# Samuel L. Duboc

> Samuel L. Duboc is a pre-seed investor at EdgeStone Partners (Toronto) backing Legal and Medical. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [EdgeStone Partners](https://shizune.co/investors/profile/edgestone-partners)
- Location: Toronto, Canada
- Total investments: 2
- Last investment: Oct 2021
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/sam-duboc-b510a527
- Website: https://x.com/slduboc/media

Samuel L. Duboc is a pre-seed investor at EdgeStone Partners in Toronto focused on Legal and Medical. Sam founded EdgeStone in February 1999. From 1994 to 1999, he served as Managing Director and member of the Deals Review Committee at CIBC Capital Partners, the merchant banking division of CIBC. At CIBC Capital Partners, he successfully invested in a wide variety of industries including, among others, media, retail, restaurants and agriculture.From 1991 to 1994, he co-founded and developed the Loyalty Group Inc. (Air Miles Reward Program), Canada's most successful loyalty database marketing program, and served as COO. From 1990 to 1991, he served as COO of Holzman Jewellers, a U.S. based privately owned jewelry chain. From 1984 to 1990, he worked at Bain & Company.Sam serves on the Board of Directors of EZShield, New Food Classics, Porter Aviation Holdings, Stephenson’s Rental Services, and Bryker Technology Partners LP. He is a former director of Alliance Films, BFI Canada, Richards Packaging, Trimaster Manufacturing, Solace Systems and Hair Club Group. He holds a Bachelor of Science degree in Chemical Engineering from Tufts University magna cum laude and a M.B.A. from Harvard Business School. He was recognized in 2000 as one of Canada's Top 40 Under 40 and named one of the "Most Influential" alumni of the program in 2005; was nominated for the Ernst & Young Entrepreneur Of The Year® Award in 2006 and in 2007 and is a member of the Young President's Organization (YPO). Sam is Chairman of the Board of Pathways to Education Canada, a member of the Board of Directors of the CAMH Foundation and a member of the Toronto City Summit Alliance Steering Committee.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Legal | 1 | 50% |
| Medical | 1 | 50% |
| Software | 1 | 50% |
| Legal Tech | 1 | 50% |
| Health Care | 1 | 50% |

7 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Pre-Seed | 1 | 50% |
| Convertible Note | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Lawbrokr | Lawbrokr is a legal tech company focused on helping law firms pre-screen new leads so they don't waste time on consultations with prospects that aren't a fit.Lawbrokr provides a unique link that can be placed on a firm’s website and everywhere else that consumers search for lawyers. The link connects the legal consumer to a set ofqualifying questions crafted by the firm. With just a few clicks, the consumer gains an understanding of the services offered, and the firm can determine whether the prospective client is a fit for them. This allows the firm to invest its time into qualified prospects rather than dead end consultations. | $629.4K | Pre-Seed | Oct 09, 2021 |  |
| ManagingLife | ManagingLife's industry-leading digital health solution, Manage My Pain, helps patients and doctors better measure, monitor, and manage pain. Manage My Pain is a digital pain treatment companion with clinical validation and has one of the largest datasets that includes over 5M patient-reported pain outcomes from over 125,000 users from 130countries. Built into Manage My Pain is Solace, a first-of-its-kind AI companion that delivers real-time, evidence-based pain psychology support - which showed significant improvements in people who interacted with it for just 30 minutes.Manage My Pain is the leading pain app on the market, and has been licensed by hospitals and insurers across North America. Manage My Pain improves patient outcomes, reduces medical spend, and shortens disability claims. | $670K | Convertible Note | Dec 31, 2019 |  |

2 of 2 investments shown.

## Co-investors
- [Bryker](https://shizune.co/investors/profile/bryker) — VC Fund, 2 deals together
- [Fraser Kearney Capital Corp.](https://shizune.co/investors/profile/fraser-kearney-capital-corp) — VC Fund, 1 deal together

## About EdgeStone Partners

VC Fund · Toronto, Canada

EdgeStone Partners is a private equity and venture capital arm of GMP Securities, specializing in direct investments and fund of funds investments. It seeks to make private equity, mezzanine, and venture capital investments in middle market, seed/startup, early venture, mid venture, late venture, industry consolidation, recapitalizations,roll-up strategy, management buy-in or buy-out, divestiture of non-core business and growth capital stages Within direct investments. EdgeStone Partners seeks to invest in venture capital funds and private equity funds within fund of fund investments. It specializes in investments in venture capital and buyout funds through its fund of funds. EdgeStone Partners manages and invests through its funds, Later Stage Equity (EdgeStone Capital Equity Fund); Mezzanine Debt; Energy Capital (EdgeStone Capital Energy Fund), and Venture Capital (EdgeStone Capital Venture Fund) funds. It prefers to invest in light manufacturing, business, and consumer and financial services. EdgeStone Partners seeks to invest in companies based in North America with a focus on Canada. It seeks to invest in Canada and focuses on primary investments, with a limited amount of capital allocated to secondary investments. It typically invests between $5 million and $15 million. EdgeStone Partners seeks to invest in companies with EBITDA range of $10- $50 million and Enterprise Value range of $50- $250 million. It seeks to invest in equity and equity related securities, and prefers majority ownership/control positions and active board involvement in its portfolio companies and targets an IRR of 20 percent to 25 percent per year. EdgeStone Partners exits an investment within a period of three to seven years. It preferred exit options include: sale to a strategic or financial buyer; share re-purchase by the company; initial or secondary public offering; and financial restructuring and targets an IRR of 40 percent. It prefers to invest between Cdn $25 million ($22.14 million) and Cdn $60 million ($53.15 million) and more through the Later Stage fund. EdgeStone Partners seeks to make subordinated debt, preferred share, and related equity investments in buyouts, going private transactions, growth capital financings, expansion capital, and acquisitions of middle market and later stage private and public companies through the Mezzanine Debt fund (EdgeStone Capital Mezzanine Fund). It seeks to invest in companies based in North America through the mezzanine fund. EdgeStone Partners typically invests between Cdn $10 million ($8.85 million) and Cdn $40 million ($35.43 million) in its portfolio companies and also considers higher investments. It seeks an IRR between 15 percent and 20 percent and exits its investment within a period of three to seven years. The fund also prefers to take a seat on the Board of Observers of its portfolio companies. Through its Energy Capital (EdgeStone Capital Energy Fund), the firm makes acquisition and organic growth investments in small and mid-sized public and private companies. The firm seeks to make equity and equity related investments in the exploration, production, and service sectors of the energy industry, oil and gas, and other energy-related sectors through the Energy Capital fund. EdgeStone Partners primarily invests in companies based in Western Canada. It prefers to invest $5 million to $10 million per transaction. EdgeStone Partners seeks to invest in common equity or equity-related securities, such as preferred shares or convertible debt. It seeks to exit its investments in three to five years; has an Observer attend at all the board meetings of portfolio companies. EdgeStone Partners seeks to invest in early and mid- stage technology companies through its Venture Capital fund (EdgeStone Capital Venture Fund). It seeks to invest in companies that sell technology solutions to the enterprise and where the intellectual property resides in the software. EdgeStone Partners typically invests between Cdn $3 million ($2.59 million) and Cdn $10 million ($8.65 million) in its portfolio companies. It typically holds its investments for three to five years, targets an IRR of 40%, and it also makes co-investments. EdgeStone Partners also seeks membership on the Board of Directors of its portfolio companies. It seeks to invest in the telecommunications and other high technology sectors. EdgeStone Partners began operation in February 1999. It has its headquarters in Toronto in Canada with additional offices in Montréal and Calgary in the same country.

5 contacts available at EdgeStone Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Bryan W. Kerdman | Partner | https://shizune.co/investors/profile/bryan-w-kerdman |
| Gilbert S. Palter | Chief Investment Officer and Managing Partner | https://shizune.co/investors/profile/gilbert-s-palter |
| Samuel L. Duboc | President and Managing Partner | https://shizune.co/investors/profile/samuel-l-duboc |
| Andrew Walton | Principal | https://shizune.co/investors/profile/andrew-walton |
| Sandra Bosela | Partner | https://shizune.co/investors/profile/sandra-bosela |

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## FAQ

### What does Samuel L. Duboc invest in?

Samuel L. Duboc invests primarily in Legal, Medical and Software startups, most often at Pre-Seed and Convertible Note stage. Most of the 2 investments tracked by Shizune back companies in Canada. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Samuel L. Duboc last invest?

The most recent investment recorded for Samuel L. Duboc closed in Oct 2021. Shizune tracks 2 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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