← Analysis
The Navy Built the Base. San Diego Built Two Industries Next to It.
Naval Base San Diego was already the largest naval base on the West Coast before any tech or biotech company existed there — 1,600 acres, homeport of the Pacific Fleet since the WWI-era shipbuilding boom that first cleared the land. In 1965, city and business leaders made a deliberate choice not to stay a one-industry Navy town: they zoned Torrey Pines Mesa for science. Two genuinely separate industries grew out of that decision — Qualcomm's wireless communications (1985) and a genomics cluster anchored by Illumina (1998) and the San Diego Zoo's Frozen Zoo — and eighty years after the base was built, defense tech is still the newest thing choosing San Diego, not the oldest thing holding it back. This site's own graph holds 29 real San Diego companies and investors, split almost evenly between the two engines, with Illumina itself still absent from the graph.

Start with what was already there before any of this had a name. Naval Base San Diego is the largest United States Navy base on the West Coast and the second-largest surface-ship naval base in the world, after Naval Station Norfolk.[1] The 1,600 acres it sits on were first cleared in 1918 by a wartime coalition of concrete-shipbuilding firms operating under the Emergency Fleet Corporation — a defense industrial buildup that predates Qualcomm, UC San Diego, and every biotech company on Torrey Pines Mesa by decades.[1] Today it homeports the US Pacific Fleet: more than 50 ships, over 150 tenant commands, and a population of more than 24,000 military personnel and 10,000 civilians on base.[1] San Diego was a one-industry Navy town for most of its modern history, and the Navy was never going anywhere.

What changed the story was a deliberate choice, not a market accident. After World War II, city leaders zoned Torrey Pines Mesa specifically for research and small-scale manufacturing rather than more of what the rest of the city already did.[2] Jonas Salk and architect Louis Kahn approached the city in March 1960 about a land gift on the mesa; voters approved it in a June 1960 referendum, the same year UC San Diego itself was established.[2] In 1965, civic and business leaders formally designated the mesa for science, hoping to build new industries and high-paying jobs the Navy alone would never produce.[2] The Salk Institute, Scripps Research, and what later became Sanford Burnham Prebys all trace back to that single planning decision.

24,000+military personnel on Naval Base San Diego, plus 10,000+ civilians — the largest US Navy base on the West Coast
1965the year city and business leaders deliberately zoned Torrey Pines Mesa for science, not more of the Navy town San Diego already was
29companies and investors this site's own graph currently holds for San Diego, split almost evenly between defense tech and biotech

The first real company out of that decision was defense-adjacent almost by accident. Irwin Jacobs joined UC San Diego as founding engineering faculty in 1966 and taught there until 1972.[3] In July 1985, Jacobs and six colleagues — including Andrew Viterbi — founded Qualcomm to build wireless communications technology, work with direct military-communications roots.[3] Jacobs and his wife Joan later gave $15 million to name the UC San Diego engineering school after themselves in 1997, then returned in March 2003 with a $110 million gift — at the time the largest single gift in UC San Diego's history — effectively reinvesting Qualcomm's wealth back into the same school that trained its founder.[4]

The second industry grew on the same mesa, independent of the first. Illumina was founded in San Diego in 1998 by five scientists and entrepreneurs building high-throughput genetic-analysis technology — not a Qualcomm spinout, not a defense contract, a separate bet on genomics placed thirteen years later on the same zoned ground.[5] It is now a global leader in DNA sequencing. A second, far less visible genomics institution sits a few miles away: the San Diego Zoo's Frozen Zoo, the world's largest cryobank of living cell cultures, holding roughly 10,000 samples across nearly 1,000 species. In August 2020 it produced the first cloned Przewalski's horse, a foal named Kurt, from cells frozen forty years earlier.[6] Later that same year, cells from the Frozen Zoo produced Elizabeth Ann, the first cloned individual of any US endangered species — a black-footed ferret copied from a donor that had been dead for 36 years.[7]

Not a smaller Silicon Valley -- the same finding this site made about the DMV San Diego's venture graph doesn't split into "tech, and everything else" any more than the DMV's does. It splits into a defense engine and a biotech engine, both real, neither one a diminished copy of what Palo Alto or Cambridge built. The DMV piece is here.

Eighty years after the base was built, defense tech is still the newest thing choosing San Diego — not despite the Navy, because of it. Shield AI, an autonomous-defense-systems company founded by a former Navy SEAL, took its earliest support from Naval Special Warfare Command and the Defense Innovation Unit in 2016.[8] In March 2026 it raised a $1.5 billion Series G at a $12.7 billion valuation, co-led by Advent International and JPMorgan Chase's Security and Resiliency Initiative — more than double its valuation twelve months earlier.[9] Harpoon Ventures, one of the few VC firms investing primarily in defense technology, keeps offices in San Diego specifically for its proximity to Naval Base San Diego, Camp Pendleton, and SOFWERX. The same military anchor that predates every company on this page is still the reason new ones show up.

And this site's own graph is still catching up to half the story it just told. Twenty-nine companies and investors are on file for San Diego today, split close to evenly between defense tech (Shield AI, Firestorm Labs, Redhorse, Harpoon Ventures, NavalX) and biotech (Section 32, Avalon Ventures, Prebys Ventures, the San Diego Zoo Wildlife Alliance). Illumina — the company that put San Diego on the genomics map in the first place — doesn't have its own row yet.

The takeaway San Diego didn't become a tech hub by accident and it isn't a smaller Silicon Valley. Naval Base San Diego -- the largest US Navy base on the West Coast -- was already there before any of it, cleared in 1918, homeporting the Pacific Fleet ever since. In 1965, city and business leaders deliberately zoned Torrey Pines Mesa for science rather than staying a one-industry Navy town, bringing UC San Diego, the Salk Institute, and Scripps Research onto the same ground. Two genuinely separate industries grew out of that one decision: Qualcomm's wireless communications (1985, founded by UCSD professor Irwin Jacobs) and a genomics cluster anchored by Illumina (1998) and the San Diego Zoo's Frozen Zoo, which cloned the first Przewalski's horse and the first US endangered species (a black-footed ferret) in 2020. Eighty years after the base was built, defense tech -- Shield AI, now valued at $12.7 billion -- is still choosing San Diego because of the Navy anchor, not despite it. This site's own graph holds 29 real companies and investors split between the two engines, with Illumina itself still missing from the record.
Sources
  1. Wikipedia, Naval Base San Diego
  2. Voice of San Diego, How San Diego Biotech Started and Where It's Going
  3. Jacobs School of Engineering, UC San Diego, The Jacobs Legacy
  4. Jacobs School of Engineering, UC San Diego, UCSD Announces $110 Million Gift for Engineering
  5. Wikipedia, Illumina, Inc.
  6. San Diego Zoo Wildlife Alliance, World's First Successfully Cloned Endangered Przewalski's Horse
  7. NBC 7 San Diego, DNA From San Diego's Frozen Zoo Used to Create 1st Clone of US Endangered Species
  8. Contrary Research, Shield AI: Business Breakdown & Founding Story
  9. National Today, Shield AI Raises $1.5 Billion at $12.7 Billion Valuation Amid Global Conflicts