Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Clarity Commerce Solutions plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

Yes

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the notification obligation:

Herald Investment Management Limited

4. Full name of shareholder(s) (if different from 3.):

Bank of New York (OCS) Nominees on behalf of Herald Investment Trust Plc

5. Date of the transaction and date on which the threshold is crossed or reached:

18 September 2009

6. Date on which issuer notified:

21 September 2009

7. Threshold(s) that is/are crossed or reached:

5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares

if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights

Direct

Direct

Indirect

Direct

Indirect

GB0009274449

1,165,956

(3.64%)

1,165,956

1,815,956

(5.67%)

1,815,956

(5.67%)

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/  Conversion  Period

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

 None

 Nil

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise  price

Expiration  date

Exercise/ Conversion  period

Number of voting  rights instrument  refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

1,815,956

5.67%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Herald Investment Management Limited, a discretionary investment management, is the parent undertaking of an investment management business.

Shareholder: Herald Investment Trust (in the name of Bank of New York (OCS Nominees Limited))

1,815,956

5.67%

Total for funds under management of Herald Investment Management Limited

1,815,956

5.67%

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will cease to hold:

N/A

12. Date on which proxy holder will cease to hold voting rights:

N/A

13. Additional information:

14. Contact name:

Andrew Miller

15. Contact telephone number:

020 7553 6308