- All Fountain Pen
- Fine Writing International
- Santini Italia
- Xzotic Wooden Pens
- Diplomat
- Kakimori
- Lamy Safari X Pokémon
- Ancora 1919
- Cartier
- Delta
- Dunhill
- Bexley
- Aurora
- Conklin
- Conway Stewart
- Benu
- Cross
- Ferris Wheel Press
- Esterbrook
- Good Blue
- Kaweco (LOG IN FOR SPECIAL PRICE)
- Laban
- Lamy
- Lamy Special Color
- Leonardo Officina Italiana
- Maiora
- Marlen
- Montblanc
- Montegrappa
- Monteverde
- Namiki
- Nettuno 1911
- Onishi Seisakusho
- Online
- Noodler's
- Opus 88
- Parker
- Pelikan
- Penlux
- PG Select
- Pilot
- Pineider
- Platinum
- Platinum (Casual Pens)
- Porsche Design
- Sailor
- Scribo
- Sheaffer
- Stipula
- Taccia
- Tibaldi
- TWSBI
- Visconti
- Waterman
- All Fountain Pen Bottle Inks
- Ink color
- Kuretake
- Monarca
- Kaweco
- Troublemaker Inks
- Taccia
- 3 Oysters
- Aurora
- Colorverse
- Diamine
- Diamine Blue Edition
- D Atramentis
- J Herbin
- Kyoto Ink
- Krishna Inks
- KWZ
- Lamy
- Laban
- Montblanc
- Monteverde
- Montegrappa
- Noodler's
- Parker
- Pelikan
- Pilot
- Platinum
- Private Reserve
- Rohrer & Klingner
- Robert Oster
- Sailor
- Sailor Yurameku
- Sailor Manyo Inks
- Sailor Ink Studio 100 Colors
- Sheaffer
- Scribo
- TWSBI
- Vinta
- Visconti
- Waterman
- Fine Writing International
- Santini Italia
- Xzotic Wooden Pens
- Diplomat
- Kakimori
- Lamy Safari X Pokémon
- Ancora 1919
- Cartier
- Delta
- Dunhill
- Bexley
- Aurora
- Conklin
- Conway Stewart
- Benu
- Cross
- Ferris Wheel Press
- Esterbrook
- Good Blue
- Kaweco (LOG IN FOR SPECIAL PRICE)
- Laban
- Lamy
- Lamy Special Color
- Leonardo Officina Italiana
- Maiora
- Marlen
- Montblanc
- Montegrappa
- Monteverde
- Namiki
- Nettuno 1911
- Onishi Seisakusho
- Online
- Noodler's
- Opus 88
- Parker
- Pelikan
- Penlux
- PG Select
- Pilot
- Pineider
- Platinum
- Platinum (Casual Pens)
- Porsche Design
- Sailor
- Scribo
- Sheaffer
- Stipula
- Taccia
- Tibaldi
- TWSBI
- Visconti
- Waterman
- Ink color
- Kuretake
- Monarca
- Kaweco
- Troublemaker Inks
- Taccia
- 3 Oysters
- Aurora
- Colorverse
- Diamine
- Diamine Blue Edition
- D Atramentis
- J Herbin
- Kyoto Ink
- Krishna Inks
- KWZ
- Lamy
- Laban
- Montblanc
- Monteverde
- Montegrappa
- Noodler's
- Parker
- Pelikan
- Pilot
- Platinum
- Private Reserve
- Rohrer & Klingner
- Robert Oster
- Sailor
- Sailor Yurameku
- Sailor Manyo Inks
- Sailor Ink Studio 100 Colors
- Sheaffer
- Scribo
- TWSBI
- Vinta
- Visconti
- Waterman
Troublemaker Inks
Troublemaker Inks born in the Philippines and handmade with love. Offering an artisanal alternative to contemporary fountain pen inks. Everything from the mixing, bottling, and packaging is done by hand.