I
iGii
Pure 3D graphene foam materials for sensing, energy and electronics
About iGii
iGii (formerly Integrated Graphene) is a Stirling advanced-materials company founded in 2016 by Claus Marquordt and Marco Caffio that produces Gii, a pure porous 3D graphene foam manufactured onto surfaces in seconds via a patented scalable process. Products include Gii-Sens biosensor electrodes for point-of-care diagnostics and Gii-Cap supercapacitor materials for electronics and energy storage, sold to manufacturers that need higher-performance carbon nanomaterials without traditional graphene production bottlenecks. In September 2026 iGii secured a £22.7 million package comprising an £11.7 million Series B led by the Scottish National Investment Bank with PXN Ventures and Archangels, plus £11 million of Scottish Enterprise support, to expand Scottish manufacturing and commercialise Gii across sensing, energy and industrial applications. Sources: Archangels; Herald Scotland; High Growth Scotland Sep 2026.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2016
- Headquarters
- Stirling, United Kingdom
- Employees
- 55
- Open positions
- 4
- Dealroom signal
- 65.2/100
- Industry
- Engineering and Manufacturing Equipment, Semiconductors
- Sector
- Semiconductors, Innovative Material Tech, Battery, Advanced Materials, NIF materials and manufacturing, Graphene, uk is8 advanced manufacturing, FBC Funded, UKis manufacturing, UKis Digital and technologies
- Technology
- Deep Tech, Nanotech, 3D Technology
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| LATE VC✓Equity / VC | Jun 2024 | $12M | $46M | Archangels · Par Equity · Scottish National Investment Bank | ↗ |
| EARLY VC✓Equity / VC | Nov 2020 | $4.1M | $16M | Par Equity · ESM Investments · Archangels · Techstart Ventures | — |
Growth signals
Latest recorded traffic for iGii is 6.7K monthly website visits, up 148.1% over the last three months. iGii's team declined 3.5% over the past year.
Open positions
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
UK Research and Innovation
Series A4 investors entered at this stage
Par Equity
ESM Investments
Archangels
Techstart Ventures
Series B and later1 investor entered at this stage
Scottish National Investment Bank
Other known investors2 additional known investors
PXN Group
Scottish EDGE
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about iGii on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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