S28 Capital (formerly Spectrum 28) is an early-stage venture capital firm based in San Francisco. Founded in 2016 by Kent Ho and Lyon Wong, the firm invests in startups disrupting long-standing industries across finance, genomics/digital health, real estate/construction, and emerging technology.
They made 2 investments in the last 12 months. Average disclosed round size is $32.0M (across 27 rounds with reported amounts).
Portfolio
23
Fund Size
$170M
Top Stage
Series A
Last 12 Mo
2
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
28 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Precede Biosciences | Series B | $63.5M | Jan 2026 |
 rudderstack | Series C | $56M | Oct 2025 |
 Lightup Data | Series A | $9M | Aug 2023 |
 Tenzo | Series A | $5M | May 2023 |
 Coefficient | Series A | $18M | Nov 2022 |
 Teleport | Series C | $110M | May 2022 |
| rudderstack | Series B | $56M | Feb 2022 |
 Teleport | Series C | $110M | Jan 2022 |
 OpsLevel | Series A | $15M | Jan 2022 |
 Panther | Series B | $120M | Dec 2021 |
| Coefficient | Seed | $6.7M | Oct 2021 |
| RRhumbix Com | Series B | $14.3M | Sep 2021 |
 CaptivateIQ | Series B | $46M | Apr 2021 |
 slapdash | Seed | $3.7M | Mar 2021 |
| Panther | Series A | $15M | Sep 2020 |
| AAcquire.io | Unknown | $5.4M | Nov 2019 |
 Mattermost | Series B | $50M | Jun 2019 |
 Aurora Solar | Series A | $20M | Feb 2019 |
 Outschool | Seed | $1.4M | Jun 2017 |
 Social Construct | Unknown | $17M | Jan 2017 |
 CodeStream | Seed | $3.2M | — |
 Unfolded | Seed | $6M | — |
| OpsLevel | Seed | $5M | — |
| CCoefficient Works, Inc. | Series A | $18M | — |
| MMattermost, Inc. | Series B | $50M | — |
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Top Co-Investors
Y Combinator6 shared
Battery Ventures5 shared
Insight Partners4 shared
Shasta Ventures3 shared
Foundation Capital3 shared
Redpoint Ventures3 shared
Innovation Endeavors2 shared
Lightspeed Venture Partners2 shared
Kleiner Perkins2 shared
Bessemer Venture Partners2 shared
Webb Investment Network2 shared
Union Labs2 shared
Singtel Innov82 shared
Granite Hill Capital Partners2 shared
Learn Capital1 shared
FundersClub1 shared
SV Angel1 shared
Revel Partners1 shared
Incubate Fund1 shared
Energize Capital1 shared
Last updated: 8 September 2026