Crosswalk BioVentures

Scientific collaboration

How we work
with scientists.

Scientific relationships are central to how we commercialize science.

Our approach is grounded in established relationships with scientists and scientific founders. We bring operating experience to the questions that connect discovery with a useful product: what has been demonstrated, what remains uncertain and what the next stage of development requires.

Illustrative scene of scientists discussing laboratory work together.
Tom Cirrito, PhD

Working with Dr. Cirrito

A scientist.
A company builder.

Dr. Tom Cirrito is a biotechnology founder and operator whose experience includes advancing an original therapeutic concept from preclinical development through FDA approval. He brings that experience to discussions about the experiments, development choices, people and resources needed to move a technology forward.

The scientist’s knowledge remains central. We work to understand the reasoning behind the results, discuss limitations candidly and connect the research with the practical decisions involved in building a company.

Prior development experience does not assure regulatory approval or commercial success for other technologies.

Meet Dr. Cirrito

Our framework

How we evaluate
and advance the work.

Company Mosaic

We look at a company as an interconnected whole: its scientific evidence, intellectual property, clinical and regulatory requirements, manufacturing, commercial need, leadership and financing.

These pieces are evaluated together to understand how a technology could become a viable business and what still needs to be built or tested. No single strength is considered in isolation.

Red Light:Green Light

We review the evidence before committing further time and capital. A green light supports moving to the next stage; a red light calls for pausing or reconsidering the plan.

Depending on what we learn, we may advance, modify, partner, delay or discontinue the work. Decisions use stage-appropriate milestones and criteria and are revisited as new information develops.

The process

From scientific evidence
to a development plan.

Every technology has its own path. Our development process connects scientific judgment with practical operating decisions.

  1. Understand the science and its intended use

    We consider the discovery, the problem it could address, its stage of development and the scientist’s objectives. This work begins within established professional relationships and provides the context for evaluating a potential path to commercialization.

  2. Examine the evidence

    We examine the results, methods, reproducibility and unanswered questions, with appropriate confidentiality protections. We consider relevant experience with analogous technologies while recognizing that each technology requires its own evidence.

  3. Define the next meaningful milestones

    We use the Company Mosaic to connect the science with intellectual property, development requirements, manufacturing, commercial need and financing. Together, we identify the work that could resolve the most important uncertainties, the resources required and the decisions those results would inform.

  4. Build the right company and relationships

    Depending on the opportunity, this may involve developing an existing company or forming a new one, recruiting leadership, engaging specialist resources and working with technology transfer offices or other rights holders. Proposed roles, intellectual property arrangements and commercial terms are addressed before commitments are made.

  5. Advance as the evidence develops

    Our Red Light:Green Light framework connects further development and capital commitments to stage-appropriate decision gates. Results may support advancing, refining, partnering, pausing or discontinuing a program. The development plan evolves with the evidence.

Last updated: October 28, 2026

Website Privacy Policy

Crosswalk Capital Ventures, LLC, doing business as Crosswalk BioVentures, and its affiliated entities, including Crosswalk Capital Ventures Fund 1 GP, LLC and Crosswalk Capital Ventures Fund 1 L.P., collectively referred to as “Crosswalk,” respect the privacy of visitors to www.crosswalkbioventures.com. This Website Privacy Policy explains the information we collect through the website, how we use and disclose it, and the choices available to website visitors. It applies only to the website and does not replace any privacy notice, subscription agreement, confidentiality agreement or other notice governing a separate relationship with Crosswalk.

Information collected through the website

The contact links on this website open your email application. This website does not collect or store contact-form submissions. If you email Crosswalk, we receive the information you choose to provide, which may include your name, title, organization, email address, telephone number, message content, meeting requests and attachments. Do not send taxpayer identifiers, bank information, account credentials, health information or other highly sensitive information by ordinary email.

When a visitor uses the website, Crosswalk and its service providers may automatically receive technical information such as internet protocol address, browser and device type, operating system, referring and exit pages, dates and times of access, pages viewed, approximate location derived from an internet protocol address, and security or diagnostic information.

How we use information

Crosswalk may use website information to operate, secure and improve the website; respond to inquiries; manage business relationships; evaluate service provider performance; maintain records; detect fraud, misuse and security incidents; comply with law and legal process; and protect Crosswalk, its investors, portfolio companies and other persons. Crosswalk will not use information submitted through the website as an agreement to invest, an investment instruction or authorization to transact.

How we disclose information

Crosswalk may disclose website information to hosting, security, communications and other service providers that support the website or Crosswalk’s operations; to professional advisers, insurers, regulators, governmental authorities, courts or law enforcement; in connection with a reorganization, financing, transaction or transfer of relevant operations; or when reasonably necessary to protect rights, security, systems or persons. Service providers are authorized to process information only for the services they provide or as otherwise permitted by their agreements and applicable law. Crosswalk does not sell personal information and does not share personal information for cross-context behavioral advertising as those terms are defined under applicable state privacy law.

Cookies and similar technologies

The current website code contains no analytics, advertising pixels, tracking cookies or local storage. Hosting and security providers may process technical information to operate and protect the website. Technologies necessary for security, network management, accessibility, user preferences or basic website operation may be used by those services. If Crosswalk enables analytics, advertising or other nonessential technologies, it will update this policy and provide any notice, consent or preference tool required by applicable law. Browser settings may allow a visitor to block or delete cookies, but doing so may affect website functionality.

Email and business communications

If a visitor asks to receive communications, Crosswalk may use the information provided to respond and to send relevant business information. A recipient may use an unsubscribe mechanism included in a promotional email or contact Crosswalk to change communication preferences. Crosswalk may continue to send communications that are legally required or necessary to administer an existing relationship.

Security and retention

Crosswalk uses administrative, technical and physical safeguards designed to protect information in light of its sensitivity and Crosswalk’s operations. No website, transmission or storage system can be guaranteed to be completely secure. Crosswalk retains website information for as long as reasonably necessary for the purposes described in this policy and to satisfy applicable legal, regulatory, tax, accounting, contractual, security and recordkeeping requirements, after which it is deleted, destroyed or deidentified as appropriate.

Privacy requests

A person may contact Crosswalk to request access to or correction or deletion of personal information, or to exercise another right provided by applicable law. Crosswalk will verify the requester’s identity and authority and will apply the rights, limitations and exceptions governing the request. Crosswalk may retain information when required by law, contract, litigation hold, regulatory obligation, security need or legitimate recordkeeping purpose. To submit a request, contact amy@crosswalkbioventures.com.

Third party websites

The website may link to websites or services operated by third parties, including LinkedIn. Crosswalk does not control those services and is not responsible for their privacy or security practices. A visitor should review the privacy terms of the relevant third party before providing information.

Children

The website is intended for business and professional audiences and is not directed to children under 13. Crosswalk does not knowingly collect personal information from children through the website. A parent or guardian who believes a child has provided information may contact Crosswalk to request review and appropriate action.

Securities and investment information

Website content is provided for general informational purposes. Nothing on the website constitutes an offer to sell or a solicitation of an offer to purchase an interest in any fund or security, investment advice, or a recommendation. Any offering will be made only through authorized offering documents and only in jurisdictions and to persons for whom the offering is lawful. Providing information through the website does not create an advisory, fiduciary, investor or other client relationship with Crosswalk.

Changes to this policy

Crosswalk may revise this Website Privacy Policy to reflect changes in the website, information practices or legal obligations. The revised policy will state the date of the most recent update. Crosswalk will provide additional notice when required by applicable law.

Contact

Questions or requests concerning this Website Privacy Policy may be directed to:
Crosswalk Capital Ventures, LLC
Attention: Chief Compliance Officer
4220 Duncan Avenue, Second Floor
St. Louis, MO 63110
amy@crosswalkbioventures.com