HEPHAESTUS INDUSTRIES:
Hephaestus Industries is the largest supplier of arms, ammunition, and small millitary vehicles in Sol space. Hephaestus products have a reputation for reliability, and the corporation itself has a noted tendency to stay removed from corporate politics. They enforce their neutrality with the help of a fairly large asset-protection contingent which prevents any contracting polities from using their own materiel against them. SolGov itself is one of Hephastus’ largest bulk contractors owing to the above factors.

VEY MEDICAL:
Vey-Med is one of the newer TSCs on the block and is notable for being largely owned and opperated by Skrell. Despite the suspicion and prejudice leveled at them for their alien origin, Vey-Med has obtained market dominance in the sale of medical equipment-- from surgical tools to large medical devices to the Oddyseus trauma response mecha and everything in between. Their equipment tends to be top-of-the-line, most obviously shown by their incredibly human-like FBP designs. Vey’s rise to stardom came from their introduction of ressurective cloning, although in recent years they’ve been forced to diversify as their patents expired and NanoTrasen-made medications became essential to modern cloning.

ZENG-HU PHARMACEUTICALS:
Zeng-Hu is an old TSC, based in the Sol system. Until the discovery of Phoron, Zeng-Hu maintained a stranglehold on the market for medications, and many household names are patentted by Zeng-Hu-- Bicaridyne, Dylovene, Tricordrizine, and Dexalin all came from a Zeng-Hu medical laboratory. Zeng-Hu’s fortunes have been in decline as Nanotrasen’s near monopoly on phoron research cuts into their R&D and Vey-Med’s superior medical equipment effectively decimated their own equipment interests. The three-way rivalry between these companies for dominance in the medical field is well-known and a matter of constant economic speculation.

WARD-TAKAHASHI GENERAL MANUFACTURING CONGLOMERATE:
Ward-Takahashi focuses on the sale of small consumer electronics, with its computers, communicators, and even mid-class automobiles a fixture of many households. Less famously, Ward-Takahashi also supplies most of the AI cores on which vital control systems are mounted, and it is this branch of their industry that has led to their tertiary interest in the development and sale of high-grade AI systems. Ward-Takahashi’s economies of scale frequently steal market share from Nanotrasen’s high-price products, leading to a bitter rivalry in the consumer electronics market.

BISHOP CYBERNETICS:
Bishop’s focus is on high-class, stylish cybernetics. A favorite among transhumanists (and a bête noire for bioconservatives), Bishop manufactures not only prostheses but also brain augmentation, synthetic organ replacements, and odds and ends like implanted wrist-watches. Their business model tends towards smaller, boutique operations, giving it a reputation for high price and luxury, with Bishop cyberware often rivalling Vey-Med’s for cost. Bishop’s reputation for catering towards the interests of human augmentation enthusiasts instead of positronics have earned it ire from the Positronic Rights Group and puts it in ideological (but not economic) comptetition with Morpheus Cyberkinetics.

MORPHEUS CYBERKINETICS:
The only large corporation run by positronic intelligences, Morpheus caters almost exclusively to their sensibilities and needs. A product of the synthetic colony of Shelf, Morpheus eschews traditional advertising to keep their prices low and relied on word of mouth among positronics to reach their current economic dominance. Morpheus in exchange lobbies heavily for positronic rights, sponsors positronics through their Jans-Fhriede test, and tends to other positronic concerns to earn them the good-will of the positronics, and the ire of those who wish to exploit them.

XION MANUFACTURING GROUP:
Xion, quietly, controls most of the market for industrial equipment. Their portfolio includes mining exosuits, factory equipment, rugged positronic chassis, and other pieces of equipment vital to the function of the economy.