Every order your clients place needs a price, a counterparty, and a fill within milliseconds. Unless you warehouse every position yourself, that depends on your liquidity provider, and the choice shapes your spreads, slippage, collateral needs, and counterparty risk.
A liquidity provider (LP) is the institution or venue on the other side of your order flow. It quotes the bid and ask prices your clients trade on and supplies the market depth needed to fill their orders.
For the trader-side explanation, read What Is a Liquidity Provider in Forex. For where liquidity fits into your wider setup, see How to Start a Brokerage Firm.
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Global banks such as JPMorgan Chase, Citibank, and UBS that set interbank pricing. Deepest liquidity, but direct access needs bilateral credit and multi-million-dollar collateral, so most new brokers reach them through an intermediary.
Prime brokers extend credit so you can trade with multiple dealers under one relationship. They suit larger brokers with significant capital, but if the credit line is cut, access ends with it.
Prime-of-Prime providers hold Tier 1 credit lines and resell access at much lower thresholds, often bundled with bridge and MT4/MT5 connectivity. A practical route for many small and mid-sized brokers, at the cost of an extra layer and possible markup.
Algorithmic market makers such as Citadel Securities and XTX Markets. Competitive pricing in normal conditions, but quotes can widen or disappear within seconds of major news.
Electronic venues matching orders from many participants, usually commission-based with transparent pricing. Depth varies, so tight top-of-book quotes can thin out for larger orders.
Regulated venues under MiFID II in the EU and its UK equivalent, with published, non-discretionary matching rules. Transparent and firm pricing, subject to membership criteria.
Technology that combines several providers' feeds into one order book and routes to the best quote. It is not a counterparty, so you still need agreements with each provider.
Centralized crypto exchanges and specialist crypto market makers supply pricing across digital asset markets that trade around the clock. Brokers offering crypto CFDs typically connect to them through APIs. DeFi pools follow a different model, with smart contract risk and no regulator to escalate disputes to.
Every client order passes through several layers before it is filled. Each layer is a point you configure, pay for or monitor.
Goes to the market (A-Book)Stays in-house (B-Book)
Client → Platform → Bridge → Aggregator → Liquidity Provider → ConfirmationClient → Platform → Bridge → Confirmation
Your bridge sends the order to the market, and the liquidity provider fills it as counterparty. You earn from markup or commission, while the market risk sits with the provider.Your brokerage takes the other side of the trade in-house, so no liquidity provider is involved. Orders are filled internally, but your brokerage carries the market risk on client positions.
Your client opens a trade on your trading platform, such as MT4, MT5, or cTrader.
The bridge decides whether the order goes to the market (A-Book) or stays in-house (B-Book), and applies any markup you set.
For orders routed out, the aggregator compares live quotes from your connected providers and picks the best available price.
The provider accepts and fills the order as counterparty, or matches it on its venue. If the provider applies last look, the order can be rejected at this stage.
The fill price travels back through the bridge to the platform, and your client sees the executed trade, usually within milliseconds.
These three terms are often used interchangeably, but each plays a different role in your execution setup. Knowing which is which helps you budget correctly and avoid gaps in your infrastructure.
| Liquidity Provider | Liquidity Aggregator | Liquidity Bridge | |
|---|---|---|---|
| Role | Supplies executable prices, market depth and instruments | Combines feeds from several providers into one order book | Connects your trading platform to providers or aggregators |
| Counterparty? | Yesor provides venue access | No | No |
| What you control | Contract terms, instruments, and pricing tiers | Which feeds are combined and how quotes are ranked | Routing rules, markups, and failover |
| Who fills the external order? | The LP or venue. | Routes each order to the provider that fills it | Receives fill reports and maps them back to the platform |
Identical headline spreads can still deliver very different executions. Use this checklist to narrow down your options.
List your instruments and decide between A-Book, B-Book, or hybrid routing, then confirm each provider covers them.
Check the provider's legal entity on the regulator's public register, such as the Financial Conduct Authority (FCA) or the Financial Services Commission (FSC) of Mauritius, and match it to your contract.
Request a trial feed and compare spreads and depth in quiet sessions and during high-impact releases.
Confirm MT4, MT5, or cTrader support via bridge or FIX API, and server locations such as LD4, NY4, or TY3.
Ask about last look, rejection rates, and whether slippage is applied symmetrically.
At 2,000 lots a month (about 200 million notional), a $2 per million commission difference per side costs roughly $4,800 a year, before collateral and setup fees.
Connect at least two providers through an aggregator so one outage does not halt execution.
Examples of providers servicing retail forex and CFD brokerages, listed alphabetically. This is not a ranking.
| Liquidity Provider | Regulation / Authorization | Execution & Connectivity | Typical Clients |
|---|---|---|---|
 B2BROKER  (opens in a new tab)Liquidity aggregator / Prime-of-Prime | Mauritius FSCFSCALabuan FSACySECFSA Seychelles | Multi-asset liquidity feeds across forex and CFDs | Retail forex and CFD brokerages |
 Drovix (opens in a new tab)Institutional liquidity provider | Mauritius FSC | Acts as principal, own market-making and bridge technology | Professional and institutional counterparties |
 GBE Prime (opens in a new tab)Institutional liquidity service | CySEC (BaFin-registered branch)FSA Seychelles | MT4, MT5 and FIX API, servers in LD4, NY4, TY3 | Institutional clients |
 LMAX Group (opens in a new tab)Exchange-style venue / Prime of Prime | FCA | Central limit order book, transparent matching | Retail forex and CFD brokerages |
 Swissquote (opens in a new tab)Licensed bank / prime brokerage | FINMA | Prime brokerage and liquidity distribution | Financial intermediaries |
Your liquidity provider shapes the spreads, fills, and counterparty risk your clients experience. Map your instruments and routing model first, verify each provider on the regulator's own register, and test execution during quiet sessions and high-impact releases before you sign. Connecting at least two providers through an aggregator may reduce the chance that one outage halts execution.
Global banks that deal directly in the interbank market, such as JPMorgan Chase, Citibank, and UBS. Most brokers access their pricing through Prime-of-Prime providers because direct access requires substantial collateral.
Centralized exchanges, crypto market-making firms, and DeFi pools. Brokers offering crypto CFDs typically connect to centralized venues through APIs.
Generally, yes. Multiple providers give you a fallback if one feed fails and keep pricing competitive, at the cost of extra integration work.
Most brokers connect through a bridge that links their trading platform, such as MT4, MT5, or cTrader, to the provider via FIX API. The bridge applies your routing rules and can connect several providers at once.
A liquidity aggregator combines price feeds from several providers into one order book so each order can be routed to the best available quote. It does not supply liquidity itself, so you still need agreements with each underlying provider.
