| # | Company (H...) | Contact Details |
| 1 | H.F.P ENGINEERING NIGERIA LTD. | | Address: | Plot PC 14, Ahmed Onibudo Street, Victoria Island, Lagos | | Phone: | 2614149, 4618560-4 Fax: 2615903 | | Email: | |
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| 2 | HADEMEC LTD. | | Address: | 10A, Tinubu Road, Palmgroove Estate, Ilupeju | | Phone: | 4933115, 4977795, 4977796 Fax: 5556314 | | Email: | |
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| 3 | HALLIBURTON ENERGY SERVICES NIGERIA LTD. | | Address: | 90, Ajose Adeogun Street, Victoria Island, Lagos | | Phone: | 2620765-8 Fax: 2620769 | | Email: | |
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| 4 | HEALTHCARE INTERNATIONAL | | Address: | 308A Muritala Muhammed Way, Yaba | | Phone: | 2643695, 4705701 Fax: 2666801 | | Email: | |
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| 5 | HEARTH & MANAGED CARE ASSOCIATION OF NIGERIA | | Address: | 314 Ikorodu Road, Anthony, Lagos | | Phone: | 08052564575 Fax: | | Email: | |
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| 6 | HEINRICH FRIEDRICH SCHROEDER W.A. LTD. | | Address: | Plot 3, Block D, Apapa-Oshodi Expressway, Amuwo-Odofin, Lagos | | Phone: | 801630-9 Fax: | | Email: | |
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| 7 | HELIX CONSULTS LTD. | | Address: | 9 Alawode Avenue, Opposite St. Louis Grammar School, Mokola, Ibadan, P.O. Box 29655, Secretariat Post Office, Ibadan, Oyo State | | Phone: | 08035304392 Fax: | | Email: | |
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| 8 | HENKEL CHEMICALS NIGERIA LTD. | | Address: | Plot 7, Block K, Isolo Expressway, Isolo | | Phone: | 520031 Fax: 4520024, 4522869, 4520015 | | Email: | |
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| 9 | HOESCH PIPES MILLS LTD. | | Address: | Henry Carr Street, Ikeja Industrial Estate, Ikeja | | Phone: | 4974221-5 Fax: 4937318 | | Email: | |
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| 10 | HOMAN INDUSTRIES LTD. | | Address: | Plot 15 & 16, Block XIII Industrial Estate, Ota, Ogun State | | Phone: | 039-722257-8 Fax: 039-722257 | | Email: | |
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| 11 | HONDA MANUFACTURING NIGERIA LTD. | | Address: | Km. 6, Otta-Idiroko Road, Otta Industrial Estate | | Phone: | 01/7614925, 08034324443, 07034080991 Fax: | | Email: | |
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| 12 | HONEYWELL FLOUR MILLS LTD. | | Address: | 2nd Gate By-Pass, Tin-Can Island, Apapa | | Phone: | 5453679-83 Fax: 5878308, 2616498 | | Email: | |
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| 13 | HONEYWELL SUPERFINE FOODS LTD. | | Address: | Plot Yabb Mobolaji Johnson Avenue, Alausa - Ikeja | | Phone: | 3453630, 3453671 Fax: 4963773 | | Email: | |
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| 14 | HORWATH DAFINONE | | Address: | CEDDI Towers, 16 Wharf Road, Apapa | | Phone: | 5451863-6 Fax: 5452384 | | Email: | |
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| 15 | HULL BLYTH NIGERIA LTD. | | Address: | 34, Wharf Road, Apapa | | Phone: | 5803140-2, 5803410-3 Fax: 5871526 | | Email: | |
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| 16 | HUMAN CAPITAL PROVIDERS ASSO. OF NIGERIA | | Address: | C/o NECA House, Plot A2, Hakeem Balogun Street, Alausa - Ikeja | | Phone: | 08025899122 Fax: | | Email: | |
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| 17 | HYGEIA HMO LTD. | | Address: | 13B Idejo Road, Victoria Island, Lagos | | Phone: | 4617075, 2711565 Fax: | | Email: | |
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