The International Society for Trenchless Technology

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NTT Infranet

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Country Japan (JSTT)
Address NTTインフラネット㈱ 中央区東日本橋一丁目8-1 ネクストサイト東日本橋ビル 3F
Website www.nttinf.co.jp/

NUC Kouhou Kyoukai

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Country Japan (JSTT)
Address NUC工法協会 枚方市池之宮2-3-6 南野建設㈱内
Website www.nanno.co.jp/nuc/

NuFlow Technologies 2000 Pty Ltd.(

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Country Australia (ASTT)
Address PO Box 584 ASHMORE CITY Queensland
Website www.nuflowtech.com.au

Nyeleti Consulting (Pty) Ltd

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Country South Africa (SASTT)
Address P O Box 1965 ALBERTON

O Liner Technology Pte Ltd

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Country Singapore (SGSTT)
Address Blk 52 Ubi Ave 3, #02-27 Frontier S(408867) Singapore

OCEISA Obras civiles e Inmobiliarias S.A.

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Country Colombia (CISTT)
Address Avenida carrera 19 No. 95-55 Piso 9 Bogota D.C.
Website www.oceisa.com

Octopus Electronics

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Country South Africa (SASTT)
Address PO Box 285 PLUMSTEAD

OHL ZS, a.s., zavod PS

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Country Czech Republic (CZSTT)
Address Buresova 938/17 BRNO-stred
Website www.ohlzs.cz

OHMOTO GUMI CO.,LTD.

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Country Japan (JSTT)
Address ㈱大本組        港区青山5-9-15 青山OHMOTOビル
Website www.ohmoto.co.jp/

OKMOLE ASSOCIATION

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Country Japan (JSTT)
Address オーケーモール協会      品川区東品川4-4-7 東邦地下工機㈱内
Website www.ok-mole.gr.jp

Okumura Corporation

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Country Japan (JSTT)
Address ㈱奥村組 港区芝5-6-1
Website www.okumuragumi.co.jp/

OKUMURA MACHINERY CORPORATION

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Country Japan (JSTT)
Address 奥村機械製作(株)       大田区大森北1-5-1 大森駅東口ビル4F
Website www.okumuragumi.co.jp/kikai/

Omni Relining

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Country Nederland (NSTT)
Address Distriboulevard Moerdijk
Website www.mjoomen.nl

OnSite Central Ltd

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Country United Kingdom (UKSTT)
Address Unit 14 W & G Industrial Estate WANTAGE Oxfordshire

Opere Geotecniche Snc

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Country Italy (IATT)
Address Via San Gemiliano Monastir (CA)

Opus International Consultants Ltd

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Country New Zealand (ASTT)
Address 100 Beaumont St WESTHAVEN Auckland
Website www.opus.co.nz

ORGANIZACION DE CONSTRUCCIONES PAZOS, S.A. DE C.V.

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Country Mexico (ISTT)
Address Emilio Leyzegui 19 segundo piso Xalapa Veracruz,
Website www.ocp98.com

ORIGINAL ENGINEERING CONSULTANTS CO., LTD.

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Country Japan (JSTT)
Address オリジナル設計㈱ 渋谷区元代々木町30-13 グラスシティ元代々木
Website www.oec-solution.co.jp/

ORSCO was (SA LEAK)

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Country South Africa (SASTT)
Address Suite 639 BRENTWOOD PARK, Benoni

Osaka Bousui Construction Co.,Ltd.

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Country Japan (JSTT)
Address ㈱大阪防水建設社     大阪市天王寺区餌差町7-6
Website www.obcc.co.jp

Osborn Engineered Products (Pty) Ltd

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Country South Africa (SASTT)
Address P O Box 8182 ELANDSFONTEIN

Oulun vesi

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Country Finland (FISTT)
Address PL 35 Oulun kaupunki
Website www.oulunvesi.fi/

Oy Lining Ab

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Country Finland (FISTT)
Address Tiilenlyöjänkuja 9 B Vantaa
Website www.lining.fi

OYO Corporation.

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Country Japan (JSTT)
Address 応用地質(株) さいたま市北区宮原町1-66-2
Website www.oyo.co.jp/

Paltem Gijutsu Kyoukai

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Country Japan (JSTT)
Address パルテム技術協会 千代田区岩本町2-6-9 佐藤産業ビル4F
Website www.paltem.jp/

PARENGE

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Country France (FSTT)
Address 7 avenue Léon Harmel ANTONY Cedex

PARQUE DE MAQUINARIA SAS

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Country Colombia (CISTT)
Address Carrera 22 No. 5A-00 Bogota D.C. Bogota D.C.
Website www.parquedemaquinaria.com

Parsons Brinckerhoff

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Country Singapore (SGSTT)
Address 300 Beach Road #05-00, The Concourse, Singapore 199555 Singapore

PATO srl

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Country Italy (IATT)
Address Via Donizzetti 9 Occhibello (RO)

Pavoneggi Srl

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Country Italy (JSTT)
Address Via san tommaso d'aquino 18a Cagliari IT
Website www.pavoneggi.com

Pavoneggi srl

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Country United States (ASTT)
Address Via San Tommaso 18 Pirri - Cagliari Sardinia
Website www.pavoneggi.com

PBF Drainage Services

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Country United Kingdom (UKSTT)
Address 14a Stenson Street Northampton Northants
Website www.pbfdrainage.co.uk

PERFOTECNICA

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Country Colombia (CISTT)
Address Cra 71C # 63B-19 Bogota D.C. Bogota D.C.
Website www.perfotecnica.com.co

Pervomayskiy zavod ZHBI

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Country Russian Federation (RSTT)
Address Komsomolskoe highway, 68 Novomoscovsk, Tylskiy region
Website www.pgbinmsk.ru

Pezzimenti Laserbore Pty Ltd

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Country Australia (ASTT)
Address 85 Heatherdale Road RINGWOOD Victoria

Pezzimenti Trenchless Pty Ltd

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Country Australia (ASTT)
Address PO Box 2500 NORTH RINGWOOD VIC

Pezzimenti Tunnelbore Pty Ltd

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Country Australia (ASTT)
Address po box 670 RINGWOOD Victoria

PFTT - POLISH FOUNDATION FOR TRENCHLESS TECHNOLOGY

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Country Poland (PFTT)
Address UL. WARKOCZ 14, KIELCE
Website www.pftt.pl

Picote Oy Ltd

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Country Finland (FISTT)
Address Urakoitsijantie 8 Porvoo
Website www.picote.fi

PIHA Pty Ltd

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Country Australia (ASTT)
Address 1 Sleat Road APPLECROSS WA
Website www.piha.com.au

Pipe Jack Gauteng (Pty) Ltd

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Country South Africa (SASTT)
Address P O Box 13554, WITFIELD

Pipe Rehabilitation Pte Ltd

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Country Singapore (SGSTT)
Address 3014 Ubi Road 1 #01-292 Singapore 408702 Singapore

Pipe Works

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Country New Zealand (ASTT)
Address PO Box 62 077 AUCKLAND

Pipejacking Branch of Fujian Dongchen Geotechnical Foundation Engineering Co

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Country China (CSTT)
Address Xianyue Rd. 239 Room 1208 (Zhongjian Building) Xiamen City Fujian Province

Pipelife Nederland BV

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Country Nederland (NSTT)
Address Postbus Enkhuizen
Website www.pipelife.nl

Pipeline Drillers Group

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Country Australia (ASTT)
Address 324 New Cleveland Road Tingalpa Queensland
Website www.pdgroup.com.au

Pipeline Services Pte Ltd

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Country Singapore (SGSTT)
Address 7 Neythal Road Singapore 628574 Singapore

Pipes HOBAS

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Country Russian Federation (RSTT)
Address Line 19 V.O, h.34, korp.1 Saint-Petersburg
Website www.hobas.com

Planned Maintenance (Pennine) Ltd

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Country United Kingdom (UKSTT)
Address Bentley Wood Way Lancashire Lancashire

PMPS Liner Technology (S) Pte Ltd

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Country Singapore (SGSTT)
Address 48 Toh Guan Road East #06-100 Enterprise Hub S( 608586) Singapore

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