oak Brook file of their own, $69 one-time.
Every address is matched to a named attorney whose licence you can look up. Bounces are refunded.
169 verified Oak Brook addresses.
100% email · 100% last name · 100% city · 99% phone · 95% year admitted · 93% firm
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Firm size mix in Oak Brook
| Firm size | Attorneys | Share |
|---|---|---|
| Solo practice | 208 | 49% |
| 2–10 attorneys | 201 | 48% |
| 11–50 attorneys | 12 | 3% |
| 51+ attorneys | 0 | 0% |
Firms with the most attorneys in Oak Brook
| Firm or employer | Attorneys |
|---|---|
| Lillig & Thorsness, Ltd | 12 |
| Engler Callaway Baasten & Sraga, LLC | 10 |
| The Inland Real Estate Group, LLC | 9 |
| Advocate Health | 8 |
| Social Security Administration | 7 |
| Bodell Bove LLC | 6 |
| Ace Hardware Corporation | 6 |
| Asa Law Group | 6 |
| Tiesenga & Deboer LLP | 5 |
| Law Offices Of David K. Barhydt | 5 |
Sample rows
Phone numbers are masked here; the delivered file is not.
| Name | Firm | Phone |
|---|---|---|
| Larissa Addison | Insite Real Estate, L.L.C | (630) 217-6758 |
| Michael Agruss | Agruss Law Firm, LLC | (312) 462-4112 |
| Dino Agudo | Law Office Of Dino Agudo | (708) 714-7636 |
| Balrina Ahluwalia | Po Box | Not available |
| Ayesha Ahmad | Ace Hardware Corporation | (630) 990-3374 |
| Shereen Ahmed | Madison Lawyers Group, LLC | (312) 322-0701 |
Questions about the Oak Brook list
Where does this data come from?
The Illinois attorney registry, which the state publishes as a public record. We do not buy or merge third-party compiled lists.
Does every row have an email address?
No — and no honest attorney list has one for every row. The roster on this page carries no email column at all. We hold addresses for 169 attorneys in Oak Brook (36%), sold as the Oak Brook email file above.
Where do the email addresses come from?
The Illinois bar publishes a member email address on its own record, so most of ours come straight from the registry rather than from a crawl. Either way an address is only sold once it belongs to a named, currently-licensed attorney.
How current is it?
Last refreshed 2026-09-06 — that is the date of the scan behind these figures, not a promise of a schedule.