Rockwell OTC

The $100k+ Cryptocurrency Trading Service

Trade Now


Straightforward onboarding and personalized service 1 on every cryptocurrency trade2.



Same day onboarding, trade, and confirmation, typically within minutes 3.



State-of-the-art security – digital assets are stored and protected in our own off-site, off-line, Tier III data center4.

1As of 8-1-18, Rockwell Trades provides liquidity for the following traditional currencies and cryptocurrencies: USD, EUR, GBP, JPY, CAD, BTC, ETH, USDT, BCH, XRP, ZEC, XMR, LTC, BTG, EOS, NEO, ETC, XLM, ZRX, REP, ADA, QTM, OMG, DCR, BAT, ANT, DOGE, XTZ. All cryptocurrencies and fiat currencies (“Currencies”) are offered by Rockwell Trades in its full discretion and at any given time, Rockwell Trades may, without notice or the need to update this list, choose to trade or not trade in any of these Currencies for any reason.

2Although Rockwell Trades seeks to provide this level of service in every instance, there may be exceptions which result in varying levels of service depending upon, for example, certain levels of demand or unexpected or unforeseen circumstances.

3Although Rockwell Trades seeks to deliver this level of service in every instance, there may be unusual or unforeseen circumstances where certain transactions or market participants cannot receive same day onboarding or trading, or confirmation of trades within minutes.

4Our data center is comprised of high security caged data racks that are SOC I, SOC II, and SSAE 16 type II verified. All fiat currency is securely stored and protected by our custodial banks; all personal customer information is stored in a highly secure environment.

Learn More

Our cryptocurrency trading platform delivers when and how you want it, not how we want it:

  • No more frustrating hidden obstacles, faceless intermediaries, or long wait times
  • Straightforward onboarding
  • Real-time ordering, direct with a concierge trade specialist (via Skype chat)
  • Trade direct from our inventory, with no middleman
  • Complete a trade and receive a timely confirmation, usually within minutes
  • Personalized service every step of the way, so you’re never left hanging
  • Confirm your price in advance with a concierge trade specialist, who executes your trade
  • State-of-the art security: All customer data stored in our own off-site, off-line, Tier III data center (comprised of high-security caged data racks that are SOC I, SOC II, and SSAE 16 type II verified)

Click onboard for our streamlined trade application process.

About Rockwell OTC

Rockwell OTC is a concierge OTC cryptocurrency trading service offering executions for cryptocurrency transactions of $100,000 or more with no maximum limit. Rockwell Trades is an affiliate of Rockwell Capital, a family office committed to increasing adoption of cryptocurrency and blockchain technology, including by educating high net worth individuals and family offices about this transformative technology (Rockwell Capital Management, LLC is doing business as Rockwell Trades).

Brian Sewell

Brian Sewell


Brian developed a system for ACH electronic financial transactions as an executive for World Savings (a Fortune 500 Bank sold to Wells Fargo). He then became a financier, managing over $1.1 billion in assets. After investing in bitcoin in 2013, Brian worked as a full-time cryptocurrency trader and liquidity provider. In addition to establishing Rockwell Capital, a family office committed to educating other family offices and high net worth investors about cryptocurrency and blockchain technology, he founded Rockwell OTC, an OTC cryptocurrency trading service for transactions of $100,000 or more. He holds a BS in Business from Southern Utah University, a Data Science Certificate from Johns Hopkins University, and a Machine Learning Certificate from Stanford University.

Mark Kress

Mark Kress, CFA

Business Development Director

Mark leads relationship strategies that identify and educate institutional cryptocurrency market participants about Rockwell Trades. Prior to joining Rockwell, Mark was an independent consultant for seven years, working with both multi and single family offices on technology solutions to help manage their businesses. From 2001-2011, Mark was a Portfolio and Risk Manager for the global team at Guggenheim Investments, where he helped manage $1 billion in long/short, market neutral, and long-only strategies. Mr. Kress holds a BS in Managerial Economics from the University of California at Davis, an MBA from the University of California at Berkeley Haas School of Business, and is a Chartered Financial Analyst (CFA).

Tim Stone

Chief Marketing Officer

Tim plans and directs strategies cultivating appreciation for Rockwell's brand and services. He handles bran strategy, content development, sponsorships and advertising, and integrated communications. Tim's bylined articles on finance, business, and politics have appeared in The New York Times and The Wall Street Journal. He previously directed thought leadership and corporate communications for Sun Life Financial, where he devised brand, media relations, and product communications campaigns. His work received a Stevie American Business Award and several internal Impact Awards. He also served as Executive Director of NewTithing Group, an operating foundation receiving national media attention for IRS-based financial markets research educating investors and advisors on charitable gift planning relative to investment assets. He holds a BA in History from Harvard University and a Marketing Strategy Certificate from Cornell University’s online learning platform, eCornell.

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