| Sundsvall Lokstallet AB | Sundsvall | 0 tkr |
| Sundsvalls-BLIXTEN AB | Alnö | 0 tkr |
| Sundsvalls Bokföringskonsulter AB | Sundsvall | 0 tkr |
| Sundsvalls Högtrycksteknik Holding AB | Kovland | 0 tkr |
| Sundsvalls Hudklinik AB | Sundsvall | 0 tkr |
| Sundsvalls Isoleringstjänst Aktiebolag SITAB | Sundsvall | 0 tkr |
| Sundsvalls MV Holding AB | Sundsvall | 0 tkr |
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| Sundsvalls Trävaru Aktiebolag | Sundsvall | 0 tkr |
| Sundsvalls Vandrarhem Holding AB | Sundsvall | 0 tkr |
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| Sundsvalls webmusikshop AB | Sundsvall | 0 tkr |
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| Sundsvall Wind Tech AB | Sundsvall | 0 tkr |
| SUNLA AB | Umeå | 0 tkr |
| Sunsta AB | Sundsvall | 0 tkr |
| Superelitserien Sverige AB | Timrå | 0 tkr |
| Susanne Johansson Holding AB | Bonässund | 0 tkr |
| Svanavik Invest AB | Bonässund | 0 tkr |
| Svardby Engineering Aktiebolag | Domsjö | 0 tkr |
| Svartnora Teknik Holding AB | Sandöverken | 0 tkr |
| Svea Fungi AB | Stockholm | 0 tkr |
| Svelander Innovations AB | Härnösand | 0 tkr |
| Svenkes Invest AB | Skorped | 0 tkr |
| Svenska Automatringen Aktiebolag | Örnsköldsvik | 0 tkr |
| Svenska Cellulosa Aktiebolaget SCA | Sundsvall | 0 tkr |
| Svenska Teknikspridnings Aktiebolaget | Sollefteå | 0 tkr |
| Svenska Vindbruksbyggarna AB | Älandsbro | 0 tkr |
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| Svetskonsult i Ö-vik AB | Domsjö | 0 tkr |
| SVF Sverige Holding AB | Kovland | 0 tkr |
| Svippo AB | Sandöverken | 0 tkr |
| Swärdsudd Konsult AB | Örnsköldsvik | 0 tkr |
| SWEAK Invest AB | Bonässund | 0 tkr |
| SWEDIEC GROUP AB | Härnösand | 0 tkr |
| Swedish Connection Group AB | Sundsvall | 0 tkr |
| Swedish Institute of Integrated Management (SÏM) AB | Sundsvall | 0 tkr |
| Swedish Renewables SPV 2 AB | Timrå | 0 tkr |
| Swedish Renewables SPV 3 AB | Malmö | 0 tkr |
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| Swedish Renewables SPV 5 AB | Timrå | 0 tkr |
| Swedplay AB | Timrå | 0 tkr |
| Sweetpea AB | Sundsvall | 0 tkr |
| Swellin Invest AB | Sundsvall | 0 tkr |
| Switsoft AB | Alnö | 0 tkr |
| Synetics Holding AB | Sundsvall | 0 tkr |
| Syscraft 1001 AB | Sundsvall | 0 tkr |
| Syscraft 1002 AB | Umeå | 0 tkr |