# Market Street Partners

> Market Street Partners is a San Francisco investor-relations consultancy founded in 2000 by Carolyn Bass and JoAnn Horne. It works with public and pre-IPO growth companies - especially technology businesses - on investor narratives, earnings communications, market feedback, targeting, IPO preparation and other moments when management must explain a company under scrutiny. Its defining choice is structural: keep the firm small, limit each senior professional's client load and compete on financial fluency and candid outside perspective rather than agency scale.

- **Founded:** 2000
- **Headquarters:** San Francisco, United States
- **Founders:** Carolyn Bass (Partner and Co-Founder), JoAnn Horne (Partner and Co-Founder)
- **Team size:** Approximately 10-13 people based on public company and LinkedIn listings; Apollo data supplied for this profile lists 12 employees.
- **Products:** Custom investor-relations programs, Investor narrative and messaging, IPO readiness and execution support, Private-company market preparation, Investor targeting and perception work
- **Notable:** Operating since 2000 as an independent San Francisco investor-relations boutique., The firm says its professionals have advised more than 100 public and private companies., Its published client roster includes Google, Workday, Rivian, OneStream, nCino, JFrog, Upwork, Tableau and Equinix.

## Products & services

- **Custom investor-relations programs** — Full-program or standalone support for public companies, either as the primary IR resource or an adjunct to an internal team.
- **Investor narrative and messaging** — Development of a differentiated investment argument grounded in company operations, market position, financial metrics and investor feedback.
- **IPO readiness and execution support** — Bank and analyst introductions, peer and valuation analysis, disclosure training, road-show preparation, investor-site protocols and preparation for the first earnings release and call.
- **Private-company market preparation** — IR infrastructure, target relationships, public-market metrics, presentations, Q&A preparation and real-time feedback for companies approaching Wall Street.
- **Investor targeting and perception work** — Targeted outreach plus feedback on how investors understand a company, its peers and its opportunity.
- **Earnings and transaction communications** — Hands-on support around earnings materials, calls, M&A communications and other periods of concentrated market scrutiny.

## Achievements

- Operating since 2000 as an independent San Francisco investor-relations boutique.
- The firm says its professionals have advised more than 100 public and private companies.
- Its published client roster includes Google, Workday, Rivian, OneStream, nCino, JFrog, Upwork, Tableau and Equinix.
- Co-founder JoAnn Horne publicly identified OneStream as an MSP client following OneStream's 2024 IPO.
- Public filings and company releases document MSP personnel serving as investor-relations contacts for nCino, Model N, RPX and other listed companies across multiple years.

## Latest updates

- **2024-07** — Co-founder JoAnn Horne congratulated MSP client OneStream on its successful public-market debut.
- **2024-05** — A Model N investor-relations release named co-founder Carolyn Bass of Market Street Partners as the investor contact.
- **2024-02** — Carolyn Bass opened Model N's fiscal first-quarter earnings call as its investor-relations representative.

## Links

- Website: https://marketstreetpartners.com/
- LinkedIn: https://www.linkedin.com/company/market-street-partners

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Profile page: https://yespress.io/market-street-partners
Published by YesPress — https://yespress.io
Last updated: 2026-09-14