Read Testimonials & Reviews From Our Cryptocurrency Trading Clients

“Our company, a growing mining operation, signed on with BlockFills in the spring of 2022 as part of our search for reliable trading counterparties. Ironically, this was right around the time when the market was exhibiting significant weakness but preceding the actual “collapse” in prices we saw just a couple months later.

BlockFills was a stalwart market participant through the entire period, routinely checking in on us with trading ideas and potential de-risking solutions – a practice of theirs that continues to this day. Many of our peers had major counterparty risk issues with their various trading partners throughout the time we’ve been with BlockFills, but we’ve had no such problems. We are happy to continue working with BlockFills as our business continues to scale alongside theirs.“

Trinity Mining

“Our company is a fiat-to-crypto on-ramp that makes it easy for users around the world to purchase digital assets. We service wallets, exchanges, GameFi and a variety of other web3 applications. We onboarded at BlockFills to form a relationship with an institutionally focused firm and shift the bulk of our business away from CEXs that proved very difficult to work with on a variety of levels. We especially appreciate BlockFills’ sharp pricing when it counts, and quick settlement ability. This elevated experience has allowed our firm to focus on growing the business rather than constantly fretting about how we are going to deal with issues introduced by trading counterparties.”


BlockFills has been a reliable provider to our crypto fund since January 2021.  With Blockfills, we trade majors like spot BTC and ETH, altcoins across the top 100, and complex option strategies. We’ll trade on their bid or offer, or work orders at desired prices. The team is responsive and competent, and the liquidity is excellent. We look forward to leaning on BlockFills’ services further as our strategies and company scale up.

Hedge Fund

“I’m delighted to share my experience with the exceptional team at BlockFills. They are a great team—responsive, knowledgeable, and genuinely committed to supporting our growth. Their expertise in cryptocurrency trading and market liquidity has been instrumental in our success. Vision Trader provides valuable tools and insights that have enhanced our trading strategies and decision-making. I highly recommend BlockFills to anyone looking for a reliable partner in the digital asset trading space.”

Payment Processor

“I reached out to BlockFills to scale an enterprise-grade mining business, risk manage our corporate treasury, and act on our belief that higher BTC prices were imminent. The team is multifaceted and professional and knows how to work with a large-scale organization across numerous lines of business – trading, lending, hedging, hardware, and more. I have never worked with a team who was more responsive and cares more about my business than BlockFills. We have transacted with BlockFills in amounts well over $100,000,000 with intention of scaling that figure even further. Kudos to BlockFills for an excellent all-around service.”


“I recently started utilizing BlockFills for on and offramp needs related to my mining business. I must say, I’m thoroughly impressed. The onboarding process was seamless, and the trading and settlement process is simple. They have built a very nice UX that combines an electronic platform with a white glove level service. The pricing is also excellent. Their team has deep trading backgrounds, so I was initially skeptical that they would be interested in this very simple business, but they’ve been great. Highly recommended.”

Mining Infrastructure Provider

“I have been a BlockFills client for years, doing business through various entities focused on the mining and payments space. I can attest to their excellent work when it comes to individualized client service, execution, and pricing. BlockFills runs their operation the way any client-facing business should be run. It is absolutely evident that they really care, and equally as important, that they know what they are doing. This is a team whose experience shines through in every interaction I have with them. I love working with BlockFills and would refer them to anyone looking for services related to digital assets.”

OTC Desk

“I am pleased to share my experience with BlockFills, a leading company in the realm of crypto exchange services. As an avid participant in the cryptocurrency market, I have had the privilege of engaging with various platforms, and BlockFills stands out as a true industry leader.

From the moment I initiated contact with BlockFills, their commitment to providing a seamless and secure trading experience was evident. The platform’s user-friendly interface made navigating the complexities of the crypto market a breeze. What sets BlockFills apart is their dedication to transparency and compliance, ensuring that users like myself can trade with confidence and peace of mind.”

Brokerage & Exchange

“BlockFills is a Stellar Liquidity Provider for Our Corporate Portfolio. Our experience with BlockFills has been nothing short of exceptional. Their unmatched liquidity across a wide range of cryptocurrencies has streamlined our transactions, ensuring seamless execution every time.

Security is paramount in the crypto space, and BlockFills’ robust measures provide peace of mind, safeguarding our assets against potential threats.

What truly sets BlockFills apart is their stellar customer support. From onboarding to ongoing assistance, their team of experts has been there for us every step of the way, ensuring a hassle-free experience.

In summary, partnering with BlockFills has been a game-changer for our corporate portfolio. Their liquidity, security, and exceptional support make them an invaluable asset to our organization.

OTC Desk