| Business | Phone |
| Bec Labs Inc 705 Front St, Toledo 43605 | (419) 693-5307 |
| Biocheck Laboratories 1011 Garden Lake Pkwy, Toledo 43614 | (419) 385-9585 |
| Toledo Forest Products Lab Inc 6540 W Central Ave # J, Toledo 43617 | (419) 841-7663 |
| Sgs Minerals Svc 1 Presque Isle, Toledo 43605 | (419) 698-8049 |