Bedrijven voor de plaats: WINSUM
| BC BV | Kleasterdyk 45/A | 8831 XA WINSUM FR |
| Montagebedrijf W.J. Kramer | Pier Winsemiusleane 6 | 8831 XL WINSUM FR |
| Stichting NIJ Dok | De Nije Herne 1 | 8831 ZS WINSUM FR |
| Fa. H.W. Koning VOF | Kleasterdyk 48 | 8831 XC WINSUM FR |
| Vadeko Houtconstructies BV | St. Michaelsberch 1 | 8831 ZM WINSUM FR |
| J. Aikema Beheer BV | Kleasterdyk 56 | 8831 XC WINSUM FR |
| MKB Advies Libbenga BV | It Heechhout 10 | 8831 ZR WINSUM FR |
| Strange Sound | Fikarusleane 15 | 8831 XD WINSUM FR |
| Jacqueline Koelewijn | De Nije Herne 12 | 8831 ZS WINSUM FR |
| Bruinsma's Bakkerij | Skans 2 | 8831 XS WINSUM FR |
| Frankena en Geuker BV | Kleasterdyk 49 | 8831 XA WINSUM FR |
| J.L. Beheer BV | It Heechhout 10 | 8831 ZR WINSUM FR |
| Triple E. Meubilair BV | Kleasterdyk 50 | 8831 XC WINSUM FR |
| Fa. J. Koning | Hegeterp 16 | 8831 XT WINSUM FR |
| Friamco Montage Techniek BV | Kleasterdyk 56 | 8831 XC WINSUM FR |
| Gebroeders Greidanus | Kleasterdyk 40-44 | 8831 XC WINSUM FR |
| B. Strikwerda | Spannumerdijk 8 | 8831 XX WINSUM FR |
| TC Plus | Tsjerkebuorren 3 | 8831 XH WINSUM FR |
| Bakker Metaalbewerking BV | Kleasterdyk 45/A | 8831 XA WINSUM FR |
| Gerlsma & Van Dorp | Froonackerdyk 1 | 8831 ZH WINSUM FR |
| Miedema Landbouwwerktuigenfabriek BV | Kleasterdyk 43 | 8831 XA WINSUM FR |
| Marten Tinga Beheer BV | Kleasterdyk 50 | 8831 XC WINSUM FR |
| Openbare Basisschool De Mied Skoalle | Molepaed 21 | 8831 XJ WINSUM FR |
| Miedema Holding Winsum BV | Kleasterdyk 43 | 8831 XA WINSUM FR |
| Bakker Winsum Heftrucks | Boskdyk 4 | 8831 XD WINSUM FR |
| Miedema BV | Kleasterdyk 43 | 8831 XA WINSUM FR |
| Theunis & Lize BV | Kleasterdyk 45/A | 8831 XA WINSUM FR |
| De Gauwe Krakeling | Lytse Streek 6 | 8831 XW WINSUM FR |
| Bouwbedrijf Van der Sloot | Kleasterdyk 24 | 8831 XC WINSUM FR |
| Loonbedrijf/Grondverzet Frankena | Kleasterdyk 49 | 8831 XA WINSUM FR |
| Wildkamp BV | St. Michaelsberch 2 | 8831 ZM WINSUM FR |
| Het Reiki Praktijkie Healinghands- Friesland | Pier Winsemiusleane 1 | 8831 XK WINSUM FR |
| Veehouderij Van Mourik | Koaidyk 5 | 8831 ZK WINSUM FR |
| Basisschool De Stapstien | Mied'igge 42 | 8831 XP WINSUM FR |
| Cees Kaspersma Foto- en Illustratiestudio | Skyldumerreed 1 | 8831 KR WINSUM FR |
| Syb van Dijk Holding BV | Hegeterp 18 | 8831 XT WINSUM FR |
| VOF Van der Velde Mode en Slapen | Tsjerkebuorren 16 | 8831 XH WINSUM FR |
| Friamco BV | Kleasterdyk 56 | 8831 XC WINSUM FR |
| VOF Tolsma | Meamerterdyk 5 | 8831 XZ WINSUM FR |
| THS (Technische Handelsonderneming Scholte) | Hegeterp 24/A | 8831 XT WINSUM FR |
| Auke Hoekstra Adviesbureau | It Heechhout 1 | 8831 ZR WINSUM FR |
| Cadick Holding BV | Lytse Streek 6 | 8831 XW WINSUM FR |
| H.J. Beets | Weakens 2 | 8831 KP WINSUM FR |
| Loonbedrijf Machineverhuur Frankena BV | Kleasterdyk 49 | 8831 XA WINSUM FR |
| Jan Plantinga Franeker Beheer BV | Tsjerkebuorren 4 | 8831 XH WINSUM FR |
| Jaap Haarsma Holding BV | Sint Japiksdyk 4 | 8831 ZN WINSUM FR |
| Friamco Beheer BV | Kleasterdyk 56 | 8831 XC WINSUM FR |
| Vervoer bij Uitstek | St. Michaelsberch 6 | 8831 ZM WINSUM FR |
| VOF ACR | Kleasterdyk 46 | 8831 XC WINSUM FR |
| Stichting Bdr | Kleasterdyk 40-44 | 8831 XC WINSUM FR |
| Wmmedia | Sint Japiksdyk 17 | 8831 ZN WINSUM FR |
| Kapsalon Sjoeke | Kleasterdyk 16 | 8831 XB WINSUM FR |
| Kowins Beheer BV | St. Michaelsberch 1 | 8831 ZM WINSUM FR |
| Anew Perfect Line | De Terp 18 | 8831 ZE WINSUM FR |
| Netty Gabel Tekst | Sulverstrjitte 5 | 8831 ZL WINSUM FR |
| Theunis & Lize Holding BV | Kleasterdyk 45/A | 8831 XA WINSUM FR |
| BMVA | De Haven 2 | 8831 ZP WINSUM FR |
| De Nije Herne BV | De Nije Herne 1 | 8831 ZS WINSUM FR |
| Greidanus Containerreiniging BV | Kleasterdyk 40 | 8831 XC WINSUM FR |
| Tinga Research & Development BV | Kleasterdyk 50 | 8831 XC WINSUM FR |
| Autohuis Winsum | St. Michaelsberch 9 | 8831 ZM WINSUM FR |
| P. en W. Car Repair and Paint Centre | St. Michaelsberch 4 | 8831 ZM WINSUM FR |
| Jan Plantinga BV | Tsjerkebuorren 4 | 8831 XH WINSUM FR |
| Jolanda's Haarmode | De Haven 7 | 8831 ZP WINSUM FR |
| Vadeko Montage BV | St. Michaelsberch 1 | 8831 ZM WINSUM FR |
| C. Hibma Holding BV | Kleasterdyk 56 | 8831 XC WINSUM FR |
| Jasper Polish & Metaal Service | De Omrin 19/A | 8831 ZC WINSUM FR |
| Zorgmaatwerk BV | Molepaed 10 | 8831 XJ WINSUM FR |
| Tinga Deuren en Ramen BV | Kleasterdyk 47 | 8831 XA WINSUM FR |
| VRT-Holland | De Nije Herne 16 | 8831 ZS WINSUM FR |
| Joh. Frankena Beheer BV | Kleasterdyk 49 | 8831 XA WINSUM FR |
| T.G.M. Gras Holding BV | Kleasterdyk 56 | 8831 XC WINSUM FR |
| Advies en Management Friesland BV | De Omrin 38 | 8831 ZD WINSUM FR |
| Loonbedrijf A.S. Miedema | Froonackerdyk 2 | 8831 ZH WINSUM FR |
| Onno van der Molen Beheer BV | De Terp 14 | 8831 ZE WINSUM FR |