Biotech consulting — Maarssen, NL Est. 2026 — Independent

Independent scientific and strategic counsel for biotech.

A small, senior-led practice for founders, executives, and their investors. Founded by Patrick van Berkel after three decades in industry.

01  /  Practice

What we do.

Engagements are senior-led and deliberately scoped.

  1. 01
    Scientific due diligence

    Independent technical reviews of assets, platforms, and pipelines for venture, corporate development, and licensing decisions.

  2. 02
    Translational strategy

    Targets, biomarker plans, model selection, and the leap from in vivo data to first-in-human.

  3. 03
    CMC advisory

    Process development, analytical strategy, and CMC planning aligned to clinical and capital timelines.

  4. 04
    Pipeline prioritization

    Portfolio reviews built on probability of success, market reality, and capital efficiency.

  5. 05
    Investor & BD materials

    Decks, data rooms, and narrative support for fundraises, partnerships, and out-licensing.

02  /  Method

How we work.

Four moves, in order.

  1. 01
    Listen first

    The question behind the question. The hardest decisions are rarely the ones you arrived asking about.

  2. 02
    Diligence the data

    Primary literature, internal datasets, regulatory precedent, and adjacent programs — read carefully, stress-tested.

  3. 03
    Frame the choice

    Recommendations arrive with the trade-offs visible. You should be able to interrogate the logic, not take our word.

  4. 04
    Stay engaged

    The deliverable is rarely the end of the work. We stay close through execution when it matters.

03  /  Focus

Where the science is hardest.

Deep, not broad. Depth in a small number of areas beats surface knowledge across many.

  1. 01
    Oncology, Immunology and Inflammation
    Targeted therapies
  2. 02
    Platform modalities
    Antibodies · Protein biologicals · ADCs
04  /  Founder

Betulamab is a one-person practice by design. Every engagement is led by the founder.

Patrick van Berkel, PhD Founder & Principal
Experience
30+ years — start-up to mid-sized biotech
PhD
Protein engineering, University of Leiden
MSc
Chemistry, University of Nijmegen
Track record
Bench to clinic and market, multiple programs

Protein engineering — Betulamab's home ground.

Three decades in biotech across start-ups and mid-sized companies. Actively involved in advancing multiple programs from bench to clinic and market — the full arc, not just a phase.

Betulamab exists because good biotech decisions require both scientific depth and a working understanding of how programs actually move. The two are rarer in combination than they should be.

Clients are early-stage biotechs, growth-stage companies at major inflection points, and the investors who back them. Engagements are small in number, senior in delivery.

05  /  Contact

Get in touch.

A few sentences on the program, decision, or question is usually enough to start. Replies within two business days.

Direct is fine, and often faster: