TAMP vs OCIO: Outsourced Investment Management for RIAs in 2025

When to Build, When to Buy: Making the Call Between TAMP and OCIO

It usually starts the same way. Two partners, end of the day, coffee gone cold. One says, “We can’t keep running billing and rebalancing ourselves — it’s killing us.” The other fires back, “But if we outsource, what do we even stand for?”

That tension lives inside almost every independent RIA in 2025. The business is growing, the industry is expanding, and according to RIAbiz, RIAs are on track to control a third of retail assets by 2027. But growth doesn’t make the engine smoother. It makes the weak spots louder: reporting errors, compliance letters, bottlenecked onboarding, partner burnout.

Which is why the real question isn’t whether you know what a TAMP is. It’s whether you should build, buy, or partner — and how that choice shapes your firm’s future.

If you’re new to TAMPs and want a primer on how they work, start with our post What Is a TAMP? How Independent Advisors Are Using Them to Grow in 2025.

The moments when firms start to crack

It’s not usually about the first $50M. Firms can still get by with model spreadsheets and manual rebalancing at that size. The break comes later, when growth outpaces operations:

• New assets flood in faster than ops can scale. Custodian feeds pile up. Clients get stuck in onboarding bottlenecks.
• Quarter-end eats entire weekends. Performance reports misfire, billing doesn’t reconcile, and someone has to manually explain adjustments to angry clients.
• Compliance letters sting. SEC examiners keep circling the same hot buttons: billing accuracy, best execution, and sloppy trade documentation.
• Clients demand more. They want private credit or interval funds. They want an “institutional process” you can’t fake with two staff members and an Excel sheet.

At that point, the outsourcing conversation isn’t optional. It’s survival.

When a TAMP buys back your time

A TAMP (turnkey asset management platform) is the path most growth firms consider first. Think of it as outsourcing the “engine room.” The platform takes care of trading, rebalancing, billing, and reporting. You keep the client-facing advice.

We’ve covered the basics of TAMPs in more detail here. For this piece, the focus is on when they make sense — and when they don’t.

What you gain:

• Operational relief. No more late nights fixing trades.
• Consistency. Workflows stabilize. Processes get predictable.
• Scale. A $500M firm can start acting like a $2B shop, at least on the middle-office side.
• Compliance coverage. Some liability shifts to the platform, especially around execution and documentation.

What you give up:

• Control. You’re inside their rails. Customization usually is limited.
• Differentiation. Clients who expect “custom” may notice they’ve been slotted into a strategist model.
• Cost. Twenty-five to forty basis points is standard. For planning-first shops, that’s manageable. For firms that promise alpha, it feels steep.

A TAMP works when your value lives in planning and relationships, not stock picking. If your brand is “holistic planning for business owners” or “family CFO,” a TAMP gives you leverage without undermining the story.

What an OCIO really gives you (and takes from you)

An OCIO (outsourced chief investment officer) takes a different path. Instead of a platform, you get a team that behaves like your CIO bench. They join your investment committee, build your models, run due diligence, and often bring alternatives you couldn’t access otherwise.

What you gain:

• Alignment. Portfolios reflect your philosophy, not a strategist’s template.
• Alternatives access. Many OCIOs bring in interval funds, private equity, and other institutional products.
• Governance. You can walk into a client meeting with real process documents and manager reviews. That builds credibility with families and institutions.

What you give up:

• Dollars. OCIO retainers are bigger checks than TAMP fees, even if the percentage is lower at scale.
• Time. An OCIO partnership isn’t “set it and forget it.” Your partners will be in more meetings, not fewer.
• Cultural friction. Some firms bristle at outside voices in their committee.

An OCIO makes sense when your brand is built on investment sophistication. If you’re a family office or a $1B+ RIA, clients expect governance, alternatives, and documentation. An OCIO gives you that without staffing a desk of CFAs.

If you keep it in-house, here’s the real cost

Plenty of firms want to keep it all in-house. Control is seductive. You get to say, “we build every portfolio ourselves.” But if you’re serious about that, you need to pay the price.

That means:

• A real investment team, not just a partner with a CFA.
• Documented research and best-execution reviews, quarter after quarter.
• Error correction policies that actually get followed.
• Billing logic tested against SEC exam expectations.

The cost adds up fast. One CFA, one trader, one ops lead, plus tech licenses. You’re already past half a million before counting partner time. That only makes sense north of $2B AUM or if investment management is your core identity.

For most RIAs, in-house isn’t cheaper. It’s just riskier.

How firms actually make the switch

Outsourcing isn’t a binary choice. Most firms mix and match:

• Core outsourced, niche in-house. Keep planning-driven beta with a TAMP, but run custom sleeves for legacy positions or tax optimization.
• Start TAMP, add OCIO later. Use a TAMP for scale. When clients demand alternatives, bolt on an OCIO for alts and governance.
• In-house with selective outsourcing. Run your own models but outsource rebalancing execution to avoid errors.

One $600M firm thought they could keep billing in-house until a $20 mistake ballooned into a client loss. Another, north of a billion, only hired an OCIO after a prospect flat out asked why they didn’t have one. Most transitions happen under pressure — better to plan them deliberately.

Who’s in the market right now

The market isn’t static. It’s consolidating.

• Envestnet. Still the giant. Taken private recently. Advisors grumble about bloat and sluggish innovation.
• AssetMark. Leans into practice support. Bought Adhesion and Morningstar’s TAMP book.
• Orion + Brinker. Full-stack play: tech plus asset management. Integration risk is the big question.
• SMArtX and Adhesion. Open-architecture, attractive to midsize firms who want flexibility.
• GeoWealth. Branding itself as the “modern TAMP.” UMA, alternatives, fresh capital.
• Buckingham and SEI. Still dominant in the OCIO lane. Institutional credibility.
• Robinhood/TradePMR. New custody entrant. Early days, but could shake things up for younger firms.

That’s the traditional map. But there’s also a new lane forming: smaller, modular providers focused less on locking advisors into a monolithic platform and more on stitching cleanly into existing stacks. Revisor sits here. We’re building for RIAs that don’t want a black box or another quarterly surprise. Instead, we focus on flexibility, transparency, and a path that lets firms grow without giving up their DNA.

The trend is clear: fewer players, higher switching costs. If you outsource, read the exit clauses carefully, and look for partners who leave the door open, not closed.

The questions worth asking before you sign anything

When you sit down with a TAMP or OCIO, the glossy deck won’t tell you this. Ask:

• What does the client see on their statement?
• How clean is the tech integration? Show me live, not a slide.
• What happens if we leave? Do we keep performance history?
• Who owns the client communication when models shift?
• How do you handle alternatives? Subscription windows, liquidity, reporting.
• What’s your policy for billing errors and best-execution reviews?

These questions separate partners from vendors.

Which kinds of RIAs fit where

Think about where you land.

• Boutique planners under $500M. Your clients don’t care about alpha. They care about planning and responsiveness. A low-cost TAMP is your best leverage.
• Growth shops $500M–$1B. Still a TAMP fit, but pick for flexibility. Open architecture, advisor-traded sleeves, UMA with alternatives.
• Large RIAs $1B+ and family offices. Clients expect governance and sophistication. An OCIO fits. Don’t wait until a client asks why you don’t have one.
• Hybrid broker/RIAs. If you want to look different from wirehouses, stop pretending in-house is enough. Either lean on a TAMP for simplicity or bring in an OCIO to add real depth.

Where this leaves you in 2025

At the end of the day, TAMP vs OCIO isn’t really about platforms. It’s about leverage.

A planning-first boutique should outsource the engine and free up hours for clients. A billion-dollar shop with family office DNA should be working with an OCIO. Firms with the scale and discipline to keep it in-house can do it, but the bar is high.

What you can’t do in 2025 is stall. Every quarter you delay, operational debt piles higher, partners burn out, and clients see the cracks.

That’s exactly why we built Revisor’s platform: to give firms flexible RIA back office solutions that don’t box them in. For more blunt analysis on building an advisor tech stack for growth, check out our about us and the Revisor blog.

Not sure if you need the 101 first? Our breakdown of what a TAMP is and how RIAs are using them to grow in 2025 can get you up to speed.

Because in 2025, alpha isn’t the scarce resource. Bandwidth is.

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