Free ranking · Hiring velocity signals

Fastest growing Building Construction companies

379 Building Construction companies grew in the window and pass the size floor. The table shows the top 10. Growth compares each company's employee count between two weekly hiring-velocity batches.

Batch of Sep 29, 2026

Companies ranked: 379
Shown free: 10
#1 headcount change: +100%

Batch of Sep 29, 2026

Top 10 companies

Fastest growing Building Construction companies, top 10
#	Company	10-week headcount change	Employees Jul 22, 2026	Employees Sep 29, 2026
1	Boralboral.com.au	+100%	5,001	10,000
2	Southland Industriessouthlandind.com	+100%	5,001	10,000
3	Johnson Barrow Inc.jbarrow.com	+98.2%	110	218
4	Gemeente Sdwest-Fryslnsudwestfryslan.nl	+97.6%	501	990
5	Rgga Empreendimentosrogga.com.br	+88.5%	470	886
6	Vci Constructionvcicom.com	+88.3%	266	501
7	Conseil Dpartemental Du Val De Marnevaldemarne.fr	+79.7%	2,783	5,001
8	Centimark Corporationcentimark.com	+79.7%	1,001	1,799
9	Prumo Engenhariaprumoengenharia.com.br	+76.6%	1,001	1,768
10	Closets By Designclosetsbydesign.com	+76%	500	880

Showing the top 10 of 379 companies ranked in Building Construction. The Signal API returns all of them.

Get them with one API call

Signal API · MCP

Get the signals behind this ranking

One search call returns the hiring-velocity signal for each company: open roles, headcount and the 30-day change. Add company_domains or industries and rank the companies your own way.

Start Free1,000 free creditsUse it in Claude via MCP

2 credits per company returned; zero-result calls are free.

curl -X POST https://signals.autobound.ai/v1/companies/search \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"signal_types":["hiring-velocity"],"limit":100}'

Showing the top 10 of 379 companies ranked in Building Construction. The Autobound Signal API returns every row: POST /v1/companies/search with the body above. The MCP server is at https://mcp.autobound.ai/mcp (sign in with OAuth). A free account has 1,000 credits.

Questions about this ranking

What does 10-week headcount change mean?

It compares each company's employee count in the hiring-velocity batch of Sep 29, 2026 with the batch of Jul 22, 2026. Jumps too large to be real growth are left out.

How many Building Construction companies are in this ranking?

379 Building Construction companies grew in the window and pass the size floor. This page shows the top 10.

Can I track headcount for my own accounts?

Yes. Call POST /v1/companies/enrich with a domain and signal_types: ["hiring-velocity"]. The signal carries data.numberOfEmployees and data.numberOfOpenRoles. Enrich costs 2 credits per signal returned. A new account gets 1,000 free credits.

How this list is built

Source: Autobound Signal API: hiring-velocity
Method: Companies with at least 100 employees at the base date and at least 3 open roles, ranked by headcount change between two weekly hiring-velocity batches, per industry.
Data as of: Sep 29, 2026

How this ranking is built →The Signal API for this data →

Fastest growing companies

Other industries

All 11 industries →