John Wood Group PLC ("Company")

    NOTIFICATION OF MAJOR INTEREST IN SHARES

    1.       Name of Issuer

    JOHN WOOD GROUP PLC

    2.       Reason for Notification

    ACQUISITION OF VOTING RIGHTS

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

    SCHRODERS PLC

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

    SEE 9

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

    3 AUGUST 2015

    6.       Date on which issuer notified

    4 AUGUST 2015

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

    ABOVE 5%

    8.       Notified details

    (A)         Voting rights attached to shares

    Number of voting rights - Direct - N/A

    Number of voting rights - Indirect - 18,872,713 - 5.006%

    (B)         Financial Instruments

                  N/A

    (C)         Financial Instruments with similar economic effect to Qualifying
    Financial Instruments

    Resulting situation after the triggering transaction

    Type of financial instrument - CFD

    Exercise Price - N/A

    Expiration date - N/A

    Exercise/conversion period - N/A

    Number of voting rights instrument refers to - 68,144

    Percentage of voting rights -                 Nominal - 0.018%       Delta - 1

    Total A + B + C

    Number of voting rights - 18,940,857

    Percentage of voting rights -  5.024%

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

    Schroder & Co. Limited                                                 
                     183,635                  0.049%

    Schroders (C.I.)
    Limited                                                               2,444,267     
                0.648%

    Schroder Investment Management Limited                              
    16,028,347                   4.252%

    Schroder Investment Management North America Limited          
     284,608                   0.075%

    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

    The shares referred to in section 9 are held in portfolios managed by those
    firms on a discretionary basis for clients under investment management
    agreements.

    14.     Contact name

    Chloe Talbot

    15.     Contact telephone number

    020 7658 6000

    Notification authorised by:

    LORRAINE SPROULE, DEPUTY COMPANY SECRETARY

    4 AUGUST 2015