Not sure whether any of this will be of use to anyone.
Art glass and higher end household glass:Krosno - needs no intro
http://www.krosno.com.pl/en/Fistek Glass - some bowls on multiple freeform stems a bit like Jozefina
http://www.fistekglass.com.pl/indexa.htmSabina - weights, sculpture by Rafal Rysz and Henryk Rysz
http://www.sabinaglass.com.pl/indexen.htmlWrzesniak Glassworks - handblown vases in various colours
http://www.glassworks.pl/indexen.php?action=homeenJozefina - very successful company, decorative homewares.
http://www.jozefina.pl/Justyna - large catalogue, bold colours and some with a crackle effect
http://www.huta-justyna.com.pl/html/indexen.phpMarta 2 - homewares, glasses, vases, florists' vases
http://www.marta2.pl/en/index.htmlMakora - another huge company, similar style to Jozefina
http://www.makora.com Cut Crystal:Irena - very nice crystal and soda glass
http://www.huta-irena.com.pl/english/index.htmlVioletta - designer cut glass
http://www.violetta.com.pl/indexe.htmlZawiercie - High quality cut crystal, nice online catalogue
http://www.hsg.pl/en/index.php?id=10Lower end and plainer household glass:Stölzle-Oberglas - Two companies still around, now joined and with a branch in Poland! Plain clear pressed glass vases, glasses and decanters, and perfume bottles.
http://www.stoelzle.pl/Berta Glassworks - clear glass glasses and vases
http://www.berta.net.pl/start.php?ID=firma&L=usGracja - budget clear glass homewares, spray colour
http://www.gracja.com.pl/english/oferta.htmKama - plainish vases and glasses, some wrythern
http://www.huta-irena.com.pl/english/index.htmlRozalia - clear glass homewares
http://rozalia.com.pl/products (includes fine handkerchief-style vases)
Gloss - small firm with a hand blown and machine line.
http://www.huta.gloss.pl/news_view.php?tpl=281&nid=48710Slawa - lanterns and jars
http://www.slawa.com.pl/Crystallite - Pressed glass tableware including those all important herring dishes
http://www.crystallite.com.pl/page.htmBottles/bottle decorationEuverlux - alcohol and beer bottle decoration
http://www.euroverlux.com.pl/english/index3.htmlChristmas DecorationsNorthstar - glass Christmas decorations, balls and figures
http://www.northstar.com.pl/en/index.phpPolskie Szklo - Christmas decorations
http://www.polskieszklo.pl/Robo - Christmas decorations
http://robo.com.pl/info_pages.php?pages_id=13&language=enSilverado - Christmas decorations
http://www.silverado.com.pl/site.php?lang=enSzklo Dekor - Christmas decorations and lamps. (You might want to turn off the music).
http://www.szklo-dekor.com/index2.htmlDagmara - Glass Christmas decorations. (Warning, flash heavy site with piano music)
http://www.dagmara.pl/en/index.htmlGlaspol - Glass Christmas decorations
http://www.glaspol.com.pl/index.php?lang1=enZwoch - Xmas dekkas
http://www.zwoch.com.pl/English/english.htmLab glassSow-Kor - mainly laboratory glass, some decorative
http://www.sowkor.republika.pl/