iS Prime’s Founders Return with a New Liquidity Business for Brokers
Three former iS Prime executives have launched JT Prime, a prime-of-prime liquidity provider for brokers and funds, with plans to expand into digital assets.
Raj Sitlani and Jonathan Brewer, who co-founded iS Prime in 2014, have launched JT Prime with Jeff Wilkins, the former head of iS Prime's risk analytics arm. The new venture serves as the institutional arm of retail firm JT Markets, which operates on MetaTrader 5 and is licensed by the Seychelles Financial Services Authority.
JT Prime offers aggregated Tier 1 bank and non-bank liquidity in FX, precious metals and index CFDs, with FIX API connectivity. The company targets brokers, funds, family offices and proprietary trading firms across North America, Europe and Asia.
The Firm They Left Behind
Sitlani and Brewer departed iS Prime in January 2023 after eight years with the company, which was originally founded with systematic hedge fund manager iSAM. Both had previously held senior electronic FX roles at Goldman Sachs. Wilkins remained at iSAM until this year, having served as managing director of iS Risk Analytics.
Since the founders' departure, iSAM Securities (UK), as iS Prime is now called, has experienced significant financial decline. The company reported turnover of £19.56 million for the year to June 2025, compared to £35 million in the year to June 2022. Pre-tax profit fell to £4.5 million from £16.2 million over the same period.
License Pending, Digital Assets Next
While currently operating under JT Markets' Seychelles FSA license, JT Prime has applied for a license in an unnamed major Western market. The company plans to expand its product offerings to include digital assets alongside its existing FX and commodities range, and already accepts cryptocurrency payments.
Jonathan Brewer emphasized that JT Prime will operate "a clean, agency-style execution model that aligns our interests with theirs" and will be selective about client acquisition. The firm also provides institutional clients with a white-label education platform.
The launch comes as iSAM continues developing its broker software, having recently added four features to its Radar risk platform, including alerts for traders hedging across multiple brokers.
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