Fundraising Fox

Lightcast

Founded 2019 · 96 employees on LinkedIn · 8 known investors

Lightcast develops a single-cell functional analysis platform that uses droplet-based technology to profile cell function, biomolecule secretion, cell-cell interactions, and targeted cell killing at scale. It serves therapeutics discovery and development, including antibody, cell therapy, immunotherapy, and regenerative medicine research.

Also known as Lightcast Discovery

Investors · 8

Also in the syndicate · 2

Longwall Venture PartnersLongwall Ventures

Funding

SEC filings, press & company announcements

$27M disclosed across 1 of 3 rounds · 2023–2026

Source: company announcements and press reports — follow each round's link for the claim.

Company profile

researched Aug 2026

Lightcast is a life science tools company based in Cambridge, UK, developing instrumentation for functional analysis of individual cells. Its platform uses light-controlled manipulation of picoliter-scale droplets to generate, filter, array, merge, assay and dispense droplets containing cells, allowing researchers to measure what cells do rather than inferring function from molecular profiles. The company markets the technology as Envisia, a benchtop platform for single-cell functional screening.

The stated application areas are biomolecule secretion (including antibodies, cytokines and signalling molecules), cell-cell interactions, and targeted cell killing, supporting antibody discovery, cell therapy development, immunology and oncology research. Workflows span basic and translational research through drug discovery. The platform is designed for massively parallel droplet handling intended to overcome Poisson loading limits, controlled droplet merging to construct true single cell-cell pairings, sequential merges for multi-step assays, real-time imaging-based hit selection using brightfield and fluorescence reporters, digital traceability of each droplet from load to dispense, and real-time export of live single or pooled cells into standard 96-well plates for downstream analysis or outgrowth.

Lightcast was founded in 2019 and is led by CEO Paul Loeffen. Its leadership team spans commercial, product, finance, IP, marketing, science/business development, application support and microfluidic product functions, and it maintains scientific advisors from Massachusetts General Hospital/Harvard Medical School and UC Berkeley.

Founding story

Sources state the company was founded in 2019 and developed technology using rays of light to control picoliter-scale droplets for functional analysis of individual cells; no further founding detail is reported.

Business model

Lightcast develops and commercialises a benchtop instrument platform (Envisia) plus consumable microfluidic chips and controlling/analysis software for life science research organisations. Sources describe both service-style engagements, in which Lightcast scientists run initial assay development in-house for partners, and instrument purchase, in which partners run work at their own sites with Lightcast support.

Not specified beyond instrument sales to partners who choose to purchase the platform and in-house assay development work performed for early-access partners.

Traction

Envisia is in an expanded early-access programme with pharmaceutical companies and academic institutions used to validate platform performance, optimise workflows and broaden applications; the Flemish Institute of Biotechnology (VIB) is named as an early-access Luminary partner. The company operates a Boston Innovation Centre alongside its Cambridge, UK site and is actively recruiting. Full commercial release of Envisia is targeted for 2026.

Latest developments

In April 2026 Lightcast announced $27 million in financing from existing investors, led by ARCH Venture Partners with M Ventures, Illumina Ventures, +ND Capital, Longwall Ventures and OMX Ventures participating. Proceeds are earmarked for the full commercial release of the Envisia benchtop platform in 2026, deeper strategic collaborations, an expanded portfolio of single-cell functional assays, and technical, manufacturing and software readiness milestones. Brad Crutchfield, formerly chief commercial officer of 10x Genomics, was recently appointed an advisor to the board of directors.

Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Positioned in the single-cell analysis tools market as a provider of function-focused measurement, contrasted in company and press statements with approaches that infer cell function rather than directly measuring it. Its investor base includes ARCH Venture Partners, M Ventures, Illumina Ventures, +ND Capital, Longwall Ventures and OMX Ventures.

Company materials emphasise massively parallel droplet handling that overcomes Poisson-limited loading, precise light-based control of droplet merging to create defined single cell-cell interactions, the ability to perform multiple sequential merges for step-wise assays, machine-learning-optimised droplet arraying with environmental control, digital traceability of individual droplets from load to dispense, and real-time export of live cells meeting user-defined criteria into standard well plates. Press coverage frames the differentiator as direct measurement of cellular function rather than inference.

Technology

The core technology uses optically controlled electrowetting-on-dielectric (oEWOD) — described as moving droplets with light and as integrating EWOD with microfluidics — to manipulate tens of thousands of picoliter-scale droplets on a chip. The workflow comprises droplet generation and loading from multiple inputs (four or eight specific inputs depending on configuration) optimised for fragile samples; droplet acquisition and filtering by size and content using 'light sprites'; machine-learning-optimised arraying where target droplets form the array and disqualified droplets are discarded within an environmentally controlled array; massively parallel merging of interdigitated sample droplets by field of view or across the whole chip, including multiple sequential merges; assaying via configurable brightfield and fluorescence imaging with a range of functional reporters processed in real time; and real-time dispensing of selected single or pooled cells into 96-well plates.

Go-to-market

Lightcast runs a 'Luminary' early-access programme for the Envisia platform, structured in stages: initial discussion of research needs, an optional internal seminar, scientific consultation and workplan drafting, assay development (performed at Lightcast or at the partner's site if the instrument is purchased), and support toward peer-reviewed publication. It works with pharmaceutical companies and academic institutions to validate performance, optimise workflows and broaden applications, supported by facilities in Cambridge, UK and Boston, US, and publishes posters, white papers and videos as scientific marketing collateral. Full commercial release of Envisia is planned for 2026.

Academic and translational researchers, pharmaceutical companies and biotech drug discovery groups working on antibody discovery, cell and immunotherapies, immunology and oncology.

Geography

Headquartered in Cambridge, UK, with a Boston Innovation Centre in the United States led by Head of the Innovation Centre Megan Gottlieb. Early-access partners include the Flemish Institute of Biotechnology (VIB) in Belgium.

History

Founded in 2019, Lightcast developed a technology that uses light to control picoliter-scale droplets for functional analysis of individual cells. Employee testimonials indicate team growth from at least 2021-2022 across software, chip fabrication, chemistry and biology functions. The company raised approximately £38 million (about $49 million at the time) in a Series B round in 2023, and a further $27 million from existing investors announced in April 2026. Over the year preceding the 2026 financing it expanded the Envisia early-access programme with pharmaceutical companies and academic institutions, and appointed Brad Crutchfield, former chief commercial officer of 10x Genomics, as an advisor to its board of directors.

Risks & controversies

The Envisia platform had not reached full commercial release as of the April 2026 financing, with commercialisation dependent on achieving technical, manufacturing and software readiness milestones; the 2026 round was raised from existing investors only. No controversies are reported in the sources.

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

Key figures

latest reported
Founding yearApr 20262,019 year
Series B amount (GBP)Jan 202338,000,000 GBP

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

Competitors · 4

by search overlap

Companies competing with Lightcast for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline · 6

launches, deals, and filings
Apr 2026
Lightcast raises $27M led by ARCH Venture Partners

Lightcast announced $27 million in financing from existing investors, led by ARCH Venture Partners with participation from M Ventures, Illumina Ventures, +ND Capital, Longwall Ventures and OMX Ventures, to fund the full commercial release of the Envisia benchtop platform in 2026, deepen strategic collaborations, expand its single-cell functional assay portfolio and hit technical, manufacturing and software milestones.

$27M source ↗

Apr 2026
Brad Crutchfield appointed advisor to the board of directors

Brad Crutchfield, former chief commercial officer of 10x Genomics, was recently appointed as an advisor to Lightcast's board of directors.

source ↗

Jan 2026
Boston Innovation Centre supports US customers

Lightcast operates a Boston Innovation Centre in the US alongside its Cambridge, UK teams, headed by Megan Gottlieb, to support early-access and customer research.

source ↗

Jan 2026
Envisia early-access (Luminary) programme with VIB and pharma/academic partners

Lightcast expanded its Envisia early-access programme over the past year, working with pharmaceutical companies and academic institutions to validate performance, optimise workflows and broaden applications; the Flemish Institute of Biotechnology (VIB) is named as an early-access Luminary partner.

source ↗

Jan 2026
Planned full commercial release of Envisia benchtop platform

Lightcast stated the 2026 financing will support the full commercial release of its Envisia benchtop single-cell functional analysis platform in 2026; early access is offered via the Luminary programme.

source ↗

Jan 2023
Series B of approximately £38 million (~$49 million)

Lightcast raised approximately £38 million, reported as about $49 million at the time, in a Series B round in 2023.

$49M source ↗

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

In the news

Research sources · 8

primary sources listed

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

Frequently asked questions

What does Lightcast do?
Cambridge, UK life science tools company building Envisia, a light-controlled droplet platform for single-cell functional analysis.
Who are Lightcast's investors?
Lightcast's investors include +ND Capital, Illumina Ventures, Longwall Venture Partners LLP, M Ventures, OMX Ventures, ARCH Venture Partners.
How much funding has Lightcast raised?
Lightcast has disclosed $27M raised across 1 of its 3 known rounds.