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Kolabtree is an online marketplace where clients post a project and freelance scientists and industry experts send quotes. It is run by Cactus Communications Limited (UK), according to its own homepage. This page is for graduate students, early-career researchers and lab or project managers who want to know what the platform does, how its project flow works, and what to settle before hiring outside help on research work. Facts below come from Kolabtree’s own homepage and help center, read on 2026-11-07, unless stated otherwise.
What Kolabtree is
Kolabtree describes itself as a way to “work with our network of scientists and industry experts.” It is a hiring marketplace, not a journal, a publisher or a research funder. The expertise areas it lists on its homepage include medical writing, data science, regulatory affairs, product formulation, statistical analysis and literature search.
Who runs it and how large it says it is
The homepage names Cactus Communications Limited (UK) as the operator. The figures below are Kolabtree’s own marketing statistics, not independently audited numbers, and they were as displayed on 2026-11-07:
- 20,000+ scientists and experts
- Trusted by 2,500 businesses
- 20,000+ projects posted
- Freelancers in 175+ countries
- 4.7 average freelancer rating
How a project works
The homepage summarises the client flow in three steps (post a project, collaborate, approve). The help center’s category pages show the interface terms used at each stage.
- Post a project. The homepage says a project can be public or private, and that you then receive quotes. The help center has a “Starting a Project” section, including an article on the privacy options available.
- Choose an expert. The help center has an article titled “How to Select the Right Expert?” and one on personally inviting experts you found on the “Browse Experts” page.
- Accept the SOW. Hiring follows acceptance of a statement of work (SOW), covered in the help center’s “Making the Payment” section.
- Collaborate. Kolabtree says you can talk to experts before starting, that messages and files sit in secure workspaces, and that NDAs are available with experts.
- Pay and manage. The help center covers fixed-price projects, milestones, revising a fee and switching between fixed-rate and hourly-rate projects.
- Approve. The homepage says you approve the work only once you are satisfied. A help article addresses what happens if a client is not satisfied with the deliverables.
Kolabtree also lists an optional service called Kolabtree Assist, with its own help articles. Ownership of deliverables has dedicated articles (“Who owns the IP of the work?”); read the current wording there before you sign a scope, because ownership terms govern your later use of the work. The sign-in is among the links on kolabtree.com; the help center has a password-reset article.
Charges and fees
The homepage states “No minimum fee or commitment required.” The one charge the help center article “What charges will I have to bear?” spells out is on the freelancer side: a 2% forex conversion charge on each transfer a freelancer receives from Kolabtree, with any intermediary bank charges borne by the freelancer and bank transfer fees to freelancers borne by Kolabtree. That article lists no client charges. Because other fees are not stated there, ask for the total cost in writing in the project quote rather than relying on third-party figures.
Strengths and limits
| Point | What the platform states |
|---|---|
| Scope of expertise | Lists medical writing, data science, regulatory affairs, product formulation, statistical analysis and literature search |
| Commitment | “No minimum fee or commitment required” |
| Confidentiality tools | NDAs with experts; messages and files in secure workspaces |
| Client control | Public or private projects; approve work only once satisfied |
| Scale and ratings | Self-reported (see figures above); not independently verified |
One limit follows from what a marketplace is: it connects you with an expert, while responsibility for your research design, data handling and published claims stays with you and your institution. This page does not rate Kolabtree.
Scam warning for freelancers
Kolabtree states that people posing as Kolabtree recruiters contact freelancers through social media or messaging apps and ask for payment. It says it offers jobs only through kolabtree.com and from @kolabtree.com email addresses.
Authorship and disclosure when you hire outside help
Paying an expert does not settle who counts as an author. The ICMJE recommends that authorship rest on substantial contribution, drafting or revising the work, final approval and accountability for it; people who contribute but do not meet those criteria are acknowledged instead. If a freelancer writes or analyses substantially, decide before the work starts how the contribution will be credited. See ghost authorship, acknowledgments sections and medical writer contribution for how unlisted writing help is treated, and statistical consultancy for analysis support.
- Disclose a paid relationship where the journal or funder asks for it; see conflict of interest disclosure.
- Check your institution’s data-sharing and consent terms before giving a third party access to files. A non-disclosure agreement covers confidentiality but does not replace approvals your institution requires.
- Kolabtree’s help center has a freelancer-side article on whether projects related to student coursework can be taken; check it before posting any coursework-linked request.
Alternatives
| Platform | How its own page describes it |
|---|---|
| Kolabtree | Expert marketplace: post a project, receive quotes from scientists and industry experts |
| Science Exchange | Describes centralizing R&D research operations: finding research partners, handling contracts, managing compliance and paying providers under a single master agreement |
Science Exchange wording read on scienceexchange.com, 2026-11-07. General freelance marketplaces such as Upwork also exist; read their own terms directly. This page makes no comparison of fees or vetting between platforms.
FAQ
What is Kolabtree?
A marketplace run by Cactus Communications Limited (UK) where clients post projects and freelance scientists and experts respond with quotes.
Is Kolabtree free to use?
Kolabtree says no minimum fee or commitment is required. The help center states a 2% forex charge on freelancer transfers and lists no client charges in that article, so confirm total cost in your quote.
Where do I find the sign-in?
Among the links on kolabtree.com. The help center covers password resets.
Is Kolabtree legit, and what do reviews say?
This page gives no verdict. Kolabtree’s own statistics are self-reported. Read the help center terms and decide against your institution’s rules.
How is Kolabtree different from Upwork?
Kolabtree focuses on scientists and industry experts, per its homepage. Read each platform’s own terms for fees and protections.
Can I find jobs on Kolabtree as a freelancer?
Experts create a profile and submit proposals to client projects; the help center has articles on profiles, proposals and receiving payment. Kolabtree says it offers jobs only through kolabtree.com and @kolabtree.com emails.
Sources
- Kolabtree homepage, read 2026-11-07
- Kolabtree help center, including “What charges will I have to bear?”, read 2026-11-07
- Science Exchange, read 2026-11-07
- ICMJE: Defining the Role of Authors and Contributors
