Heirloomcarbon
heirloomcarbon.com
Actively hiring
Alternative Fuels
ESG & Carbon Accounting Software
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Overview
Connections
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Hiring now
3
+2 posted in 30 days
Backers
5
Plug and Play, AENU
Momentum
37/100
hiring for its size, a new city
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
Apr 2021
Website went live first capture in the Wayback Machine
Tractionpublic signals, read monthly
Web presence
top 0.31%
of 133.2M domains by links, Common Crawl
Hacker News stories
1
best: 93 points
Registers and programsofficial lists and records that name the company
| Legal entity | Heirloom Carbon Technologies, Inc. | its site |
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
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Visa sponsorship
5 ▼ 38%
H-1B filings in 12 months
1
Green card filings
$133k
Median offered salary
Who they sponsor
Electrical engineers
2
Chemical engineers
2
Industrial engineers
1
In the register as Heirloom Carbon Technologies, Inc., Brisbane, CA (+1 more)
Other sponsors in the same field
Bloom Energy 
Mainspring Energy 
Watershed 
AMOGY
See 3 open roles Alert me
US Department of Labor · latest filing Apr 29, 2026 · Visa details by country
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 investors
MOL SwitchVia a fund
AENUVia a fund
Lowercarbon CapitalVia a fund
Breyer CapitalVia a fund
Plug and PlayVia a fund
2742 portfolio companies
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
News
Heirloom Blog - Heirloom and Microsoft sign one of the largest permanent CO2 removal deals to-date
Heirloom and Microsoft sign one of the largest permanent CO2 removal deals to-date Microsoft has signed a long term contract to purchase up to 315,000 metric tons of CO2 removal over a multi-year period from Heirloom - a Direct Air Capture company that ha
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Report
Tech stack
Technologies named in job postings at Heirloomcarbon over the last 12 months, by layer, with the share of postings for each.
Technologies in use
2
Postings analysed
2
Stack modernity
64/100
Practices & domains
FMEA
GD&T
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Salary insights
Compensation ranges based on this company's open jobs
Median
$210k
Typical range
$203k – $233k
Open positions
3
3
Jobs
Senior
100%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Senior | 3 | $210k | $203k – $233k |
Highest paying role
Senior Project Engineer – Oxy-Combustion
$233k
Normalized to USD per year
Growth
Hiring Momentum
81/100
Scaling fast
Open positions
3
2 opened / 1 closed in 30 days
Median time-to-fill
32 days
faster than 39% of the market
ATS activity
Every ~4 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.
Industrial Engineering
60% ▲
Operations
20% ▼
Science & Research
20% ▼
Activity Timeline
New location: Brisbane
Oct 2026
New location: Calgary
Oct 2026
New location: Houston
Oct 2026
Offices
Where the company hires and what each office is for
Cities
3
Hiring now
3
Countries
2
Busiest office
Brisbane
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Headquarters
Builds here
Office with open vacancies
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Brisbane
United States
HQ
3 open roles 3 posted in 90 days $215k Avg Salary
hires for Industrial Engineering
Houston
United States
1 open roles 1 posted in 90 days $203k Avg Salary
hires for Industrial Engineering
Calgary
Canada
1 open roles 1 posted in 90 days $203k Avg Salary
hires for Industrial Engineering
Jobs
$166k – $203k per year · Hybrid · Full-Time · Calgary · Houston · Brisbane
FMEA
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