Blue Salt Brotherhood

Commerce Faction (Gathering, Crafting, Trading). Has its headquarter in Solisa where the Blue Salt Brotherhood Title quest chain starts at level 30:

Halcyona Quests
Rewards: 8x8 scarecrow garden, mushroom x100, lumber x1, tax certificates x 15
 * Missing Messenger
 * Judar's Betrayal
 * Infiltrating the Brotherhood
 * The Merchant's Way
 * Rice Seed Delivery
 * Guarding the Fields
 * Wheat for the Brewery
 * Processing Ingredients
 * Beer for Sun's End
 * Tonics and Tinctures
 * Fearless Flowers
 * Halcyona Pest Control
 * Earning Your Garden

Hellswamp Quests

 * Sent to the Swamp
 * Anarchi's Alchemist
 * A Prickly Cure
 * Thistle Do The Trick
 * Crafting Potions
 * Urgent Care
 * Back to the Grindstone
 * Crafting Hushed Star
 * Helping Haven
 * A Camp in Need
 * Making Mana Potions
 * The Trieste Alchemist
 * Crafting Afternoon Sun
 * A Little Improv
 * Sanddeep Lessons

Sanddeep Quests

 * Crafting Midsummer Meteor
 * Learning About Vocation Badges
 * Impressing the Patrons
 * Building Business
 * Crafting Desert Fire
 * High Quality Merchandise
 * A Promising Future
 * The Eastern Branch

Rookborne Quests

 * Crafting Solar Glow
 * A Fine Pairing
 * The Eastern Curriculum
 * The Missing Screw
 * The Proper Tools (may require 100 iron ingots)
 * The Windscour Wainwright

Windscour Quests

 * Greasing the Wheels
 * The Proper Polish
 * Put These Skills to Use
 * Hota's Strong Wheel
 * A Guild Reward

Perinoor Quests
Reward: farm cart, cottage design and building materials
 * Try Out Your New Ride (may require 4 cart wheels, cart engine, cart shaft, 1000 labor)
 * The Local Business
 * Risk and Reward
 * Sleep On It (may require 2 gilda star)
 * Creature Comforts (may require 1 basic furniture collection design)
 * Wool Need Some Fabric

Hasla Quests

 * Lumber Exchange (requires you to buy 5 cedar saplings)
 * A Bed of Your Own
 * A Badge of Honor
 * A Missing Apprentice

Reward: Hardwood bed, alchemy table, crest wall decor

Karkasse Quests
Reward: Farm Wagon Rewards: Blue Salt Brotherhood Title, Set of dawnsdrop gear, book Judar's Letter, Talisman Blue Salt Manual
 * Judar's Confession
 * A Valuable Hostage
 * Lavis in the Air
 * Recovering the Chalice
 * A Final Test (may require a farm wagon design)
 * Testing the Waters
 * Calling the Thunder
 * Farm Cart Upgrade (may require 4 strong wheels and 1000 labor)
 * Returning Elistine's Memory
 * Return to Solisa