Fundraising Fox

TrialSpark

Unicorn Β· $1B

New York, US Β· Founded 2013 Β· Delaware corporation Β· 13 known investors

trialspark.com β†—

Formation Bio develops drugs alongside research site partners, including health systems, academic medical centers, and independent research sites, with a focus on accelerating clinical trials in dermatology, rheumatology, and cardiometabolic diseases. The company provides technology solutions, monitoring services, and enrollment support to streamline the drug development process.

Also known as Formation Bio Β· Trialspark Β· TrialSpark, Inc.

AI & Machine LearningBiotechHealthtechMedical DevicesSaaS

Founders & leadership

TrialSpark was founded in 2013 by Linhao Zhang and Benjamine Liu.

LZLinhao Zhang
Linhao ZhangCo-Founder
BL
Benjamine LiuCo-founder

Board

ALAlfred Lin
Alfred Linin𝕏Board directorPartner at Sequoia Capital
MMMichael Moritz
Michael Moritzin𝕏Board directorFormer Partner at Sequoia Capital; Senior Adviser at Sequoia Heritage
SKScott Kupor
Scott Kuporin𝕏Board directorManaging Partner at Andreessen Horowitz

Investors Β· 13

Also in the syndicate Β· 6

ArrowmarkDragoneerEmerson CollectiveFPV VenturesJohn DoerrSanofilead

Reported raises Β· per SEC filings

Form D private placements

$372.2M disclosed across 1 of 2 rounds Β· 2021–2024

β–Ά$372.2MraisedJul 2024 Β· 16 investors Β· Pharmaceuticals
Rule 506(b)
Officers, directors & promoters on the filing
  • Alfred LinDirector
  • Linhao ZhangExecutive Officer, Director
  • Michael MoritzDirector
  • Scott KuporDirector
  • Benjamine LiuExecutive Officer, Director
Offering amount
$512M
Amount sold
$372.2M
First sale
May 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR β†—

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

Formation Bio, formerly named TrialSpark, is a technology-driven pharmaceutical company headquartered in New York, NY. Rather than focusing on drug discovery, it acquires or in-licenses clinical-stage assets from pharmaceutical companies, biotechs and universities and develops them through a proprietary, AI-native drug development platform intended to reach clinical inflection points faster and at lower cost than industry norms. The company describes deal structures as flexible, spanning acquisition, in-licensing, co-development, joint ventures and NewCos, and has also used capital to invest in biotech companies holding drug candidates ready for development.

The original TrialSpark product was a software platform that integrated the front end of clinical trials (patient recruitment, eConsent, eSource) with the back end (data management, monitoring and biostatistics) to eliminate siloed study data. The company has acted across the clinical trial value chain in roles including recruitment vendor, technology partner, trial site manager and CRO, and by 2024-2025 had supported hundreds of studies. Its stated positioning contrasts with the traditional model in which sponsors outsource trials to contract research organizations on a cost-plus, billable-hour basis, which company leadership argues incentivizes longer and costlier trials.

As of the sources, the team and advisors had been involved in over 75 regulatory submissions (as of May 2024) and more than 45 approved drugs (as of April 2025). The company frames its market thesis around a widening gap between accelerating drug discovery output and the rising cost of clinical development, citing full drug development costs of roughly $800 million to $2.3 billion as of 2024 and Phase 3 programs costing over $100 million as of 2025.

Founding story

Public sources report that the company was founded as TrialSpark in 2016 by Benjamine (Ben) Liu, who became CEO, together with Linhao Zhang and Kit Dobyns (Contrary Research dates the founding to June 2013 in its profile header while describing a 2016 founding in the narrative; internal records date founding to 2013). Liu, an immigrant from Taiwan, earned a B.S. in biology from Yale, an M.Phil. in computational biology from the University of Cambridge as a Paul Mellon Scholar, and a D.Phil. at the University of Oxford as a Rhodes Scholar. During his graduate research he identified candidate drugs, including for Parkinson's disease, and found that pharmaceutical companies declined to advance them because they lacked bandwidth and resources for additional trials rather than for scientific reasons; he concluded the bottleneck in drug development had moved from discovery to clinical execution. He co-founded the company while still completing his doctorate. Zhang, a computer science graduate of the University of Texas at Austin and a former engineer at Salesforce and Oscar Health, served as CTO and later as COO. Dobyns studied at Cornell University and was also a Rhodes Scholar at Oxford; he and Liu were assigned as roommates during Rhodes pre-orientation, while Dobyns and Zhang had met as roommates during a Salesforce internship.

Business model

The company acquires or in-licenses clinical-stage drug assets from pharmaceutical companies, biotechs and universities and develops them in-house using its own trial platform, aiming to capture greater value per program by reaching development inflection points earlier. Deal structures cited include acquisition, in-licensing, co-development, joint ventures and NewCos, plus investment in biotech companies with drug candidates ready for development. Historically it also provided services across the trial lifecycle as a recruitment vendor, technology partner, site manager and CRO.

Sources do not state a definitive revenue model; the company positions itself as an asset owner/developer of in-licensed clinical-stage drugs rather than a cost-plus, billable-hour contract research organization. Growjo lists an estimated (not company-reported) annual revenue of $36 million.

Traction

Supported hundreds of studies across the clinical trial timeline in roles ranging from recruitment vendor and tech partner to site manager and CRO (as of 2024-2025). Team and advisors involved in over 75 regulatory submissions as of May 2024 and over 45 approved drugs as of April 2025. Company materials from the 2021 Series C claimed 50% faster study timelines and 95% of patients unlocked who were previously unreached by clinical trials. Employee counts reported range from 110 (Forbes, August 2022) to 193 (Contrary Research) and 232 (Growjo estimate).

Latest developments

Mike Ehlers joined as Chief Scientific Officer and Head of R&D (announced on the company website). The company now operates under the Formation Bio name and describes itself as an AI-native pharma company acquiring and developing clinical-stage assets through flexible structures and financing pathways. Contrary Research's profile, updated January 22, 2026, lists the company as private at Series D stage with total funding of $528 million and 193 employees.

β–ΈFull profile β€” market position, technology, go-to-market, geography, history, risks & controversies

Market position

Positioned as a tech-enabled or 'next-generation' pharma company competing with the traditional sponsor-plus-CRO model of clinical development. Contrary Research classifies it under AI/ML and Biotech, private, at Series D stage. Forbes reported in August 2022 that the company was valued at over $1 billion; Growjo also lists a $1 billion valuation.

Owns and develops the drug assets it runs trials for rather than selling trial services on a cost-plus, per-billable-hour basis as CROs do, which management argues removes incentives for longer, costlier trials. It combines an integrated front-end/back-end trial technology stack and AI with a team and advisor base credited with 45+ approved drugs and 75+ regulatory submissions.

Technology

A proprietary, AI-native drug development platform. The original TrialSpark platform integrated the front end of clinical trials (patient recruitment, eConsent, eSource) with the back end (data management, monitoring, biostatistics) to remove siloed study data, and was described as providing real-time data access, innovative trial design and operational agility.

Go-to-market

Partnering and asset-acquisition driven: the company solicits partnerships to in-license or acquire clinical-stage drugs and has executed collaborations with large pharmaceutical companies including Novartis and Sanofi. Its website invites prospective partners to make contact directly.

Pharmaceutical companies, biotechnology companies and universities holding clinical-stage assets they lack capacity to develop, as well as partners seeking accelerated clinical development; patients are the ultimate beneficiaries of the developed treatments.

Geography

Headquartered in New York City, with a team described in 2021 as growing across all departments in New York City and remotely.

History

Founded as TrialSpark, the company first built clinical trial software and operated as a technology-enabled CRO. In December 2018 it launched its first clinical trial sites as part of a partnership with Novartis, and a Novartis collaboration on patient access to trials was reported in January 2019. In May 2021 it announced a collaboration with Sanofi on COPD clinical development. It raised a Series A led by Sequoia Capital and a Series B led by Thrive Capital, followed by a $156 million Series C announced September 30, 2021, led by Sam Altman and Lachy Groom. In June 2024 it closed a Series D of $372,249,945 co-led by Andreessen Horowitz and Sanofi. The company subsequently rebranded as Formation Bio, and as of the current website presents itself as a tech-driven, AI-native pharma company; Mike Ehlers joined as Chief Scientific Officer and Head of R&D.

Risks & controversies

The sources describe sector-level risk rather than company-specific controversy: high clinical development costs, with roughly 60% of R&D spend sunk into drugs that never reach market, only about 10% of candidates entering development receiving FDA approval as of 2022, and attrition of roughly 47-60% of drugs advancing from Phase 2 to Phase 3 and 50-70% passing Phase 3 as of 2025. Reported figures across sources are inconsistent (e.g., founding year 2013 vs. 2016; total funding $156M vs. $528M; employee counts of 110, 193 and 232), and some data points come from estimate-based aggregators.

Compiled by commissioned research from 8 cited public sources β€” announcements, filings, and press listed under research sources below.

Key figures

latest reported
Approved drugs worked on by team and advisorsApr 202545 drugs
EmployeesJan 2026193 people
Estimated annual revenueJan 2026$36M
Funding stageJan 2026Series D, private
Regulatory submissions by team and advisorsMay 202475 submissions
Study timeline accelerationSep 202150%
Total fundingJan 2026$528M
ValuationAug 2022$1B

Company-reported or press-reported figures, each dated to when it was claimed β€” not independently audited.

Timeline Β· 8

launches, deals, and filings
Jan 2026
Mike Ehlers joins Formation Bio as Chief Scientific Officer and Head of R&D

Announced on the company website; date not specified by the source.

source β†—

Jun 2024
TrialSpark closes $372.2M Series D co-led by Andreessen Horowitz and Sanofi

The company issued 45,493,758 Series D preferred shares for gross proceeds of $372,249,945, with 16 investors participating under Regulation D.

$372.2M source β†—

Jun 2024
Scott Kupor and Alfred Lin join the board

As part of the Series D, Scott Kupor of Andreessen Horowitz and Alfred Lin of Sequoia Capital joined the company's board of directors.

source β†—

Jan 2024
Rebrand from TrialSpark to Formation Bio

The company, originally named TrialSpark, now operates as Formation Bio; the trialspark.com domain presents Formation Bio branding. Exact rebrand date not stated in sources.

source β†—

Sep 2021
TrialSpark raises $156M Series C led by Sam Altman and Lachy Groom

Funds earmarked to acquire and/or partner on clinical-stage pharmaceutical assets, invest in biotechs with development-ready candidates, and scale the team.

$156M source β†—

May 2021
TrialSpark and Sanofi collaborate on COPD clinical development

TrialSpark Inc. announced a collaboration with Sanofi to execute clinical development work in COPD.

source β†—

Jan 2019
Novartis and TrialSpark collaborate on patient access to clinical trials

Reported collaboration between Novartis and TrialSpark aimed at maximizing patient access to clinical trials.

source β†—

Dec 2018
TrialSpark launches first clinical trial sites under Novartis partnership

TrialSpark debuted its first clinical trial sites as part of a partnership with Novartis.

source β†—

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Legal entities Β· 1

corporate structure
TrialSparkDelaware

In the news

β–ΈResearch sources Β· 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does TrialSpark do?
Formation Bio (formerly TrialSpark) is a New York tech- and AI-driven pharma company that in-licenses and develops clinical-stage drugs.
Who founded TrialSpark?
TrialSpark was founded by Linhao Zhang, Benjamine Liu in 2013.
Who are TrialSpark's investors?
TrialSpark's investors include Andreessen Horowitz, Sam Altman, Section 32, Sequoia Capital, Thrive Capital, Mantis Capital, Spark Capital.
How much funding has TrialSpark raised?
TrialSpark has disclosed $372.2M raised across 1 of its 2 known rounds.
Where is TrialSpark headquartered?
TrialSpark is headquartered in New York, US.