**Exhibit 8**   1 99.999 LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   2 ADVANTICA CORPORATE VENTURES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   3 ADVANTICA LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   4 ADVANTICA PTY LIMITED  SUITE 18 , GREENWICH SQUARE, 130-134 PACIFIC HIGHWAY,  GREENWICH NSW, 2065 AUSTRALIA   5 ADVANTICA, INC.  1170 HARRISBURG PIKE, CARLISLE, PA 17013   6 AERIAL GROUP LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   7 AERIAL UK LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   8 AGL SYSTEMS INTERNATIONAL LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   9 AMPLE DESIGN LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   10 ARTERION LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   11 ASSETHALL LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   12 BEEGAS NOMINEES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   13 BLACKWATER 1 LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   14 BLACKWATER 3 LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   15 BLACKWATER 4 LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   16 BLACKWATER 5 LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   17 BLACKWATER A LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   18 BLACKWATER AGENCY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   19 BLACKWATER B LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH
 

 
   20 BLACKWATER C LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   21 BLACKWATER D LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH 22 BLACKWATER E LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   23 BLACKWATER H LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   24 BLACKWATER J LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   25 BLACKWATER SC 1 LIMITED  191 WEST GEORGE STREET, GLASGOW, G2 2LD   26 BRITISH TRANSCO CAPITAL, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582  UNITED STATES   27 BRITISH TRANSCO FINANCE (NO 1) LIMITED  C/O MAPLES AND CALDER, UGLAND HOUSE, SOUTH GEORGE STREET  GEORGE TOWN, GRAND CAYMAN  P O BOX 309 GT, CAYMAN ISLANDS   28 BRITISH TRANSCO FINANCE (NO 2) LIMITED  C/O MAPLES AND CALDER, UGLAND HOUSE, SOUTH GEORGE STREET  GEORGE TOWN, GRAND CAYMAN  P O BOX 309 GT, CAYMAN ISLANDS   29 BRITISH TRANSCO FINANCE (NO 3) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   30 BRITISH TRANSCO FINANCE (NO 5) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   31 BRITISH TRANSCO FINANCE, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   32 BRITISH TRANSCO INTERNATIONAL FINANCE BV  SCHOUWBURGPLEIN 30-34, ROTTERDAM 3012 CL, THE NETHERLANDS   33 BSC CO LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   34 CONTIGUOUS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   35 EASTLANDS (BENEFITS ADMINISTRATION) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   36 EASTLANDS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   37 ELECTRACOM LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   38 ELEXON LIMITED  4TH FLOOR, 350 EUSTON ROAD, LONDON, NW1 3AW
 

 
   39 ENERGI LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   40 ENERGIS SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   41 ENERGY MARKET OPERATIONS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH 42 ENERGY SETTLEMENTS AND INFORMATION SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   43 EUA BIOTEN, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   44 EUA ENERGY INVESTMENT CORPORATION  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   45 EUA FRC II ENERGY ASSOCIATES  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   46 FASTNET CALOOSAHATCHEE COMMUNICATIONS LIMITED  FGC CORPORATE SERVICES LTD, 125 MAIN STREET, TORTOLA, BVI   47 FULCRUM CONNECTIONS (EMPLOYERS) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   48 FULCRUM CONNECTIONS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   49 GAS RESEARCH & TECHNOLOGY CENTRE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   50 GEMSTONE SOFTWARE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   51 GRANITE STATE ELECTRIC COMPANY  9 LOWELL ROAD, SALEM, NEW HAMPSHIRE 03079, UNITED STATES   52 GRID INTERNATIONAL LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   53 GRID INVESTMENT HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   54 GRID ONE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   55 GRIDAMERICA HOLDINGS INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   56 GRIDAMERICA LLC  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   57 GRIDCOM LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   58 GRIDMET LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH
 

 
   59 GRIDNAT LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   60 GRTC LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   61 HUDSON POINTE, INC  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202  UNITED STATES   62 INFRASTRUCTURE TECHNOLOGY GROUP LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   63 INTERNATIONAL POWER SYSTEMS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   64 INVERSIONES ABC LIMITADA  AVENIDA DEL CONDOR 760, HUECHURABA  SANTIAGO, CHILE   65 IPS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   66 ITG LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   67 LAND MANAGEMENT AND DEVELOPMENT, INC  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK, 13202, UNITED STATES   68 LANDRANCH LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   69 LANDWEST, INC  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK, 13202, UNITED STATES   70 LATTICE ENERGY SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   71 LATTICE GROUP EMPLOYEE BENEFIT TRUST LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   72 LATTICE GROUP INTERNATIONAL HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   73 LATTICE GROUP PLC  1 - 3 STRAND, LONDON, WC2N 5EH   74 LATTICE GROUP SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   75 LATTICE GROUP TRUSTEES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   76 LATTICE GROUP US HOLDINGS, INC.  1209 ORANGE STREET, WILMINGTON, DE 19801   77 LATTICE INTELLECTUAL PROPERTY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   78 LATTICE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH
 

 
   79 LATTICE OPSCO LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   80 LATTICE TELECOM FINANCE (NO 1) LIMITED  15 - 19 ATHOL STREET, DOUGLAS, ISLE OF MAN, IM1 1LB   81 LATTICE TELECOMMUNICATIONS ASSET DEVELOPMENT COMPANY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   82 LOUGHBOROUGH PARK MANAGEMENT LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   83 MAINSTREAM FORTY-SEVEN LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   84 MASSACHUSETTS ELECTRIC COMPANY  55 BEARFOOT ROAD, NORTHBOROUGH MA 01532  UNITED STATES   85 MELMAR LIMITED  THIRD FLOOR, ST. GEORGE'S COURT, UPPER CHURCH STREET, DOUGLAS, ISLE  OF MAN, IM1 1EE   86 MERCATOR DEVELOPMENTS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   87 METROWEST REALTY LLC  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   88 MOREAU PARK, INC  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   89 NANTUCKET ELECTRIC COMPANY  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   90 NATGRID FINANCE HOLDINGS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   91 NATGRID FINANCE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   92 NATGRID HOLDINGS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   93 NATGRID INVESTMENTS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   94 NATGRID LIMITED  1-3 STRAND, LONDON, WC2N 5EH   95 NATGRID ONE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   96 NATIONAL GRID (IOM) UK LTD  2ND FLOOR, SIXTY CIRCULAR ROAD, DOUGLAS, ISLE OF MAN, IM1 1SA   97 NATIONAL GRID (IRELAND) 1 LIMITED  25/28 NORTH WALL QUAY, DUBLIN 1  REPUBLIC OF IRELAND
 

 
   98 NATIONAL GRID (IRELAND) 2 LIMITED  25/28 NORTH WALL QUAY, DUBLIN 1   99 NATIONAL GRID (SOUTHALL) GENERAL PARTNER LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   100 NATIONAL GRID (SOUTHALL) LP LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   101 NATIONAL GRID (US) HOLDINGS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   102 NATIONAL GRID (US) INVESTMENTS  1-3 STRAND, LONDON, WC2N 5EH   103 NATIONAL GRID (US) INVESTMENTS 2  1-3 STRAND, LONDON, WC2N 5EH   104 NATIONAL GRID (US) INVESTMENTS 3  1-3 STRAND, LONDON, WC2N 5EH   105 NATIONAL GRID (US) INVESTMENTS 4  1-3 STRAND, LONDON, WC2N 5EH   106 NATIONAL GRID (US) INVESTMENTS 5  1-3 STRAND, LONDON, WC2N 5EH   107 NATIONAL GRID (US) INVESTMENTS 6  1-3 STRAND, LONDON, WC2N 5EH   108 NATIONAL GRID (US) PARTNER 1 LIMITED  1-3 STRAND, LONDON, WC2N 5EH   109 NATIONAL GRID (US) PARTNER 2 LIMITED  1-3 STRAND, LONDON, WC2N 5EH   110 NATIONAL GRID ADVANTICA LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   111 NATIONAL GRID AUSTRALIA PTY LIMITED  OFFICES OF MAPLES AND CALDER, UGLAND HOUSE, PO BOX 309, SOUTH CHURCH  STREET, GEORGE TOWN, GRAND CAYMAN, CAYMAN ISLANDS   112 NATIONAL GRID AUSTRALIA PTY LTD  LEVEL 3, 410 COLLINS STREET, MELBOURNE 3000  AUSTRALIA   113 NATIONAL GRID BASSLINK LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   114 NATIONAL GRID BRAZIL B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   115 NATIONAL GRID BRAZIL FINANCE  1-3 STRAND, LONDON, WC2N 5EH   116 NATIONAL GRID BRAZIL TRANSMISSION B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   117 NATIONAL GRID CHILE B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS
 

 
   118 NATIONAL GRID COMMERCIAL HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   119 NATIONAL GRID COMMUNICATIONS, INC.  80 CENTRAL STREET, BOXBOROUGH MA 01719   120 NATIONAL GRID COMPANY HOLDINGS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   121 NATIONAL GRID CONNECTIONS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   122 NATIONAL GRID DISTRIBUTION LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   123 NATIONAL GRID EIGHT LIMITED  1-3 STRAND, LONDON, WC2N 5EH   124 NATIONAL GRID EIGHTEEN LIMITED  1-3 STRAND, LONDON, WC2N 5EH   125 NATIONAL GRID ELECTRICITY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   126 NATIONAL GRID ELECTRICITY TRANSMISSION PLC  1-3 STRAND, LONDON, WC2N 5EH   127 NATIONAL GRID ELEVEN LIMITED  1-3 STRAND, LONDON, WC2N 5EH   128 NATIONAL GRID FIFTEEN LIMITED  1-3 STRAND, LONDON, WC2N 5EH   129 NATIONAL GRID FINANCE B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   130 NATIONAL GRID FIVE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   131 NATIONAL GRID FOUR LIMITED  1-3 STRAND, LONDON, WC2N 5EH   132 NATIONAL GRID FOURTEEN LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   133 NATIONAL GRID GAS HOLDINGS PLC  1 - 3 STRAND, LONDON, WC2N 5EH   134 NATIONAL GRID GAS PLC  1 - 3 STRAND, LONDON, WC2N 5EH   135 NATIONAL GRID GOLD LIMITED  1-3 STRAND, LONDON, WC2N 5EH   136 NATIONAL GRID GRAIN LNG LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   137 NATIONAL GRID GROUP LIMITED  1-3 STRAND, LONDON, WC2N 5EH
 

 
   138 NATIONAL GRID HOLDINGS B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   139 NATIONAL GRID HOLDINGS INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   140 NATIONAL GRID HOLDINGS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   141 NATIONAL GRID HOLDINGS ONE PLC  1-3 STRAND, LONDON, WC2N 5EH   142 NATIONAL GRID HOLLAND LIMITED  1-3 STRAND, LONDON, WC2N 5EH   143 NATIONAL GRID INDIA B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   144 NATIONAL GRID INDUS B.V.  1-3 STRAND, LONDON, WC2N 5EH   145 NATIONAL GRID INSURANCE COMPANY (IRELAND) LIMITED  30-39 FITZWILLIAM SQUARE, DUBLIN 2, IRELAND   146 NATIONAL GRID INSURANCE COMPANY (ISLE OF MAN) LIMITED  THIRD FLOOR, JUBILEE BUILDINGS, VICTORIA STREET, DOUGLAS, ISLE OF  MAN, IM1 2LR   147 NATIONAL GRID INTERCONNECTORS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   148 NATIONAL GRID INTERNATIONAL LIMITED  1-3 STRAND, LONDON, WC2N 5EH   149 NATIONAL GRID IRELAND THREE  C/O A&L GOODBODY SOLICITORS, 25/28 NORTH WALL QUAY, DUBLIN 1, IRELAND   150 NATIONAL GRID JERSEY HOLDINGS FIVE LIMITED  WHITELEY CHAMBERS, DON STREET, ST HELIER, JERSEY JE4 9WG   151 NATIONAL GRID JERSEY INVESTMENTS LIMITED  WHITELEY CHAMBERS, DON STREET, ST HELIER, JERSEY, JE4 9WG   152 NATIONAL GRID JERSEY INVESTMENTS TWO LIMITED  WHITELEY CHAMBERS, DON STREET, ST HELIER, JERSEY, JE4 9WG   153 NATIONAL GRID LAND AND PROPERTIES LIMITED  1-3 STRAND, LONDON, WC2N 5EH   154 NATIONAL GRID LAND DEVELOPMENTS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   155 NATIONAL GRID LAND INVESTMENTS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   156 NATIONAL GRID LNG LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   157 NATIONAL GRID MANQUEHUE B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS
 

 
   158 NATIONAL GRID MARKET SERVICES LIMITED  1-3 STRAND, LONDON, WC2N 5EH   159 NATIONAL GRID METERING LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   160 NATIONAL GRID NETHERLANDS ONE B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   161 NATIONAL GRID NETHERLANDS THREE B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   162 NATIONAL GRID NETHERLANDS TWO B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   163 NATIONAL GRID NINE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   164 NATIONAL GRID NINETEEN LIMITED  1-3 STRAND, LONDON, WC2N 5EH   165 NATIONAL GRID ONE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   166 NATIONAL GRID OVERSEAS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   167 NATIONAL GRID OVERSEAS TWO LIMITED  1-3 STRAND, LONDON, WC2N 5EH   168 NATIONAL GRID PENSIONS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   169 NATIONAL GRID PLC  1-3 STRAND, LONDON, WC2N 5EH   170 NATIONAL GRID POLAND B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   171 NATIONAL GRID PROCUREMENT BV  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   172 NATIONAL GRID PROPERTY (NORTHAMPTON) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   173 NATIONAL GRID PROPERTY (WARWICK) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   174 NATIONAL GRID PROPERTY DEVELOPMENTS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   175 NATIONAL GRID PROPERTY HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   176 NATIONAL GRID PROPERTY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   177 NATIONAL GRID PROPERTY NOMINEES (NO 1) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH
 

 
   178 NATIONAL GRID PROPERTY NOMINEES (NO 2) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   179 NATIONAL GRID PROPERTY REGENERATION LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   180 NATIONAL GRID SEVEN LIMITED  1-3 STRAND, LONDON, WC2N 5EH   181 NATIONAL GRID SEVENTEEN LIMITED  1-3 STRAND, LONDON, WC2N 5EH   182 NATIONAL GRID SIX LIMITED  1-3 STRAND, LONDON, WC2N 5EH   183 NATIONAL GRID SIXTEEN LIMITED  1-3 STRAND, LONDON, WC2N 5EH   184 NATIONAL GRID TELECOMS INVESTMENT LIMITED  1-3 STRAND, LONDON, WC2N 5EH   185 NATIONAL GRID TEN  1-3 STRAND, LONDON, WC2N 5EH   186 NATIONAL GRID THREE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   187 NATIONAL GRID TRANSCO EUROPE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   188 NATIONAL GRID TRANSCO GROUP LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   189 NATIONAL GRID TRANSCO HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   190 NATIONAL GRID TRANSCO INTERNATIONAL LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   191 NATIONAL GRID TRANSCO ONE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   192 NATIONAL GRID TRANSCO UK LIMITED  1-3 STRAND, LONDON, WC2N 5EH   193 NATIONAL GRID TRANSMISSION LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   194 NATIONAL GRID TRANSMISSION SERVICES CORPORATION  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   195 NATIONAL GRID TWELVE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   196 NATIONAL GRID TWENTY LIMITED  1-3 STRAND, LONDON, WC2N 5EH   197 NATIONAL GRID TWENTY ONE LIMITED  1-3 STRAND, LONDON, WC2N 5EH
 

 
   198 NATIONAL GRID TWO LIMITED  1-3 STRAND, LONDON, WC2N 5EH   199 NATIONAL GRID UK LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   200 NATIONAL GRID US 6 LLC  CORPORATION SERVICE COMPANY, 2711 CENTERVILLE ROAD, SUITE 400, NEW  CASTLE COUNTY, WILMINGTON DE 19808, UNITED STATES   201 NATIONAL GRID US 7 INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   202 NATIONAL GRID US8 INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   203 NATIONAL GRID US LLC  CORPORATION SERVICE COMPANY, 2711 CENTERVILLE ROAD, SUITE 400,  WILMINGTONDE 19808, UNITED STATES   204 NATIONAL GRID USA  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   205 NATIONAL GRID USA SERVICE COMPANY, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   205A NATIONAL GRID WIRELESS AERIAL SITES PLC  1-3 STRAND, LONDON, WC2N 5EH   206 NATIONAL GRID WIRELESS FINANCE PLC  1 - 3 STRAND, LONDON, WC2N 5EH   207 NATIONAL GRID WIRELESS HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   208 NATIONAL GRID WIRELESS HOLDINGS, INC.  80 CENTRAL STREET, BOXBOROUGH MA 01719   209 NATIONAL GRID WIRELESS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   210 NATIONAL GRID WIRELESS NO 2 LIMITED  1-3 STRAND, LONDON, WC2N 5EH   211 NATIONAL GRID WIRELESS NO 3 LIMITED  1-3 STRAND, LONDON, WC2N 5EH   212 NATIONAL GRID WIRELESS NO 4 LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   213 NATIONAL GRID WIRELESS PENSION TRUST LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   214 NATIONAL GRID WIRELESS SERVICES, INC.  80 CENTRAL STREET, BOXBOROUGH MA 01719   215 NATIONAL GRID ZAMBIA B.V.  ROKIN 55, 1012 KK AMSTERDAM, NETHERLANDS   216 NATIONAL GRID ZAMBIA LIMITED  1-3 STRAND, LONDON, WC2N 5EH
 

 
   217 NEES COMMUNICATIONS, INC.  80 CENTRAL STREET, BOXBOROUGH MA 01719   218 NEES ENERGY, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   219 NEES TELECOMMUNICATIONS CORP.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   220 NETMAP LIMITED  1-3 STRAND, LONDON, WC2N 5EH   221 NETWORK MAPPING LIMITED  1-3 STRAND, LONDON, WC2N 5EH   222 NEW ENGLAND ELECTRIC TRANSMISSION CORPORATION  9 LOWELL ROAD, SALEM, NEW HAMPSHIRE, 03079, UNITED STATES   223 NEW ENGLAND ENERGY INCORPORATED  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   224 NEW ENGLAND HYDRO FINANCE COMPANY, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   225 NEW ENGLAND POWER COMPANY  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   226 NEW ENGLAND WHOLESALE ELECTRIC COMPANY  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   227 NEWHC, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   228 NG AUSTRALIA GP PTY LTD  LEVEL 3, 410 COLLINS STREET, MELBOURNE 3000, AUSTRALIA   229 NG AUSTRALIA LLP  LEVEL 3, 410 COLLINS STREET, MELBOURNE 3000, AUSTRALIA   230 NG CHICAGO I LLC  2711 CENTERVILLE ROAD, SUITE 400, WILMINGTON, DELAWARE 19808, USA   231 NG CHICAGO II, LLC  2711 CENTERVILLE ROAD, SUITE 400, WILMINGTON, DELAWARE 19808, USA   232 NG JERSEY LIMITED  WHITELEY CHAMBERS, DON STREET, ST. HELIER, JERSEY, JE4 9WG   233 NG LEASING LIMITED  1-3 STRAND, LONDON, WC2N 5EH   234 NG LUXEMBOURG TWO SARL  46A AVENUE JOHN F KENNEDY, L 1855 LUXEMBOURG   235 NG MALTA ONE LIMITED  LINE WALL ROAD, GIBRALTAR   236 NG MALTA TWO LIMITED (IN LIQUIDATION)  90 STRAIT STREET, VALETTA, MALTA
 

 
   237 NG NOMINEES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   237A NG PROCUREMENT HOLDINGS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   238 NGC (GB) LIMITED  1-3 STRAND, LONDON, WC2N 5EH   239 NGC DO BRASIL PARTICIPACOES LTDA  AV. RIO BRANCO NO. 1, ROOM 1608, RIO DE JANEIRO  RJ, BRAZIL   240 NGC EMPLOYEE SHARES TRUSTEE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   241 NGC ENERGY LIMITED  1-3 STRAND, LONDON, WC2N 5EH   242 NGC INDUS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   243 NGC IT LIMITED  1-3 STRAND, LONDON, WC2N 5EH   244 NGC LEISURE LIMITED  1-3 STRAND, LONDON, WC2N 5EH   245 NGC TWO LIMITED  1-3 STRAND, LONDON, WC2N 5EH   246 NGC ZAMBIA LIMITED  1-3 STRAND, LONDON, WC2N 5EH   247 NGET LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   248 NGG (DELAWARE) LLC  CORPORATION SERVICE COMPANY, 2711 CENTERVILLE ROAD, SUITE 400,  WILMINGTONDE 19808, UNITED STATES   249 NGG FINANCE (NO 1) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   250 NGG FINANCE PLC  1-3 STRAND, LONDON, WC2N 5EH   251 NGG LIMITED  1-3 STRAND, LONDON, WC2N 5EH   252 NGG TELECOMS HOLDINGS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   253 NGG TELECOMS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   254 NGT CONNECTIONS (NO 1) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   255 NGT CONNECTIONS (NO 2) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH
 

 
   256 NGT FIVE LIMITED  C/O MAPLES AND CALDER, UGLAND HOUSE,, SOUTH GEORGE STREET, GEORGE  TOWN, GRAND CAYMAN, P O BOX 309 GT, CAYMAN ISLANDS   257 NGT FOUR LIMITED  C/O M & C  CORPORATE SERVICES, PO BOX 309GT, UGLAND HOUSE, SOUTH  CHURCH STREET, GRAND CAYMAN, CAYMAN ISLANDS, CAYMAN ISLANDS   258 NGT HOLDING COMPANY (ISLE OF MAN) LIMITED  3RD FLOOR, ST GEORGE'S COURT, UPPER CHURCH STREET, DOUGLAS, IM1 1EE,  ISLEOF MAN   259 NGT HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   260 NGT INTELLECTUAL PROPERTY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   261 NGT LUXEMBOURG ONE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   262 NGT LUXEMBOURG TWO LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   263 NGT METERING LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   264 NGT ONE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   265 NGT ONSTREAM LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   266 NGT TELECOM NO.1 LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   267 NGT TELECOM NO.2 LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   268 NGT THREE  1-3 STRAND, LONDON, WC2N 5EH   269 NGT TWO LIMITED  1-3 STRAND, LONDON, WC2N 5EH   270 NGT UK HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   271 NGTM HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   272 NIAGARA MOHAWK ENERGY, INC.  507 PLUM STREET, SYRACUSE NEW YORK, UNITED STATES   273 NIAGARA MOHAWK HOLDINGS, INC.  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   274 NIAGARA MOHAWK POWER CORPORATION  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES
 

 
   275 NM PROPERTIES, INC.  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   276 NM URANIUM, INC.  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK, 13202, UNITED STATES   277 NT LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   278 ON STREAM ASSET MANAGEMENT SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   279 ON STREAM DATA MANAGEMENT LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   280 ON STREAM DATA PROVISION LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   281 ON STREAM METER OPERATIONS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   282 ON STREAM METER READING SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   283 ON STREAM METERING LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   284 ON STREAM SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   285 ON STREAM SOLUTIONS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   286 ON STREAM UTILITIES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   287 ON STREAM.COM LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   288 ONSTREAM METERING SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   289 OPINAC ENERGY CORPORATION  BENNETT JONES LLP, ONE FIRST CANADIAN PLACE, SUITE 3400, P.O. BOX  130,TORONTON ON M5X 1A4, CANADA   290 OPINAC NORTH AMERICA, INC.  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   291 OPROPCO, INC  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   292 PORT GREENWICH LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   293 PORT OF ISLANDS NORTH LLC  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   294 POWERCOM LIMITED  1-3 STRAND, LONDON, WC2N 5EH
 

 
   295 RISX ENVIRONMENTAL MANAGEMENT LIMITED  6 WEST CRAIBSTONE STREET, ABERDEEN, ABERDEENSHIRE, AB11 6DL   296 RISX LIMITED  6 WEST CRAIBSTONE STREET, ABERDEEN, ABERDEENSHIRE, AB11 6DL   297 RIVERVIEW, INC  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   298 SALMON SHORES PARTNERSHIP  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   299 SECONDSITE ESTATES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   300 SECONDSITE HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   301 SECONDSITE LAND LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   302 SECONDSITE PORTFOLIO SOLUTIONS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   303 SECONDSITE PROPERTY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   304 SOFRER SA  1 PLACE DE LA BOULE, 92024 NANTERRE, FRANCE   305 SSE TRANSCO LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   306 SST GMBH  C/O PAUL THOMAS, ERNSBERGER, STRABE 5A, 81241 MUNICH, GERMANY   307 SST TOWERS COMMUNICATIONS SAS  4 RUE MARIVAUX, 75002 PARIS, FRANCE   308 STARGAS NOMINEES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   309 STC INTERNATIONAL HOLDINGS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   310 STONER ASSOCIATES EUROPE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   311 SUPERGRID ENERGY TRANSMISSION LIMITED  1-3 STRAND, LONDON, WC2N 5EH   312 SUPERGRID LIMITED  1-3 STRAND, LONDON, WC2N 5EH   313 TELDATA INTERNATIONAL LIMITED  1-3 STRAND, LONDON, WC2N 5EH   314 TELDATA SERVICES LIMITED  1-3 STRAND, LONDON, WC2N 5EH
 

 
   315 TELDATA SOLUTIONS LIMITED  1-3 STRAND, LONDON, WC2N 5EH   316 TELECOM ELECTRIC LIMITED  1-3 STRAND, LONDON, WC2N 5EH   317 TELECOM INTERNATIONAL HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   318 TELINK LIMITED  1-3 STRAND, LONDON, WC2N 5EH   319 TERRACOM DESIGN & DEVELOPMENT LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   320 TERRACOM ESTATES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   321 THE ELECTRICITY TRANSMISSION COMPANY LIMITED  1-3 STRAND, LONDON, WC2N 5EH   322 THE NARRAGANSETT ELECTRIC COMPANY  280 MELROSE STREET, PROVIDENCE, RHODE ISLAND, 02907, USA   323 THE NATIONAL GRID GROUP QUEST TRUSTEE COMPANY LIMITED  1-3 STRAND, LONDON, WC2N 5EH   324 THE NATIONAL GRID INVESTMENTS COMPANY  1-3 STRAND, LONDON, WC2N 5EH   325 TRANSCO (EMPLOYERS) LTD  1 - 3 STRAND, LONDON, WC2N 5EH   326 TRANSCO ASSET MAINTENANCE (SCOTLAND) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   327 TRANSCO ASSET MAINTENANCE (WALES) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   328 TRANSCO ASSET MAINTENANCE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   329 TRANSCO ASSET MANAGEMENT (SCOTLAND) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   330 TRANSCO ASSET MANAGEMENT (WALES) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   331 TRANSCO ASSET MANAGEMENT LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   332 TRANSCO CONNECTIONS (SCOTLAND) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   333 TRANSCO CONNECTIONS (WALES) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   334 TRANSCO CONNECTIONS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH
 

 
   335 TRANSCO EMERGENCY SERVICES (SCOTLAND) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   336 TRANSCO EMERGENCY SERVICES (WALES) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   337 TRANSCO EMERGENCY SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   338 TRANSCO HOLDINGS (EMPLOYERS) LTD  1 - 3 STRAND, LONDON, WC2N 5EH   339 TRANSCO LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   340 TRANSCO LNG STORAGE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   341 TRANSCO METERING LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   342 TRANSCO METERING SERVICES (SCOTLAND) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   343 TRANSCO PIPELINE CONSTRUCTORS (SCOTLAND) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   344 TRANSCO PIPELINE CONSTRUCTORS (WALES) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   345 TRANSCO PIPELINE CONSTRUCTORS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   346 TRANSCO PIPELINES (SCOTLAND) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   347 TRANSCO PIPELINES (WALES) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   348 TRANSCO PIPELINES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   349 TRANSCO TELECOMMUNICATIONS ASSET DEVELOPMENT COMPANY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   350 TRANSCO TRANSPORTATION COMPANY LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   351 TRANSGRID LIMITED  1-3 STRAND, LONDON, WC2N 5EH   352 TRISCAPE PLANNING LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   353 UPPER HUDSON DEVELOPMENT INC  300 ERIE BOULEVARD WEST, SYRACUSE, NEW YORK 13202, UNITED STATES   354 UTILITY METERING SERVICES LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH
 

 
   355 VESAS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   356 WAYFINDER GROUP, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   357 XOSERVE (UK) LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   358 XOSERVE HOLDINGS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   359 BRITNED DEVELOPMENT LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   360 COGSYS LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH   361 HOLDCO PARTICIPACOES LTDA  PRAIA DE BOTAFOGO, NO 300-50 ANDAR, SALA 1301 (PARTE), RIO DE  JANEIRO, RJ, BRAZIL   362 INTELIG TELECOMUNICACOES LTDA  PRAIA DE BOTAFOGO, NO 370, BOTAFOGO, RIO DE JANEIRO, BRAZIL   363 JOINT RADIO COMPANY LIMITED  30 MILLBANK, LONDON, SW1P 4RD   364 JVCO PARTICIPACOES LTDA  PRAIA DE BOTAFOGO, NO 300-50 ANDAR, SALA 1301 (PARTE), RIO DE  JANEIRO, RJ, BRAZIL   365 NATIONAL GRID MIDDLE EAST FZCO  DUBAI AIRPORT, FREE ZONE AUTHORITY, DUBAI, UNITED ARAB EMIRATES   366 NEW ENGLAND HYDRO-TRANSMISSION CORPORATION  9 LOWELL ROAD, SALEM, NEW HAMPSHIRE 03079, USA   367 NEW ENGLAND HYDRO-TRANSMISSION ELECTRIC COMPANY, INC.  25 RESEARCH DRIVE, WESTBOROUGH MA 01582, UNITED STATES   368 NG LUXEMBOURG SA  2 RUE J HACKIN, L - 1746 LUXEMBOURG, LUXEMBOURG   369 RIVERVIEW GALUSHA LLC  426 DIX AVENUE, QUEENSBURY, NEW YORK 12804, UNITED STATES   370 SECOND STREET ASSOCIATES LLC  219 BURNET AVENUE, SYRACUSE, NEW YORK 13203, UNITED STATES   371 XOSERVE LIMITED  1 - 3 STRAND, LONDON, WC2N 5EH