# EDGAR Filing Document

**Accession Number:** 0001371489
**File Stem:** 0001140361-23-011787
**Filing Date:** 2023-3
**Character Count:** 2390
**Document Hash:** 54fdcd5c865fb56101dfa8024f4b9c3e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-23-011787.hdr.sgml**: 20230315

**ACCESSION NUMBER**: 0001140361-23-011787

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20230315

**DATE AS OF CHANGE**: 20230315

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Information Services Group Inc.
- **CENTRAL INDEX KEY:** 0001371489
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
- **IRS NUMBER:** 205261587
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33287
- **FILM NUMBER:** 23734697

**BUSINESS ADDRESS:**
- **STREET 1:** 2187 ATLANTIC STREET
- **CITY:** STAMFORD
- **STATE:** CT
- **ZIP:** 06902
- **BUSINESS PHONE:** 203-517-3100

**MAIL ADDRESS:**
- **STREET 1:** 2187 ATLANTIC STREET
- **CITY:** STAMFORD
- **STATE:** CT
- **ZIP:** 06902

### UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### SCHEDULE 14A

#### Proxy Statement Pursuant to Section 14(a) of<br> the Securities Exchange Act of 1934 (Amendment No. &nbsp;&nbsp;&nbsp;&nbsp;)

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| | |
|:---|:---|
| Filed by the Registrant ☒ | Filed by the Registrant ☒ |
| Filed by a Party other than the Registrant ☐ | Filed by a Party other than the Registrant ☐ |
| Check the appropriate box: | Check the appropriate box: |
| ☐ | Preliminary Proxy Statement |
| ☐ | **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** |
| ☐ | Definitive Proxy Statement |
| ☒ | Definitive Additional Materials |
| ☐ | Soliciting Material under §240.14a-12 |
| **Information Services Group, Inc.** | **Information Services Group, Inc.** |
| (Name of Registrant as Specified In Its Charter) | (Name of Registrant as Specified In Its Charter) |
| (Name of Person(s) Filing Proxy Statement, if other than the Registrant) | (Name of Person(s) Filing Proxy Statement, if other than the Registrant) |
| Payment of Filing Fee (Check the appropriate box): | Payment of Filing Fee (Check the appropriate box): |
| ☒ | No fee required. |
| ☐ | Fee paid previously with preliminary materials. |
| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 |

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