Carbon Collective Investing provides portfolio management for individuals and small businesses, portfolio management for investment companies, portfolio management for pooled vehicles, and portfolio management for institutions.
Carbon Collective Investing reports 1,359 clients. They include 1,216 individuals, 139 pension and profit-sharing plans, and 2 investment companies. Of its assets, 100.0% ($348M across 1,292 accounts) are managed with discretion. A wrap fee program the firm both sponsors and manages holds $666M.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 89% | 18% |
| Investment companies | <1% | 18% |
| Pooled investment vehicles | <1% | 18% |
| Pension and profit-sharing plans | 10% | 46% |
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 1,216 | $62.3M | 17.9% | $51.3K |
| Investment companies | 2 | $63.1M | 18.1% | $31.5M |
| Pooled investment vehicles | 2 | $63.3M | 18.2% | $31.6M |
| Pension and profit-sharing plans | 139 | $160M | 45.8% | $1.15M |
| Total | 1,359 | $348M | 100% | $256K |
- Clients
- 1,216
- Regulatory AUM
- $62.3M
- AUM share
- 17.9%
- Avg. per client
- $51.3K
- Clients
- 2
- Regulatory AUM
- $63.1M
- AUM share
- 18.1%
- Avg. per client
- $31.5M
- Clients
- 2
- Regulatory AUM
- $63.3M
- AUM share
- 18.2%
- Avg. per client
- $31.6M
- Clients
- 139
- Regulatory AUM
- $160M
- AUM share
- 45.8%
- Avg. per client
- $1.15M
Total
- Clients
- 1,359
- Regulatory AUM
- $348M
- AUM share
- 100%
- Avg. per client
- $256K
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 0
Carbon Collective Investing is paid through a percentage of assets under management and fixed fees (other than subscription fees); its fees and minimums are set out in its brochures on the SEC website.
Osmo Systems, Inc owns 75% or more of Carbon Collective Investing and is in turn owned by Zachary Stein (25–50%) and James Regulinski (25–50%). The leadership team of Carbon Collective Investing includes Chief Compliance Officer James Regulinski. It has 4 employees.
Staff
- 4 employees
- 4 in advisory functions
- 4 state-registered reps
- Owns 75% or more of Carbon Collective Investing, LLC
Osmo Systems, Inc
Control person · since July 2020
- Owns 25% to 50% of Osmo Systems, Inc
Zachary Stein
Control person · since November 2014
- Owns 25% to 50% of Osmo Systems, Inc
James Regulinski
Control person · since March 2016
Carbon Collective Investing’s regulatory assets grew 79.7× from $4.37M (June 2021) to $348M (March 2026); clients rose from 126 to 1,359 and employees from 3 to 4.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | StaffEmployees | Offices |
|---|---|---|---|---|
| Mar 2026March 2026 | $348M | 1,359 | 4 | 1 |
| Jun 2025June 2025 | $233M | 1,306 | 5 | 1 |
| Jul 2024July 2024 | $123M | 1,136 | 7 | 1 |
| Apr 2023April 2023 | $45.7M | 900 | 6 | 1 |
| Mar 2022March 2022 | $20M | 377 | 5 | 1 |
| Jun 2021June 2021 | $4.37M | 126 | 3 | 1 |
Besides its headquarters, Carbon Collective Investing has 0 offices, with 1 listed address in 1 state.
California · 1 listed address
- 2648 International BLVD, Ste 301, OaklandHQ
Contact and registration details
- Legal name
- Carbon Collective Investing, LLC
- Headquarters
- 2648 International BLVD, Ste 301, Oakland, CA 94601
- Website
- carboncollective.co
- Phone
- 925-268-8041
- @carbon-collective
- SEC file
- 801-119296
- Structure
- Delaware LLC
- Fiscal year end
- December
Carbon Collective Investing’s named custodians for separately managed accounts include Matrix Trust ($94.7M, 42%), Altruist ($62.8M, 28%) and Ascensus Trust ($49.2M, 22%). Carbon Collective Investing does not have custody of client assets.
- AltruistAltruist Financial LLC · Culver City, CA · $62.8M28%
- Ascensus TrustAscensus Trust Company · Fargo, SD · $49.2M22%
- Matrix TrustMatrix Trust Company · Denver, CO · $94.7M42%
- EmpowerEmpower Trust Company, LLC · Greenwood Village, CO · $7.35M3%
- Standard InsuranceStandard Insurance Company · Portland, OR · $10.7M5%
- OtherAdp Strategic Plan Services, Mid Atlantic Clearing & Settlement1%
At year end, Carbon Collective Investing’s separately managed accounts were mostly in stocks (66%) and bonds (18%).
What the accounts hold
- Stocks66%
- Funds6%
- Bonds18%
- Cash10%
How many clients does Carbon Collective Investing have?
Carbon Collective Investing has 1,359 clients and manages $348 million for them, as of March 2026. They include 1,216 individuals, 139 pension and profit-sharing plans, and 2 investment companies.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 25 March 2026
What services does Carbon Collective Investing offer?
Carbon Collective Investing provides portfolio management for individuals and small businesses, portfolio management for investment companies, portfolio management for pooled vehicles, and portfolio management for institutions.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file
Which custodians does Carbon Collective Investing use?
Carbon Collective Investing’s separately managed account assets are held at Matrix Trust Company (Denver, CO), with $94.7M, Altruist Financial LLC (Culver City, CA), with $62.8M, Ascensus Trust Company (Fargo, SD), with $49.2M, Standard Insurance Company (Portland, OR), with $10.7M, Empower Trust Company, LLC (Greenwood Village, CO), with $7.35M, Adp Strategic Plan Services (Roseland, NJ), with $1.39M and Mid Atlantic Clearing & Settlement Corporation (Dubuque, IA), with $1.03M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 25 March 2026
How many financial advisors does Carbon Collective Investing have?
Carbon Collective Investing has 4 investment adviser representatives registered with state securities authorities, out of 4 employees, and 4 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Carbon Collective Investing invest in?
At the end of its last fiscal year, Carbon Collective Investing’s separately managed accounts held 66% exchange-traded equities, 18% investment grade corporate bonds, 10% cash and equivalents and 6% registered funds (mutual funds, ETFs, BDCs).
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Carbon Collective Investing?
Carbon Collective Investing is owned through a holding company by Zachary Stein and James Regulinski. Its direct owner is Osmo Systems, Inc (75% or more).
Source: Form ADV Part 1A, Schedules A and B, filed 25 March 2026
How does Carbon Collective Investing get paid?
Carbon Collective Investing is paid through a percentage of assets under management and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
How do I contact Carbon Collective Investing?
Carbon Collective Investing’s main office is at 2648 International BLVD, Ste 301, Oakland, CA 94601. Its phone number is 925-268-8041. Its website is carboncollective.co.