The SPV explained: how one line on your cap table pools twenty investors and closes in seven days

A friend closed a $2 million pre-seed extension in April. Twenty-three investors participated. The company's cap table added one row.

The mechanics: a syndicate lead ran an allocation using Sydecar. The founder signed one subscription agreement between the company and a Delaware LLC formed for the deal. Twenty-three LPs signed subscription agreements with that LLC. Sydecar handled formation, KYC, capital collection, wire, and cap table onboarding. The whole thing closed in six calendar days from term-sheet acceptance to money in the founder's bank account.

Fifteen years ago that same transaction would have taken sixty days, three lawyers, and enough paperwork to fill a filing cabinet. And the founder's cap table would have twenty-three names on it instead of one. The reason the modern version works is the SPV: the Special Purpose Vehicle, the small legal entity that sits between the investors and the company and holds the investment on their collective behalf.

This article is a working guide to how SPVs actually get built, what they cost, which vendors matter, what regulatory guardrails they operate under, and where they fit in a founder's fundraise. It is written for founders raising rounds with syndicate participation, for angel investors thinking about running their first SPV, and for anyone trying to make sense of why "AngelList changed venture forever" is a real claim and not marketing.

What an SPV actually is

A Special Purpose Vehicle is a legal entity, almost always a limited liability company, formed for the sole purpose of holding one investment. It has one asset: the shares (or SAFE, or convertible note) it purchased in the target company. It has one job: to hold that asset and pass through any proceeds to its investors when the company exits.

The SPV is what lets a group of investors invest together as if they were one investor. From the company's perspective, the SPV is a single shareholder. From the SPV's perspective, its members are limited partners (LPs) who pooled their money to make one collective investment. The person who organizes the SPV, negotiates the deal, and runs the paperwork is the general partner (GP), also called the syndicate lead or sponsor.

Every SPV needs three things: a legal wrapper (the LLC), a set of documents (operating agreement, subscription agreement, side letters), and a mechanism for handling money (banking, KYC, cap table administration). The vendors we discuss below exist because reproducing those three things by hand costs $10,000 to $20,000 in legal fees per deal. Reproducing them at software speed costs a fraction of that.

Why SPVs exist: a five-minute history

Before AngelList: SPVs were rare and expensive

SPVs are not new. Private equity firms have used them for decades to structure single-asset investments, real estate deals used them to isolate liability, and boutique venture funds occasionally formed one-off SPVs when a limited partner wanted extra exposure to a hot deal. But at the angel end of the market, SPVs were rare. Angels wrote personal checks. Companies added angels as individual shareholders. A round with fifteen angels meant fifteen cap-table entries, fifteen subscription agreements, and fifteen sets of signatures.

The cost of setting up an SPV, roughly $8,000 to $15,000 in legal fees plus $500 to $1,500 in Delaware filing fees and annual state franchise taxes, made SPVs economically unviable for deals below about $500,000. The math simply did not work. If ten angels wanted to invest a combined $250,000 and pay $10,000 to structure it, they were losing 4% of their capital before the deal even closed.

September 2013: AngelList launches Syndicates

The change came from AngelList. In September 2013, then a job board and startup-directory business run by Naval Ravikant and Babak Nivi, launched AngelList Syndicates. The pitch was simple: any accredited investor could raise a "syndicate," recruit followers who would automatically back their deals, and pool everyone's capital into a single-purpose LLC that would sit on the cap table as one entry. AngelList handled formation, subscription documents, banking, and post-close administration. The pricing model was carry-based (the syndicate lead earned 20% carried interest on gains, AngelList took an additional 5%, and the LP received 75% of upside). Setup cost dropped from ~$10,000 to effectively zero.

The consequence was that SPVs became the default structure for angel syndication in Silicon Valley within eighteen months. By 2016, AngelList had facilitated more than $200 million in syndicate investments. By 2020, that number had crossed $1 billion. The industry data is uneven because most private syndicates do not report volumes, but the shape of the change is clear: SPVs went from rare-and-expensive to routine-and-cheap in roughly two years, and syndicate leads became a new profession.

The post-AngelList vendor market

AngelList's success attracted competitors. Assure launched in Utah with a self-serve model. Sydecar launched in 2021 with faster closes and flat pricing. Roundtable launched in France targeting the European market. Vauban was acquired by Carta in 2022. Allocations launched with a claim of closing in as little as 12 hours. Each vendor took a slightly different position on price, speed, geographic focus, and target user, but all of them followed the same pattern: replace legal-and-admin friction with software.

Today an angel investor can spin up an SPV in a browser in about 20 minutes. Ten years ago, doing the same thing meant hiring a lawyer and waiting six weeks.

The anatomy of an SPV

Every SPV, whether formed on AngelList or with white-glove legal counsel, has the same underlying structure. Understanding the parts helps founders read what is on their cap table and helps investors understand what they are actually signing.

The legal wrapper: Delaware LLC (or Series LLC)

Ninety-plus percent of U.S. venture SPVs are formed as Delaware limited liability companies. Delaware is chosen because its LLC Act is well-established, its Court of Chancery has decades of case law on entity governance, and its filing fees are modest ($90 for formation, $300 annual franchise tax). No other state comes close in venture usage.

Some SPV vendors, notably early AngelList, use a Delaware Series LLC structure. A Series LLC is a master LLC that can create internal "series" or "cells," each of which is legally isolated from the others. One master entity can house thousands of individual SPVs, each acting as a separate series with its own bank account, its own tax ID, and its own liability isolation from the rest. This is administratively efficient but has slightly less-tested legal treatment in states that have not adopted analogous statutes, which is why some LPs prefer standalone LLCs.

The GP: syndicate lead or sponsor

The General Partner of an SPV is the entity or individual that organizes the deal and manages the vehicle. In most syndicated angel deals the GP is a single natural person (the syndicate lead), acting through a separate LLC that they own personally. The GP has fiduciary duties to the LPs and is responsible for the SPV's ongoing administration: tax filings, distributions, communications, and the eventual wind-down when the underlying investment exits or is written off.

The GP typically earns two things: a nominal management fee (or none), and carried interest, usually 20% of profits above the initial capital invested. On AngelList and Sydecar, the platform takes an additional platform fee that comes out of the LP side. On Assure and some legal-counsel SPVs, the carry is set individually per deal.

The LPs

Limited Partners are the passive investors in the SPV. They sign a subscription agreement, wire in their capital, and receive a pro-rata share of any distributions the SPV eventually makes. LPs have no operational role and no voice in whether the underlying company is a good investment; that decision is made by the GP.

Under Rule 506(b) and 506(c) (see below), LPs in most venture SPVs must be accredited investors. This is a hard requirement. Reg CF portals allow non-accredited retail investors; SPVs almost never do. See our companion piece on Regulation Crowdfunding for how those two paths differ.

The documents

Every SPV needs, at minimum, four documents:

• Certificate of Formation: filed with the Delaware Secretary of State. Public. One page. Contains the LLC name, registered agent, and formation date.
• Operating Agreement: the internal constitution of the LLC. Sets out how decisions get made, how distributions work, how the GP handles conflicts, what happens on dissolution. In vendor-provided SPVs this is a standardized template, usually 15 to 30 pages.
• Subscription Agreement: signed by each LP. States the LP's commitment amount, represents that they are accredited, and includes standard investor representations. Typically 8 to 15 pages.
• Private Placement Memorandum or Deal Summary: describes the target company, the terms of the SPV's investment, the fees, and the risks. Some vendors substitute a short "Deal Memo" for a full PPM.

Additional documents can include side letters (custom terms for a single LP), management agreements (formalizing the GP-LP relationship), and IRS Form W-9 or W-8 for tax reporting.

The regulatory guardrails

SPVs sit at the intersection of three federal regimes: the Securities Act (which governs the sale of securities), the Investment Company Act (which governs pooled investment vehicles), and the Investment Advisers Act (which governs the people who manage them). Each has an exemption that SPVs typically rely on.

Investment Company Act: 3(c)(1) vs 3(c)(7)

Any pooled vehicle that holds securities is, by default, an "investment company" under the Investment Company Act of 1940. That designation triggers registration and continuous compliance requirements that make an SPV commercially impossible. Almost every SPV relies on one of two exemptions:

• Section 3(c)(1): excludes from investment-company status a pool that has no more than 250 beneficial owners (raised from 100 in 2018 for "qualifying venture capital funds" under $10 million in assets) and does not make a public offering. This is the workhorse exemption for angel syndicates.
• Section 3(c)(7): excludes from investment-company status a pool whose investors are all "qualified purchasers." A qualified purchaser is defined as an individual or family entity with at least $5 million in investments, or an institution with at least $25 million. 3(c)(7) allows up to 2,000 investors (the JOBS Act 2010 threshold before Exchange Act reporting requirements kick in).

Most syndicate SPVs, especially those for smaller deals, use 3(c)(1). Large deals with a mostly institutional investor base sometimes use 3(c)(7) to allow a larger participant count. The tradeoff is that 3(c)(7) narrows the eligible LP universe substantially.

Securities Act: Rule 506(b) vs 506(c)

The SPV itself is issuing securities (its LLC interests) to its LPs. That issuance needs an exemption from Securities Act registration. Two options:

• Rule 506(b): no general solicitation, up to 35 sophisticated non-accredited investors permitted, plus unlimited accredited. Investors self-certify accreditation. This is the default for pre-existing-relationship deals: the syndicate lead invited investors they already knew, no public marketing.
• Rule 506(c): general solicitation allowed, but every investor must be verified accredited (not just self-certified). This is what enables public marketing of a syndicate: an angel can tweet about their SPV, list it on AngelList, or advertise it in a Substack, but every investor must pass verification through documentation (tax returns, brokerage statements, or a letter from a CPA/attorney/broker).

Almost every marketable SPV in the modern era uses 506(c). That is the rule change that enabled AngelList to publicly list deals. Sydecar, Assure, and other vendors have built verification directly into the LP onboarding flow.

Investment Advisers Act: the GP question

Someone running SPVs for compensation might be considered an "investment adviser" under the Investment Advisers Act of 1940. Historically most syndicate leads relied on the de minimis exemption (Section 203(b)(3)) or the venture capital fund adviser exemption (Section 203(l), adopted after Dodd-Frank in 2010), which allows an adviser to run VC-style funds without registering as long as the fund meets the statutory definition. Modern platform vendors like AngelList have taken on much of the compliance load themselves, meaning individual syndicate leads on those platforms are typically operating under the platform's regulatory umbrella. Off-platform GPs typically need their own securities counsel.

The cost stack

Cost is where SPVs became a real product. The old model was a five-figure legal bill per deal. The new model is a per-deal software-price. Here is how the numbers actually look in 2026.

Setup cost (paid at formation)

Ongoing costs (paid annually or on distributions)

Beyond the setup fee, most SPVs incur annual administration and tax-preparation costs (typically $1,500 to $4,000 per year) for as long as the vehicle exists. Delaware franchise tax is $300 per year. When the underlying investment exits, the fund admin runs the distribution waterfall and files final tax returns, usually built into the initial fee at Sydecar and Allocations and priced separately at legacy vendors.

Carried interest

The GP typically earns 20% of profits above the LPs' contributed capital, paid at exit. Some GPs charge no carry (rare, usually for personal syndicates with friends). Some charge higher carry for hot deals (25% has become the new "premium" carry). Platform-imposed additional carry (5% on AngelList, similar on some others) is added on top of the GP carry and reduces LP net returns.

A worked example: An SPV invests $500,000 in a company. The company exits at 10x. The SPV's share is worth $5 million. Profit is $4.5 million. GP earns 20% carry = $900,000. LPs share the remaining $3.6 million plus their $500,000 principal, pro rata. On a platform that adds 5% additional carry, that comes out of the LP share.

The timeline

How long does it take to close an SPV? The answer varies from "seven days" to "eight weeks," depending on the vendor, the deal complexity, and whether the LPs need to be onboarded from scratch.

The fastest published SPV close on Allocations was, at time of writing, under 12 hours. That is a marketing edge case, not a typical outcome. A realistic modern platform SPV closes in one to two weeks. Legacy SPVs still exist because some deals require custom terms that templates cannot handle, but the volume has shifted toward platforms.

What a founder sees on the cap table

The founder-facing consequence of an SPV is that a group of investors shows up as one line on the cap table. Instead of twenty individual investors, the cap table lists "Syndicate LLC - Series 12," with a total dollar amount and a total share count.

This is a real advantage. Cap tables with thirty-plus individual angel names create friction at every subsequent financing round: signature collection on protective provisions, notice-and-tender requirements, indemnification bottlenecks. A cap table with three or four SPV entries and a handful of larger direct investors is much cleaner. It closes future rounds faster and reduces legal cost for the company at Series A and later.

There are also downsides worth naming. The founder does not have direct relationships with the LPs behind an SPV. The syndicate lead is the founder's contact, and the LPs are anonymous unless the lead chooses to share the roster. That can be a problem when a founder wants twenty-three warm advocates spreading the word about the company. It can be a solution when the founder wants a clean cap table and does not want twenty-three inbound "just checking in" emails per quarter.

The international market

SPV-like structures exist outside the U.S. but with different legal wrappers and different regulatory contexts. The three markets worth knowing:

United Kingdom

UK syndicates typically use an English Limited Partnership (E-LP) under the Limited Partnerships Act 1907, with a corporate general partner. FCA authorization is required for the operator unless the fund qualifies as a "small AIFM" (assets under management below €500 million). Odin (previously Vauban, before Carta's acquisition) is the dominant vendor. Cost is broadly similar to U.S. platform SPVs after currency conversion.

European Union

The EU regulatory landscape is defined by the Alternative Investment Fund Managers Directive (AIFMD), which classifies most SPVs as AIFs and imposes registration or authorization on the manager. Luxembourg RAIF (Reserved Alternative Investment Fund) and SLP (Special Limited Partnership) structures are common. France's Roundtable operates within this framework and has become the go-to vendor for EU syndicates.

Cayman Islands

For cross-border deals where LPs are international, the Cayman Islands Exempted Limited Partnership remains the standard. Costs are higher ($15,000 to $40,000 in setup) and the vehicle is less accessible to U.S. LPs due to tax complexity, but Cayman remains dominant for institutional funds and large syndicates with international investor bases.

The common mistakes

Running an SPV without a GP entity

A syndicate lead who acts as GP in their personal capacity takes on unlimited personal liability. Every SPV should have a corporate GP (usually a Delaware LLC owned by the lead) that stands between the individual and the SPV. This is a routine step that legacy vendors handle automatically; some self-serve setups skip it and create real risk.

Confusing 506(b) with 506(c) marketing

Under 506(b), general solicitation is prohibited. That means no public tweeting about the deal, no listing it on a public deal-flow site, no email blasts to a general list. If the syndicate lead breaks that rule, the exemption is lost and the deal converts into an unregistered public offering, which is a securities violation. Modern platforms enforce the boundary automatically by locking public listings to 506(c) mode. Off-platform GPs sometimes miss this and cause problems for themselves and the company they invested in.

Missing tax filings

An SPV files a Form 1065 partnership return every year, issues K-1s to LPs, and files state returns wherever it has nexus. Missed filings create IRS penalties and can create tax problems for LPs who never receive their K-1s. This is why every serious SPV vendor bundles tax administration into the fee, and why legacy self-serve setups often become nightmares three years in when someone forgets to file.

Ignoring the 250-investor cap under 3(c)(1)

A syndicate lead who runs a wildly popular deal and accepts every commitment can accidentally cross the 250-investor threshold, blowing the 3(c)(1) exemption. Platforms enforce the cap; hand-run SPVs need discipline.

Where SPVs fit in a founder's fundraise

Founders raising modern pre-seed and seed rounds increasingly see SPVs as the default way to accept angel and syndicate participation. The typical cap table for a $2 million pre-seed today looks like this:

• One institutional lead (or two co-leads) writing $500,000 to $1 million each, directly on the cap table.
• Two or three syndicate SPVs, each pooling $100,000 to $400,000 from ten to fifty angels.
• A handful of large direct angel checks ($25,000 to $100,000) from strategic operators the founder specifically wants on the cap table.

That cap table has five to seven line items, closes cleanly, and gives the founder a small pool of direct angel relationships alongside a larger pool of syndicate-backed capital that stays operationally invisible. It works because SPVs made syndicated angel investing infrastructure-cheap.

Where the market is going next

Three trends are worth watching:

Speed continues to compress. Sydecar and Allocations regularly close SPVs in under a week. Same-day closes are increasingly common for repeat GPs with pre-verified LP bases. The floor keeps moving down.

Pledge-driven syndication. Traditional syndication requires the GP to spend weeks recruiting LPs after committing to a deal. A newer model, which OBridge is building, lets investors "pledge interest" on a deal before it happens: the LP commits to a check-size range in advance, so when the SPV forms, the capital pool is already indicated. This dramatically shortens the LP-recruitment window and reduces the risk that a deal falls apart mid-syndication.

Secondary SPVs. A quiet but growing corner of the market lets late-stage private company shareholders sell equity via SPV-wrapped secondary offerings, giving liquidity to early investors and employees without waiting for an IPO. Assure and Sydecar both offer this. Regulatory nuance is real (Rule 144 restrictions, tender offer rules, right-of-first-refusal negotiations), but the volume is growing quickly.

What we built on OBridge

OBridge separates discovery from execution. Discovery is where an investor finds a founder they want to back. Execution is the SPV, the wire, the closing. Every SPV vendor we described above solves the execution side beautifully. None of them solve the discovery side.

Founders on OBridge post their build, their traction, and their raise. Investors browse a live feed and pledge interest (with a check-size range) directly on startup profiles. When enough investor pledges accumulate to constitute a real round, the deal executes through an integrated SPV partner. The founder never has to leave the platform. The investor never has to email a syndicate lead. The syndicate lead's job (finding a good deal and recruiting LPs) becomes a background process on top of a discovery graph.

The vendors doing the execution work are, in our view, the best plumbing the venture industry has ever built. The missing layer is a founder-native surface that turns dispersed investor attention into aggregated warm demand. That is the layer we are working on.