Double Blind Bio

Clinical Trial Services (CRO) · Custom Software Development
1open role
$5.6Mlatest round · Venture round · Dec 2025 · 11 mo ago
2backers · Define Ventures, Salt
4team · US Form 5500 (plan participants) · Dec 2025

Overview

AI agents that automate site and sponsor workflows across the trial lifecycle - so trials move faster without adding headcount.

Funding and backers

Total raised
$5.6M
1 round on record
Latest round
$5.6M
Venture round · Dec 2025 · 11 mo ago
Team
4
US Form 5500 (plan participants) · Dec 2025
Hiring now
1
open roles
Backers
2
Define Ventures, Salt
The money's age
Fresh money
11 months since the last round · hiring slowed
Momentum
20/100
fresh money
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Dec 10, 2025 Raised a round Venture round $5.6M · SEC Form D 2025 Founded
Tractionpublic signals, read monthly
Web presence
top 11%
of 133.2M domains by links, Common Crawl
Funding rounds
RoundDateAmountInvestorsSource
Venture round Dec 2025 $5.6M — SEC Form D
Registers and programsofficial lists and records that name the company
Legal entity Double Blind Bio, Inc. its site
Founders and leadersfrom filings, registers and the company's site
David HughesExecutive Officer, DirectorSEC Form D
Shruti TibrewalaExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
Define Ventures fund Salt fund
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Jobs

≈ $172k – $353k per year (Estimated) · Hybrid · Full-Time · San Francisco
Weights & Biases
AI Agents
LangSmith
LLM
Braintrust
Human-in-the-Loop
Agentic Workflows
Analytics
A/B Testing
Apply

Growth

Hiring Momentum
46/100
Stable
Open positions
1
0 opened / 0 closed in 30 days
Median time-to-fill
34 days
faster than 39% of the market
ATS activity
Every ~5 hours
Today
Hiring Dynamics +100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Sales
100% ▼

Financials

Total raised
$5.6M
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
Round Announced Amount
Venture - Series Unknown 2025 $5.6M Details

People

David Hughes
Executive Officer, Director
SEC Form D
Shruti Tibrewala
Executive Officer, Director
SEC Form D
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data

Tech stack

Technologies named in job postings at Double Blind Bio over the last 12 months, by layer, with the share of postings for each.
Technologies in use
8
Postings analysed
2
Stack modernity
69/100AI adopter
Cloud & platforms
LangSmith
Weights & Biases
Developer tools
Braintrust
AI & ML
LLM
Practices & domains
AI Agents
A/B Testing
Agentic Workflows
Human-in-the-Loop
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Connections

List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors2
Define VenturesVia a fund
10 portfolio companies: DexCare, Evermore Outcomes, Fair Square Medicare and 7 more
SaltVia a fund
97 portfolio companies: Verasight, Workstream, Videra Health and 94 more
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Offices

Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
San Francisco
San Francisco United States
HQ
Want to work with a world class team?
1 open roles 1 posted in 90 days 10-50 est. staff
hires for Leadership
San Francisco, CA 94118
seen since May 2026 company site, job postings