U
Upstream Bio
Biotech & Life Sciences · Waltham, United States · Founded 2021
Focuses on developing an antibody therapy for the treatment of severe asthma MoreLess
Upstream Bio is a biotechnology startup focused on developing innovative therapies to treat inflammatory and allergic diseases. The company operates in the biopharmaceutical market, targeting conditions that cause significant discomfort and health issues for patients. Their primary clients are healthcare providers and patients who suffer from chronic inflammatory conditions such as asthma and chronic rhinosinusitis with nasal polyps (CRSwNP).
The company's lead product, verekitug, is a monoclonal antibody designed to inhibit the TSLP receptor, a key player in the inflammatory process. Verekitug has successfully completed Phase 1b clinical trials for asthma and is currently in Phase 2 trials for both asthma and CRSwNP. Monoclonal antibodies are lab-made proteins that can bind to specific targets in the body, and in this case, verekitug aims to block the receptor that triggers inflammation.
Upstream Bio's business model revolves around research and development (R&D) of these specialized therapies. They invest heavily in clinical trials to ensure the safety and efficacy of their products. Once a therapy proves successful in clinical trials, the company can either bring it to market themselves or partner with larger pharmaceutical companies for distribution and commercialization. This approach allows them to generate revenue through product sales, licensing agreements, and potential milestone payments from partners.
The company is deeply committed to patient-centric values, ensuring that their work directly improves the quality of life for those suffering from inflammatory diseases. By focusing on the root causes of inflammation, Upstream Bio aims to provide long-term relief and better health outcomes for patients.
Keywords: biotechnology, inflammation, allergic diseases, monoclonal antibody, TSLP receptor, asthma, CRSwNP, clinical trials, patient-centric, biopharmaceutical.
Company overview
Upstream Bio company information
The essential company record, classifications and operating signals in one place.
- Status
- Operational
- Founded
- 2021
- Headquarters
- Waltham, United States
- Employees
- 82
- Open positions
- 4
- Dealroom signal
- 91.0
Valuation & funding
Upstream Bio funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| IPOOther financing | Oct 2024 | $293M | $1.1B | Undisclosed | ↗ |
| SERIES BOther financing | Jun 2023 | $200M | $800M | Omega Funds · Altshuler Shaham · Bain Capital Life Sciences · Venrock Healthcare Capital Partners | ↗ |
| SERIES AOther financing | Jun 2022 | $200M | $800M | Omega Funds · Altshuler Shaham · Access Biotechnology · OrbiMed | ↗ |
| SERIES AOther financing | Oct 2021 | $0 | — | HBM Healthcare Investments | — |
Financials
Revenue, earnings and profit over time
Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.
| Year | Revenue | Growth | EBITDA | Margin |
|---|---|---|---|---|
| 2026 | $2M | -28.5% | −$160M | -7851.6% |
| 2025 | $2.9M | +20.4% | −$160M | -5612.2% |
| 2024 | $2.4M | -0.4% | −$78M | -3277.4% |
| 2023 | $2.4M | +96.4% | −$40M | -1682.9% |
| 2022 | $1.2M | — | −$24M | -1972.1% |
Growth signals
Upstream Bio website traffic
Latest recorded traffic for Upstream Bio is 3.5K monthly website visits, down 37.5% over the last three months. Upstream Bio's team grew 20.6% over the past year.
Hiring
Open positions at Upstream Bio
Current openings linked to this company in Dealroom.
Comparisons
Upstream Bio compared with similar companies
Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.
Talent graph
Upstream Bio's talent
Source: Dealroom Talent Intelligence.
Global footprint
Where Upstream Bio has talent and traffic
team presence
In the news
Latest news about Upstream Bio
Recent press, funding announcements, and product moves mentioning Upstream Bio — open to read from the original sources.
Market sentiment
What the market is saying about Upstream Bio
An AI-synthesized read of the highest-engagement posts about Upstream Bio on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Upstream Bio’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.
















