---
title: "Sinclair Research Ltd."
id: 11292
type: "company"
slug: "sinclair-research-ltd"
url: "http://localhost/company/sinclair-research-ltd/"
markdown_url: "http://localhost/company/sinclair-research-ltd.md"
published_at: "2019-06-19T14:24:30+00:00"
modified_at: "2025-11-02T13:53:56+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2019/06/Sinclair-300x54-1.png"
excerpt: "Sinclair Research was the most recognizable of a series of names for a company Clive Sinclair started to produce his many inventions. Sinclair Research designed, marketed and sold the MK-14, ZX80, ZX81, ZX Spectrum, QL and a variety of other products. US Employees Maggy Bruzelius, Executive Vice President for U.S. Operations Nigel Searle, Managing Director…"
category:
  - name: "Company"
    slug: "company"
    taxonomy: "category"
    url: "http://localhost/category/company/"
  - name: "New Hampshire"
    slug: "nh"
    taxonomy: "category"
    url: "http://localhost/category/location/united-states/nh/"
post_tag:
  - name: "Sinclair Research Ltd."
    slug: "sinclair-research-ltd"
    taxonomy: "post_tag"
    url: "http://localhost/tag/sinclair-research-ltd/"
indiv:
  - name: "Beth Elliott"
    slug: "beth-elliott"
    taxonomy: "indiv"
    url: "http://localhost/indiv/beth-elliott/"
  - name: "Cynthia D’Angelo"
    slug: "cynthia-dangelo"
    taxonomy: "indiv"
    url: "http://localhost/indiv/cynthia-dangelo/"
  - name: "David Ornstein"
    slug: "david-ornstein"
    taxonomy: "indiv"
    url: "http://localhost/indiv/david-ornstein/"
  - name: "Leonie Freo Baldwin"
    slug: "leonie-freo-baldwin"
    taxonomy: "indiv"
    url: "http://localhost/indiv/leonie-freo-baldwin/"
  - name: "Maggy Bruzelius"
    slug: "margaret-bruzelius"
    taxonomy: "indiv"
    url: "http://localhost/indiv/margaret-bruzelius/"
  - name: "Mary Reinman"
    slug: "mary-reinman"
    taxonomy: "indiv"
    url: "http://localhost/indiv/mary-reinman/"
  - name: "Nigel Searle"
    slug: "nigel-searle"
    taxonomy: "indiv"
    url: "http://localhost/indiv/nigel-searle/"
address: "3 Sinclair Plaza, Nashua, NH 03061"
related_content:
  - id: 35621
    title: "American Express Boosts Sales of the ZX81"
    type: "document"
    url: "http://localhost/document/american-express-boosts-sales-of-the-zx81/"
  - id: 35717
    title: "Important Information memo"
    type: "document"
    url: "http://localhost/document/important-information-memo/"
  - id: 35743
    title: "ZX81 Assembly Instructions"
    type: "document"
    url: "http://localhost/document/zx81-assembly-instructions/"
advertisers:
  - id: 26635
    title: "SYNC v1 n1"
    type: "issue"
    url: "http://localhost/issue/sync-v1-n1/"
  - id: 26636
    title: "SYNC v1 n2"
    type: "issue"
    url: "http://localhost/issue/sync-v1-n2/"
  - id: 26640
    title: "SYNC v1 n6"
    type: "issue"
    url: "http://localhost/issue/sync-v1-n6/"
  - id: 26641
    title: "SYNC v2 n1"
    type: "issue"
    url: "http://localhost/issue/sync-v2-n1/"
  - id: 26642
    title: "SYNC v2 n2"
    type: "issue"
    url: "http://localhost/issue/sync-v2-n2/"
  - id: 26643
    title: "SYNC v2 n3"
    type: "issue"
    url: "http://localhost/issue/sync-v2-n3/"
  - id: 26644
    title: "SYNC v2 n4"
    type: "issue"
    url: "http://localhost/issue/sync-v2-n4/"
  - id: 26645
    title: "SYNC v2 n5"
    type: "issue"
    url: "http://localhost/issue/sync-v2-n5/"
  - id: 26648
    title: "SYNC v3 n2"
    type: "issue"
    url: "http://localhost/issue/sync-v3-n2/"
  - id: 26704
    title: "Syntax/Syntax ZX80 v3 n5"
    type: "issue"
    url: "http://localhost/issue/syntax-syntax-zx80-v3-n5/"
  - id: 26710
    title: "Syntax/Syntax ZX80 v3 n9"
    type: "issue"
    url: "http://localhost/issue/syntax-syntax-zx80-v3-n9/"
  - id: 52468
    title: "Syntax/Syntax ZX80 v3 n1"
    type: "issue"
    url: "http://localhost/issue/syntax-syntax-zx80-v3-n1/"
publisher_publications:
  - id: 26040
    title: "Who’s Who at Sinclair"
    type: "book"
    url: "http://localhost/book/whos-who-at-sinclair/"
archiveorg_url: "https://archive.org/details/sinclair-research/"
companies_articles:
  - id: 7613
    title: "Timex says it’s leaving the home-computer market"
    type: "article"
    url: "http://localhost/article/timex-says-its-leaving-the-home-computer-market/"
  - id: 7915
    title: "$99.95 Timex Sinclair 1000 microcomputer debuts"
    type: "article"
    url: "http://localhost/article/99-95-timex-sinclair-1000-microcomputer-debuts/"
  - id: 19225
    title: "16K RAM Approved; New Interface"
    type: "article"
    url: "http://localhost/article/16k-ram-approved-new-interface/"
  - id: 24304
    title: "16K RAM Pack Schematic Corrections"
    type: "article"
    url: "http://localhost/article/16k-ram-pack-schematic-corrections/"
  - id: 24259
    title: "8K Basic ROM"
    type: "article"
    url: "http://localhost/article/8k-basic-rom/"
  - id: 24237
    title: "8K Basic ROM and 16K-Byte RAM Pack Specifications"
    type: "article"
    url: "http://localhost/article/8k-basic-rom-and-16k-byte-ram-pack-specifications/"
  - id: 19686
    title: "8K ROM Update"
    type: "article"
    url: "http://localhost/article/8k-rom-update/"
  - id: 19239
    title: "8K ROM, 16K RAM Updates"
    type: "article"
    url: "http://localhost/article/8k-rom-16k-ram-updates/"
  - id: 20418
    title: "A Brief Overview of the Chicago Consumer Electronics Show and National Computer Conference in Houston"
    type: "article"
    url: "http://localhost/article/a-brief-overview-of-the-chicago-consumer-electronics-show-and-national-computer-conference-in-houston/"
  - id: 25988
    title: "A British computer hits it big"
    type: "article"
    url: "http://localhost/article/a-british-computer-hits-it-big/"
  - id: 26478
    title: "A piece of cake in Dundee"
    type: "article"
    url: "http://localhost/article/a-piece-of-cake-in-dundee/"
  - id: 19314
    title: "A Report on the Spectrum"
    type: "article"
    url: "http://localhost/article/a-report-on-the-spectrum/"
  - id: 9140
    title: "American Express To Market Sinclair Research Computers"
    type: "article"
    url: "http://localhost/article/american-express-to-market-sinclair-research-computers/"
  - id: 24199
    title: "An Interview with Alfred Milgram"
    type: "article"
    url: "http://localhost/article/an-interview-with-alfred-milgram/"
  - id: 26921
    title: "Authorized Sinclair Repair Services"
    type: "article"
    url: "http://localhost/article/authorized-sinclair-repair-services/"
  - id: 44022
    title: "Bankruptcy Filing for Cambridge North America"
    type: "article"
    url: "http://localhost/article/bankruptcy-filing-for-cambridge-north-america/"
  - id: 7908
    title: "Betting is heavy – and we’re not talking about Ascott"
    type: "article"
    url: "http://localhost/article/betting-is-heavy-and-were-not-talking-about-ascott/"
  - id: 43161
    title: "Bits & Bytes"
    type: "article"
    url: "http://localhost/article/bits-bytes-37/"
  - id: 42573
    title: "Bits & Bytes"
    type: "article"
    url: "http://localhost/article/bits-bytes-21/"
  - id: 43167
    title: "Bits & Bytes"
    type: "article"
    url: "http://localhost/article/bits-bytes-39/"
  - id: 42579
    title: "Bits & Bytes"
    type: "article"
    url: "http://localhost/article/bits-bytes-22/"
  - id: 9136
    title: "U.K. Firm Bringing Out Small, Low-Priced Microcomputer"
    type: "article"
    url: "http://localhost/article/u-k-firm-bringing-out-small-low-priced-microcomputer/"
  - id: 52249
    title: "Sinclair Research of U.K. to Unveil A Microcomputer: Weighing Less Than a Pound, It Will Cost $200 in U.S., Will Be Marketed Soon"
    type: "article"
    url: "http://localhost/article/sinclair-research-of-u-k-to-unveil-a-microcomputer-weighing-less-than-a-pound-it-will-cost-200-in-u-s-will-be-marketed-soon/"
companies_products:
  - id: 11526
    title: "16K RAM"
    type: "product"
    url: "http://localhost/product/16k-ram-for-zx80-1/"
  - id: 11550
    title: "1K Games"
    type: "product"
    url: "http://localhost/product/1k-games/"
  - id: 11669
    title: "8K BASIC ROM"
    type: "product"
    url: "http://localhost/product/8k-basic-rom/"
  - id: 35082
    title: "Astronomer’s Guide"
    type: "product"
    url: "http://localhost/product/astronomers-guide/"
  - id: 11859
    title: "Backgammon and Dice"
    type: "product"
    url: "http://localhost/product/backgammon-and-dice/"
  - id: 12054
    title: "Cassette 2: Junior Education"
    type: "product"
    url: "http://localhost/product/cassette-2-junior-education/"
  - id: 34078
    title: "Cassette 5: Junior Education"
    type: "product"
    url: "http://localhost/product/cassette-5-junior-education/"
  - id: 35473
    title: "Chess"
    type: "product"
    url: "http://localhost/product/chess/"
  - id: 12211
    title: "Computer Learning Lab"
    type: "product"
    url: "http://localhost/product/computer-learning-lab/"
  - id: 34909
    title: "English Literature 1"
    type: "product"
    url: "http://localhost/product/english-literature-1/"
  - id: 34910
    title: "English Literature 2"
    type: "product"
    url: "http://localhost/product/english-literature-2/"
  - id: 12524
    title: "Fantasy Games"
    type: "product"
    url: "http://localhost/product/fantasy-games/"
  - id: 14321
    title: "Flight Simulator"
    type: "product"
    url: "http://localhost/product/flight-simulator-1000/"
  - id: 34911
    title: "Geography 1"
    type: "product"
    url: "http://localhost/product/geography-1/"
  - id: 34912
    title: "History 1"
    type: "product"
    url: "http://localhost/product/history-1/"
  - id: 34913
    title: "Inventions 1"
    type: "product"
    url: "http://localhost/product/inventions-1/"
  - id: 25971
    title: "Keytops for QL"
    type: "product"
    url: "http://localhost/product/keytops-for-ql/"
  - id: 34915
    title: "Music 1"
    type: "product"
    url: "http://localhost/product/music-1/"
  - id: 25970
    title: "QL case"
    type: "product"
    url: "http://localhost/product/ql-case/"
child_pages: false
---

[![Image](http://localhost/wp-content/uploads/2019/06/Sinclair-300x54.png "Sinclair")](http://localhost/wp-content/uploads/2019/06/Sinclair.png)

[Sinclair Research](https://en.wikipedia.org/wiki/Sinclair_Research) was the most recognizable of a series of names for a company Clive Sinclair started to produce his many inventions.

Sinclair Research designed, marketed and sold the [MK-14](https://en.wikipedia.org/wiki/MK14), [ZX80](http://localhost/computers/sinclair-zx80/), [ZX81](http://localhost/computers/sinclair-zx81/), [ZX Spectrum](https://en.wikipedia.org/wiki/ZX_Spectrum), [QL](https://en.wikipedia.org/wiki/Sinclair_QL) and a variety of other products.

### US Employees

- [Maggy Bruzelius](http://localhost/indiv/margaret-bruzelius/), Executive Vice President for U.S. Operations
- [Nigel Searle](http://localhost/indiv/nigel-searle/), Managing Director
- [Cynthia D’Angelo](http://localhost/indiv/cynthia-dangelo/), Director
- [Leonie Freo Baldwin](http://localhost/indiv/leonie-freo-baldwin/), Customer and General Public Relations Co-ordinator
- [Beth Elliot](http://localhost/indiv/beth-elliott/), Technical Advisor/Hardware Department
- [Mary Reinman](http://localhost/indiv/mary-reinman/), Public Relations Manager
- [David Ornstein](http://localhost/indiv/david-ornstein/)