What Is a Registered Investment Advisor (RIA), and How Do RIAs Access Alternative Investments?

TL;DR: A Registered Investment Advisor (RIA) is a firm or person registered with the SEC or a state regulator that is legally bound to a fiduciary standard, meaning the advisor must act in your best interest, not just recommend something "suitable." That legal duty, defined by the SEC's Commission Interpretation Regarding Standard of Conduct for Investment Advisers, is also the reason RIAs have become the primary gateway accredited investors use to reach private equity, private credit, and other alternative investments. If you want exposure to alts through a professional relationship instead of doing it yourself, you're very likely going to go through an RIA. Understanding how that relationship works, and what it costs, matters more than most investors realize.

The Legal Definition: Fiduciary Duty, Not Just Good Intentions

An RIA is not a job title someone picks. It's a legal status created by the Investment Advisers Act of 1940 and enforced by the SEC (for larger firms) or state securities regulators (for smaller ones). Registering as an RIA means a firm has agreed to operate under a fiduciary standard: a legal obligation to put the client's interests ahead of its own, at all times, not just when it's convenient.

That fiduciary duty breaks into two parts. The duty of care requires the advisor to give advice that's actually in your interest, based on a reasonable understanding of your goals, risk tolerance, and financial situation, and to monitor that advice over time, not just deliver it once and move on. The duty of loyalty requires the advisor to eliminate or disclose conflicts of interest that might tempt them to put their own compensation ahead of your outcome. If an RIA earns a placement fee for putting you into a specific private credit fund, they have to tell you that. They can't just quietly pocket it.

This is a meaningfully higher bar than what applies to a typical stockbroker. Broker-dealers, regulated by FINRA, generally operate under a suitability standard, upgraded in 2020 to Regulation Best Interest (Reg BI). Reg BI is better than plain suitability, but it still isn't fiduciary duty. A broker has to reasonably believe a recommendation is in your best interest at the time it's made and disclose material conflicts. An RIA has an ongoing, continuous obligation that follows the relationship, not just the transaction.

RIA Fiduciary Duty vs. Broker-Dealer Suitability / Reg BI

Dimension	RIA (Fiduciary Standard)	Broker-Dealer (Reg BI)
Governing law	Investment Advisers Act of 1940	Securities Exchange Act of 1934 / Reg BI (2020)
Core obligation	Act in the client's best interest at all times (duty of care + duty of loyalty)	Recommendation must be in the client's best interest at the time made
Duration of duty	Ongoing, continuous through the advisory relationship	Point-in-time, tied to each specific recommendation
Compensation model	Typically fee-based (percentage of AUM, flat fee, or hourly)	Often commission-based per transaction
Conflict handling	Must eliminate or fully disclose conflicts of interest	Must disclose material conflicts; not required to eliminate them
Regulator	SEC (firms with $100M+ AUM) or state securities regulators	FINRA
Disclosure document	Form ADV (Parts 1, 2, 3)	Form CRS (relationship summary)

Neither standard guarantees good performance. Fiduciary duty is a legal obligation about process and disclosure, not a promise about returns. But when you're allocating capital into illiquid alternative investments, where you can't just sell tomorrow if you change your mind, the standard governing the person recommending that allocation is not a minor detail.

Form ADV: The Document Almost Nobody Reads

Every RIA has to file Form ADV with the SEC, and it's public. I'd argue it's the single most underused due-diligence document in wealth management. Investors will spend hours reading a fund's private placement memorandum and skip the four-page summary that tells them who's actually managing their money and how that person gets paid.

Form ADV has three parts, according to Investor.gov, the SEC's investor education site:

Part 1 covers the firm's business, ownership structure, employees, and, critically, disciplinary history. This is where you find out if the firm or its principals have been sanctioned, sued, or barred.

Part 2, the "brochure," is where the real substance lives. It discloses fees, the types of clients the firm serves, its investment strategies, and specific conflicts of interest, including whether the firm gets paid by the alternative investment platforms or fund sponsors it recommends.

Part 3, the "relationship summary" (Form CRS), is a short, plain-language document meant to help you compare advisors. It covers services offered, fees and costs, the standard of conduct that applies, and a set of standardized questions you're encouraged to ask, like "How will you choose investments to recommend to me?"

Here's how to actually check one. Go to the SEC's Investment Adviser Public Disclosure database (IAPD), search the firm or individual advisor by name, and pull the current Form ADV. Read Part 2 first. Look specifically for the fee schedule and the conflicts-of-interest section. If the firm offers access to private funds, feeder vehicles, or platforms like iCapital or CAIS, the brochure should disclose whether the firm or its advisors receive any compensation tied to those recommendations. If you can't find that disclosure, ask directly. It has to exist somewhere in writing.

The Money Behind the Trend: RIAs Are Pouring Into Alts

The shift toward alternatives inside RIA portfolios isn't a niche story anymore. It's structural. According to Cerulli Associates' U.S. Private Markets 2025 research, U.S. financial advisors currently hold $1.9 trillion in less-than-fully-liquid private market strategies. Cerulli projects that figure reaches $3.7 trillion by 2029 — a $1.7 trillion increase in under five years.

The 2025 Cerulli/KKR RIA Private Markets Survey, which polled more than 100 RIAs, adds texture to that number. The average RIA currently allocates 2.3% of assets under management to private markets. Cerulli projects illiquid alts will climb to 3.3% of advisor assets by 2027, up from 2.4% in 2025. Nearly 29% of RIAs surveyed said they expect to increase their alts allocations by 2026.

What's more striking is the split within that population. Nearly half of the RIAs surveyed already allocate 10% or more of client AUM to private markets, and 81% expect to maintain or exceed that level over the next five years. That's not a firm dabbling. That's a firm that has built alts into its core portfolio construction, not treated it as a side allocation for a handful of wealthy clients.

What's driving it: client demand for uncorrelated returns, RIA fee compression in traditional asset management pushing firms to differentiate on access, and a wave of infrastructure (platforms, custodians, and fund administrators) that has made distributing private funds to smaller RIA offices operationally realistic in a way it wasn't a decade ago. Firms like Blackstone, Apollo, and Blue Owl have all built retail and semi-liquid product lines explicitly designed for this distribution channel.

How RIAs Actually Get You Into a Deal

Here's the mechanical part most articles skip. An RIA doesn't typically call up Blackstone directly and negotiate a $100,000 allocation for one client. Instead, most RIAs access alternative investments through distribution platforms that aggregate demand across many advisors and many clients, then feed it into institutional-scale private funds.

The two names that dominate this space are iCapital and CAIS. Both function as intermediary infrastructure: they handle fund sourcing, subscription documents, accreditation verification, reporting, and, often, the feeder fund structure that lets a $50,000 or $100,000 check from an individual investor sit alongside institutional capital in the same underlying fund. Our review of iCapital as an alts distribution platform covers how that aggregation model actually functions from the advisor's side. Newer entrants like Opto Investments are building similar infrastructure aimed at smaller, independent RIAs that don't have in-house alts teams.

This infrastructure is also why an advisor's alt menu looks the way it does. A firm plugged into iCapital's platform, for instance, can offer clients access to feeder funds for private equity, private credit, and real estate strategies that would otherwise require a direct institutional relationship and a much larger minimum check. Our breakdown of the infrastructure behind a typical advisor's alternative investment menu goes into how these platforms structure fund access and reporting.

Now, the part that requires your full attention: fee layering. Every layer between you and the underlying asset adds a cost, and in a feeder fund structure there are usually four layers stacked on top of each other. Based on research from Envestnet PMC and iCapital's own Form ADV brochure filed with the SEC's IAPD, a typical iCapital-style feeder fund fee stack looks like this: a 0.40% to 0.50% platform or access fee charged by the distribution platform itself, roughly a 2% management fee charged by the underlying fund manager, approximately 20% carried interest on profits above a hurdle rate, and then a separate 0.75% to 1.50% advisory fee charged by your RIA on top of all of it. Add those up and you're frequently looking at more than 3% in annual fees before the fund has generated a dollar of profit for you.

None of that is illegal or even unusual. It's how the private markets distribution channel is built. But it means the headline return of the underlying fund is not what lands in your account. The gap between gross fund performance and your net return, after platform fees, management fees, carry, and advisory fees, can be substantial, and it compounds every year you're in the position.

The Honest Caveat: What This Costs You, and What to Ask

I want to be direct about this because too much financial content glosses over it: accessing alts through an RIA and a distribution platform is more expensive than accessing them directly, and it should be. You're paying for sourcing, due diligence, subscription document handling, ongoing reporting, and the advisor's judgment about whether a given fund fits your portfolio. That's a real service. The question isn't whether you should pay for it. It's whether you know exactly what you're paying and whether it's worth it for your specific situation.

Before you allocate a dollar to alternatives through your RIA, ask these questions and get them answered in writing, not verbally:

• What is the all-in fee I'll pay across every layer (platform fee, fund management fee, carry, and your advisory fee) expressed as a single combined percentage?
• Do you or your firm receive any compensation from the platform (iCapital, CAIS, or others) or from the fund sponsor for recommending this investment to me?
• What's your firm's current Form ADV Part 2 disclosure on conflicts of interest related to alternative investments specifically?
• How was my accredited investor status verified, and by whom?
• What's the actual liquidity timeline for this fund? When can I realistically expect capital back, and under what conditions?
• How does this specific allocation compare, net of all fees, to accessing a similar strategy directly or through a lower-cost vehicle?

If your advisor can't answer the first question with a specific number, that's a problem. Fee opacity in layered alt structures is exactly the kind of conflict Form ADV Part 2 is designed to force into the open. Separately, verifying accredited status correctly matters for both you and the advisor. Our guide to accredited investor verification and third-party verification services covers what a compliant process actually looks like.

Your Next Step

Don't take an RIA's fiduciary status on faith. Verify it, then verify the cost structure of anything they put in front of you. Here's the sequence I'd follow:

• Pull the firm's Form ADV Parts 2 and 3 from the SEC's IAPD database before your first real conversation about alts.
• Read the conflicts-of-interest section specifically, twice.
• Ask for the all-in fee stack on any specific fund recommendation, in writing.
• Compare that fee stack against the fund's stated gross return target to understand your realistic net return.
• Confirm how your accredited investor status was or will be verified, and keep that documentation for your own records.

An RIA can be a legitimate, valuable way to access private markets you couldn't reach on your own. The fiduciary standard exists for a reason, and platforms like iCapital and CAIS have genuinely opened doors that used to be shut to anyone without a nine-figure net worth. Just don't let "fiduciary" become a word that stops you from asking the same hard questions you'd ask anyone else handling your money.

Author Disclosure: Jeff Barnes, MBA has no personal position in any company, fund, or platform named in this article. Angel Investors Network has no current commercial relationship with any party mentioned. AIN provides marketing and education services, not investment advice. Past performance does not guarantee future results. All investments involve risk, including loss of principal.