Recombinant Protein CDMOs — Ranked by Signal Score
26
CDMOs tracked
13
Fully scored
7
With FDA records
17
FDA inspections
96
EMA/MHRA GMP certs
2
Warning letters
Recombinant protein CDMOs make therapeutic proteins, enzymes, and growth factors using microbial (E. coli, yeast) or mammalian (CHO) expression. Choice of host turns on post-translational modification needs, scale economics, and downstream-purification complexity.
Selecting a recombinant protein CDMO turns on host-system experience, validated bioreactor scale, downstream purification and analytics, and a clean regulatory record. The rankings below score each CDMO on FDA inspections, GMP certification, clinical activity, and capacity.
FDA inspection outcomes across these CDMOs: 3 NAI (no action), 13 VAI (voluntary action), 1 OAI (official action). Leading inspection & GMP sites: Germany (28), Denmark (18), United States (16), UNITED KINGDOM (11), UNITED STATES (9).
Last updated 2026-07-06. Sourced from FDA, EMA EudraGMDP, MHRA GMDP, and ClinicalTrials.gov.
| # | CDMO | Signal Score | Quality | FDA · GMP | Capacity | Programs |
|---|---|---|---|---|---|---|
| 1 |
KB
KBI Biopharma
Durham, NC · Boulder, CO
|
83.5 | 100.0 | 1 insp · 1 GMP | Limited | 0 programs |
| 2 |
RB
Richter BioLogics
Hamburg, Germany
|
82.9 | 100.0 | 0 insp · 9 GMP | — | 0 programs |
| 3 |
WK
Wacker Biotech
Jena, DE · Amsterdam, NL · San Diego, CA
|
81.6 | 100.0 | 0 insp · 13 GMP | — | 0 programs |
| 4 |
NW
Northway Biotech
Vilnius, LT; Waltham (MA), USA
|
80.8 | 100.0 | 0 insp · 8 GMP | Available | 0 programs |
| 5 |
AG
AGC Biologics
Longmont, CO · Milan, IT · Copenhagen, DK · Chiba, JP
|
80.6 | 99.9 | 1 insp · 23 GMP | Available | 2 programs |
| 6 |
RB
Rentschler Biopharma
Laupheim, Germany
|
79.9 | 99.3 | 1 insp · 2 GMP | — | 0 programs |
| 7 |
Lonza
Basel, Switzerland
|
78.2 | 95.1 | 2 insp · 8 GMP | — | 1 programs |
| 8 |
Catalent
Bagsværd, Denmark (operating under Novo Holdings)
|
76.5 | 79.3 | 10 insp · 32 GMP | — | 0 programs |
| 9 |
CA
Catalent (Novo Holdings)
Harmans, MD · Gosselies, BE
|
75.1 | 79.3 | 1 insp · 0 GMP | Available | 0 programs |
| 10 |
LZ
Lonza Biologics
Houston, TX · Portsmouth, NH · Geleen, NL · Basel, CH
|
72.8 | 95.1 | 1 insp · 0 GMP | Limited | 0 programs |
| 11 |
SB
Samsung Biologics
Incheon, South Korea
|
68.5 | — | — | — | 0 programs |
| 12 |
Cytovance Biologics
Oklahoma City, OK
|
61.5 | — | — | Available | 0 programs |
| 13 |
BN
Bionova Scientific
Fremont, CA
|
59.0 | — | — | — | 0 programs |
| — |
3P Biopharmaceuticals (now 3PBIOVIAN)
Pamplona-Noáin, Spain
|
Profiled | — | — | — | 0 programs |
| — |
BioCina
Adelaide, Australia
|
Profiled | — | — | — | 0 programs |
| — |
Icosagen
Tartu, Estonia
|
Profiled | — | — | — | 0 programs |
| — |
Altruist Biologics
Suzhou, China
|
Profiled | — | — | Available | 0 programs |
| — |
Olon Group
Rodano (Milan), Italy
|
Profiled | — | — | — | 0 programs |
| — |
53Biologics
Boecillo, Valladolid, Spain
|
Profiled | — | — | — | 0 programs |
| — |
Mabion S.A.
Konstantynów Łódźki, Poland
|
Profiled | — | — | — | 0 programs |
| — |
EirGenix
Zhubei City, Hsinchu County, Taiwan
|
Profiled | — | — | — | 0 programs |
| — |
Boehringer Ingelheim BioXcellence
Ingelheim am Rhein, Germany
|
Profiled | — | — | — | 0 programs |
| — |
Biological E. Limited (BioE)
Hyderabad, India
|
Profiled | — | — | — | 0 programs |
| — |
Kemwell Biopharma
Bengaluru, India
|
Profiled | — | — | — | 0 programs |
| — |
Kemwell Biopharma, Bangalore
Bengaluru, India
|
Profiled | — | — | — | 0 programs |
| — |
BE Biosol (formerly SGI Pharma / Biological E, Samirpet)
Hyderabad, India
|
Profiled | — | — | — | 0 programs |
What to evaluate in a Recombinant Proteins CDMO
Expression host & scale
Microbial hosts (E. coli, P. pastoris) suit non-glycosylated proteins; mammalian (CHO) is the workhorse for glycoproteins. Confirm validated bioreactor scale and the CDMO's experience with your target.
Purification & analytics
Downstream complexity (multiple chromatography steps, refolding for E. coli) drives cost and timeline. Ask about the orthogonal analytics package — purity, identity, potency.
Regulatory readiness
Clean FDA 483 history and EMA/MHRA GMP coverage matter — both are shown above and on each profile.
Capacity & commercial readiness
For programs heading to BLA, evaluate validated commercial scale and any approved-product track record.
Recombinant Proteins CDMOs — Frequently Asked Questions
Who are the top Recombinant Proteins CDMOs?
By CDMO Signal's independent Signal Score, the top-ranked Recombinant Proteins CDMOs include KBI Biopharma, Richter BioLogics, Wacker Biotech. See the full ranked table above — scored on FDA, clinical, financial, and capacity data.
How many Recombinant Proteins CDMOs have FDA inspection records?
CDMO Signal tracks 7 Recombinant Proteins CDMOs with FDA inspection records and 96 EMA/MHRA GMP certificates across the group.
What should I look for in a recombinant protein CDMO?
Confirm expression-host experience for your target (microbial vs mammalian), validated bioreactor scale, a strong downstream-purification platform, qualified analytics, and a clean FDA and EMA/MHRA record.
How is a recombinant protein CDMO different from a mAb CDMO?
There's significant overlap — mAbs are recombinant proteins. But mAb CDMOs are typically optimized for CHO-based platform processes, while general recombinant protein CDMOs handle a wider range of hosts and non-mAb formats (enzymes, growth factors, complex non-glycoproteins).
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