National Sign Corporation
National Sign Corporation is a specialist commercial alteration contractor in Boston — all 13 of its segment-eligible permits fall in commercial alteration. Its permit record in Boston spans 2014–2025.
- Market
- Boston
- Active
- 2014–2025 · 11 yrs
- Licence IDs on their permits
- —
- Reliable value
- —
- Coverage
- —
- Reliable filings
- —
- Rank in Boston
- #500
- Permits (all-time, all segments)
- 13
- Filings 90d
- 0
- Filings 30d
- 0
- Latest permit
- Oct 7, 2025
Primarily Commercial Alteration — 100% of 13 segment-classified permits
National Sign Corporation has 13 permits, but too few carry a value we can stand behind — so we publish — for reliable value, never a guess. They still rank by volume; the dollar figure stays honest.
Monthly value isn’t shown: too few of National Sign Corporation’s permits carry a reliable valuation, so we publish the count trend only rather than a value line built from gaps.
Typical service area ~1 mi around Somerville
The p90 footprint of where National Sign Corporation has pulled permits in Boston — drawn from all 13 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- Somerville13
Showing 13 of 13 permits by National Sign Corporation in the indexed window · most recent first
- Oct 7, 2025Commercial Alteration16 Medford St, Somerville MassachusettsAlteration—applied Aug 22, 2025
- Jul 8, 2025Commercial Alteration133 Middlesex Ave, Somerville MassachusettsAlteration—applied Jun 1, 2025
- Jun 24, 2025Commercial Alteration330 Foley St, Somerville MassachusettsAlteration—applied Jun 3, 2025
- Jan 27, 2023Commercial Alteration338 Broadway, Somerville MassachusettsAlteration—applied Oct 10, 2022
- Dec 23, 2022Commercial Alteration309 Assembly Row, Somerville MassachusettsAlteration—applied Dec 13, 2022
- Nov 16, 2021Commercial Alteration490 Assembly Row, Somerville MassachusettsAlteration$5Kapplied Oct 25, 2021
- May 3, 2021Commercial Alteration220 Broadway, Somerville Massachusetts 02145Alteration—applied Jan 19, 2021
- Oct 19, 2020Commercial Alteration133-139 Broadway, Somerville MassachusettsAlteration—applied Aug 13, 2020
- Feb 25, 2019Commercial Alteration540 Assembly Row, Somerville Massachusetts 02145Alteration—applied Feb 13, 2019
- Dec 3, 2018Commercial Alteration731 Broadway, Somerville MassachusettsAlteration—applied Nov 15, 2018
- Jan 29, 2018Commercial Alteration544 Assembly Row, Somerville Massachusetts 02145Alteration$3Kapplied Oct 25, 2017
- Jul 18, 2014Commercial Alteration431 Artisan Way, Somerville Massachusetts 02145Alteration$3Kapplied Jul 2, 2014
- —Commercial Alteration22 McGrath Hwy, Somerville MassachusettsAlteration$4Kapplied Jun 17, 2021
Oct 7, 2025 applied Aug 22, 2025 | 16 Medford St, Somerville Massachusetts | Commercial Alteration | — |
Jul 8, 2025 applied Jun 1, 2025 | 133 Middlesex Ave, Somerville Massachusetts | Commercial Alteration | — |
Jun 24, 2025 applied Jun 3, 2025 | 330 Foley St, Somerville Massachusetts | Commercial Alteration | — |
Jan 27, 2023 applied Oct 10, 2022 | 338 Broadway, Somerville Massachusetts | Commercial Alteration | — |
Dec 23, 2022 applied Dec 13, 2022 | 309 Assembly Row, Somerville Massachusetts | Commercial Alteration | — |
Nov 16, 2021 applied Oct 25, 2021 | 490 Assembly Row, Somerville Massachusetts | Commercial Alteration | $5K |
May 3, 2021 applied Jan 19, 2021 | 220 Broadway, Somerville Massachusetts 02145 | Commercial Alteration | — |
Oct 19, 2020 applied Aug 13, 2020 | 133-139 Broadway, Somerville Massachusetts | Commercial Alteration | — |
Feb 25, 2019 applied Feb 13, 2019 | 540 Assembly Row, Somerville Massachusetts 02145 | Commercial Alteration | — |
Dec 3, 2018 applied Nov 15, 2018 | 731 Broadway, Somerville Massachusetts | Commercial Alteration | — |
Jan 29, 2018 applied Oct 25, 2017 | 544 Assembly Row, Somerville Massachusetts 02145 | Commercial Alteration | $3K |
Jul 18, 2014 applied Jul 2, 2014 | 431 Artisan Way, Somerville Massachusetts 02145 | Commercial Alteration | $3K |
— applied Jun 17, 2021 | 22 McGrath Hwy, Somerville Massachusetts | Commercial Alteration | $4K |
Addresses where National Sign Corporation has pulled repeat permits and the site itself has a deep permit history (25+ permits, all contractors). Each links to that parcel’s full record.
- Wise Construction196 commercial alteration
- Siena Construction Corporation166 commercial alteration
- The Richmond Group84 commercial alteration
- Pidc Construction69 commercial alteration
- Gloucester Builders68 commercial alteration
- Berkeley Building Company68 commercial alteration
Put National Sign Corporation on your call list.
Watch this contractor above for a daily email when they pull a new permit — or open the whole Boston book: every ranked contractor, enriched and parcel-joined.