# Northern Gritstone: portfolio, investments and team

> Northern Gritstone is a vc firm based in United Kingdom. 36 investments on record, 12 in the last 12 months, latest Oct 2026.

Source: https://millionrounds.com/fund/northern-gritstone (Millionrounds; every figure on the page links to its filing or article)

United Kingdom · [Investor](https://millionrounds.com/investors)

# Northern Gritstone

Last cheque observed Oct 2026; 36 cheques on record.

Email

Deploying now VC firm

Pre-seed Seed Series A Real Estate Smart Building Prop-tech

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Deploying now

**100%** of best year **12** **cheques in 12 months**, 36 on record

Since the last cheque **5** days **00** hrs **00** min **00** sec

Median round **$5.3M** Cheque size, as they say **$350K – $6.3M** Rounds led **4 of 36** Sole investor **7 rounds** Mostly in **United Kingdom, 100%**

Pitch Northern Gritstone

## Northern Gritstone highlights

- 01 12 cheques in the last 12 months
- 02 Mostly Seed and Series A: 71% of its rounds
- 03 Sole investor in 7 rounds, median $2.5M

## What they do

> The page lists portfolio and investment-related services but does not describe its investment approach. From their own website

- **Type:** VC firm (from a list, unverified)
- **Cheque size:** $350K – $6.3M as they say
- **Stages:** Pre-seed Seed Series A Series B Growth Pre-IPO
- **Sectors:** Real Estate Smart Building Prop-tech
- **Based in:** Manchester, United Kingdom
- **Cold pitches:** Not accepted

## The record

Every round we can evidence, newest first **36 appearances**

- **2026** 11 rounds
- **Oct** **[adsilico](https://millionrounds.com/company/adsilico)** Series A · GB · Google News search **$13M** With 2 others
- **Oct** **[Silvia Bio](https://millionrounds.com/company/silvia-bio)** Seed · GB · Tech Funding News **$4.0M** *Led*
- **Oct** **[Matter Machine](https://millionrounds.com/company/matter-machine)** Pre-seed · GB · Tech Funding News **$5.3M** With 5 others
- **Sept** **[MicroLub](https://millionrounds.com/company/microlub)** GB · Startups Magazine **$10M** *Led*
- **Jul** **[Pixel-Flo](https://millionrounds.com/company/pixel-flo)** Seed · GB · Firms' own news pages **$7.0M** *Led*
- **Jun** **[Silveray](https://millionrounds.com/company/silveray)** Pre-seed · GB · Firms' own news pages **$6.6M** With 3 others
- **May** **[Imperagen](https://millionrounds.com/company/imperagen)** Seed · GB · TechCrunch **$6.7M** With 2 others
- **Mar** **[AmpliSi](https://millionrounds.com/company/amplisi)** Pre-seed · GB · Firms' own news pages **$2.7M** *Led*
- **Mar** **[Cytotrait](https://millionrounds.com/company/cytotrait)** Seed · GB **$4.0M** Sole investor
- **Jan** **[Optalysys](https://millionrounds.com/company/optalysys)** Series A · GB **$31M** Sole investor
- **Jan** **[QV Bioelectronics](https://millionrounds.com/company/qv-bioelectronics)** Venture · GB **$6.0M** With 2 others
- **2025** 8 rounds
- **Dec** **[IVFmicro](https://millionrounds.com/company/ivfmicro)** Pre-seed · GB **$4.7M** With 1 other
- **Oct** **[Sitehop](https://millionrounds.com/company/sitehop)** Series A · GB **$10M** With 3 others
- **Aug** **[PhovIR Technologies](https://millionrounds.com/company/phovir-technologies)** Seed · GB **$5.4M** Sole investor
- **Jul** **[AssetCool](https://millionrounds.com/company/assetcool)** Series A · GB **$14M** With 2 others
- **Jun** **[Apini Therapeutics](https://millionrounds.com/company/apini-therapeutics)** Seed · GB **$2.4M** Sole investor
- **Jun** **[Literal Labs](https://millionrounds.com/company/literal-labs)** Pre-seed · GB **$6.2M** With 2 others
- **Mar** **[Phlux Technology](https://millionrounds.com/company/phlux-technology)** Series A · GB **$12M** With 4 others
- **Jan** **[BOW](https://millionrounds.com/company/bow)** Seed · GB **$5.0M** With 1 other
- **2024** 8 rounds
- **Dec** **[Partful](https://millionrounds.com/company/partful)** Series A · GB **$6.4M** With 2 others
- **Nov** **[Exciting Instruments](https://millionrounds.com/company/exciting-instruments)** Seed · GB **$5.0M** With 1 other
- **Nov** **[Silveray](https://millionrounds.com/company/silveray)** Seed · GB **$5.1M** With 3 others
- **Oct** **[MicroLub](https://millionrounds.com/company/microlub)** Seed · GB **$4.5M** With 2 others
- **Jun** **[Cavero Quantum](https://millionrounds.com/company/cavero-quantum)** Seed · GB **$2.8M** With 1 other
- **May** **[Floreon](https://millionrounds.com/company/floreon)** Venture · GB **$318K** Sole investor
- **Mar** **[Phagenesis](https://millionrounds.com/company/phagenesis)** Series D · GB **$42M** With 1 other
- **Feb** **[Adsilico](https://millionrounds.com/company/adsilico)** Seed · GB **$4.4M** With 1 other
- **2023** 7 rounds
- **Dec** **[Pragmatic Semiconductor](https://millionrounds.com/company/pragmatic-semiconductor)** Series D · GB **$229M** With 3 others
- **Sept** **[Pencil Biosciences](https://millionrounds.com/company/pencil-biosciences)** Seed · GB **$6.8M** With 3 others
- **Sept** **[C-Capture](https://millionrounds.com/company/c-capture)** Venture · GB **$12M** With 2 others
- **Aug** **[Mimetrik](https://millionrounds.com/company/mimetrik)** Seed · GB **$2.5M** Sole investor
- **Apr** **[LC AuxeTec](https://millionrounds.com/company/lc-auxetec)** Seed · GB **$2.5M** Sole investor
- **Feb** **[Re:course](https://millionrounds.com/company/re-course)** Seed · GB **$4.3M** With 3 others
- **Jan** **[Slingshot Simulations](https://millionrounds.com/company/slingshot-simulations)** Series A · GB **$3.7M** With 3 others
- **2022** 2 rounds
- **Aug** **[Imperagen](https://millionrounds.com/company/imperagen)** Seed · GB **$4.3M** With 1 other
- **Jun** **[Opteran](https://millionrounds.com/company/opteran)** Seed · GB **$12M** With 4 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

## The team

Named by the firm itself, on a filing, its Form ADV or its company registration **16 named**

AI **Alexander Ian Macpherson** director i Company register since 2021

AM **Andrew Mcculloch Graham** director i Company register since 2020

AJ **Anthony John Holden** director i Company register since 2026

CH **Claire Helen Blackburn** secretary i Company register since 2023

DE **Duncan Edward Johnson** director i Company register since 2021

JM **James Marshall Hadley** director i Company register since 2022

JE **Jane Elisabeth Madeley** director i Company register since 2021

NS **Niranjan Srihari Sirdeshpande** director i Company register since 2022

PD **Paddy Dowdall** director i Company register since 2025

SE **Susan Elaine Hartley** director i Company register since 2022

TJ **Terence James O'Neill** director i Company register since 2021

DN **David Neil Petley** director i Company register since 2021

GL **Gregory Loukas Georghiou** director i Company register since 2021

IC **Indigo Corporate Secretary Limited** corporate-secretary i Company register since 2021

PM **Pinsent Masons Secretarial Limited** corporate-secretary i Company register since 2020

RS **Russell Stuart Booker** director i Company register since 2020

We also hold **11** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

## What the register says

From the firm's own filings with the UK company register, which it must file accurately by law

- **Companies House:** 12982592, since 2020

## What they claim to have backed

From their own portfolio page (on their website)

**0** of 1 we have independently watched raise

Shareholder portal

Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.

## The cheque

Pre-seed Seed Series A

Median round joined **$5.3M** the round, not its cheque Alone, median **$2.5M**

Led 4 of 36 rounds **11%**

- **Said size:** $350K – $6.3M
- **Sole investor:** 7 rounds
- **Last cheque:** Oct 2026

Rounds by stage said on their site

- Seed said *18*
- Series A said *7*
- Pre-seed said *5*
- Venture *3*
- Series D *2*
- Series B said *-*
- Growth said *-*

Cheques by month Led Joined

Nov 2023 Oct 2026

Often in the room with

- [Praetura Ventures](https://millionrounds.com/fund/praetura-ventures) 5
- [Future Planet Capital](https://millionrounds.com/fund/future-planet-capital) 4
- [Parkwalk](https://millionrounds.com/fund/parkwalk) 4
- [IQ Capital](https://millionrounds.com/fund/iq-capital) 3
- [Innovate UK](https://millionrounds.com/fund/innovate-uk) 3
- [SyndicateRoom](https://millionrounds.com/fund/syndicateroom) 3

**Pitching Northern Gritstone?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque.

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## Who they invest alongside

The investors most often in the same rounds as Northern Gritstone. A count of rooms they were both in, not a relationship either has claimed.

[**Praetura Ventures** VC firm **5** rounds together](https://millionrounds.com/fund/praetura-ventures)[**Future Planet Capital** VC firm **4** rounds together](https://millionrounds.com/fund/future-planet-capital)[**Parkwalk** VC firm **4** rounds together](https://millionrounds.com/fund/parkwalk)[**IQ Capital** VC firm **3** rounds together](https://millionrounds.com/fund/iq-capital)[**Innovate UK** VC firm **3** rounds together](https://millionrounds.com/fund/innovate-uk)[**SyndicateRoom** VC firm **3** rounds together](https://millionrounds.com/fund/syndicateroom)[**British Business Bank** Corporate VC **2** rounds together](https://millionrounds.com/fund/national-security-strategic-investment-fund)[**Creative Destruction Lab** Accelerator **2** rounds together](https://millionrounds.com/fund/creative-destruction-lab)[**Foresight Group** Private equity **2** rounds together](https://millionrounds.com/fund/foresight-group)[**IP Group** VC firm **2** rounds together](https://millionrounds.com/fund/ip-group)[**LIFTT** VC firm **2** rounds together](https://millionrounds.com/fund/liftt)[**Mercia Asset Management** VC firm **2** rounds together](https://millionrounds.com/fund/mercia-ventures)

## Recently backed

The latest companies Northern Gritstone put money into.

[**adsilico** $13M · Oct 2026](https://millionrounds.com/company/adsilico)[**MicroLub** $10M · Sept 2026](https://millionrounds.com/company/microlub)[**Silveray** $6.6M · Jun 2026](https://millionrounds.com/company/silveray)[**Imperagen** $6.7M · May 2026](https://millionrounds.com/company/imperagen)[**AmpliSi** $2.7M · Mar 2026](https://millionrounds.com/company/amplisi)[**Cytotrait** $4.0M · Mar 2026](https://millionrounds.com/company/cytotrait)

## On podcasts

2 episodes naming Northern Gritstone in the title.

- [VC10X](https://millionrounds.com/podcasts/vc10x) 16 Jun 2026 · 42 min VC10X - Why the UK Fails to Produce Trillion-Dollar Companies - Duncan Johnson, CEO, Northern Gritstone With [Duncan Johnson](https://millionrounds.com/person/duncan-johnson-frazier-life-sciences) Mentions [Northern Gritstone](https://millionrounds.com/fund/northern-gritstone) Apple PodcastsShow page
- [UKTN: The Podcast](https://millionrounds.com/podcasts/uktn) 10 Jun 2024 · 33 min The North has all the ingredients to rival the Golden Triangle in tech – Duncan Johnson, CEO, Northern Gritstone With [Duncan Johnson](https://millionrounds.com/person/duncan-johnson-frazier-life-sciences) Mentions [Northern Gritstone](https://millionrounds.com/fund/northern-gritstone) Apple PodcastsShow page

## Quick answers about Northern Gritstone

### What does Northern Gritstone invest in?

Northern Gritstone invests most often at Seed and Series A (71% of the rounds on record), in sectors such as Real Estate, Smart Building and Prop-tech.

### How active is Northern Gritstone?

36 investments on record, 12 of them in the last 12 months, and it led 4. The most recent was in Oct 2026.

### What has Northern Gritstone invested in recently?

Its most recent investments on record: adsilico (Series A, Oct 2026), Silvia Bio (Seed, Oct 2026) and Matter Machine (Pre-seed, Oct 2026).

### How big are Northern Gritstone's cheques?

The median round it joins is $5.3M. It says it writes cheques of $350K to $6.3M.

### Does Northern Gritstone lead rounds?

Sometimes: it led 4 of its 36 investments on record (11%).

### Where does Northern Gritstone invest?

Most of the companies it backs are in the United Kingdom (100%).

### Is Northern Gritstone investing now?

Yes: it is actively investing, with 12 investments in the last 12 months.

### Who does Northern Gritstone invest alongside?

Most often Praetura Ventures (5 rounds together), Future Planet Capital (4 rounds together) and Parkwalk (4 rounds together).

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